Basics
What Is EOB Posting?
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What Is EOB Posting?

EOB posting means entering the insurance payment and insurance decision into the patient's account correctly.

The poster's job is NOT to guess what Medicaid should have paid.
Read the EOB, understand the reason, and post exactly what the insurance processed.

Medicaid Insurance Names You Will See

MEDICAID

DentaQuest

Commonly associated with Keystone First dental claims in our workflow.

MEDICAID

UnitedHealthcare

May appear as UnitedHealthcare Community Plan or UHC dental.

MEDICAID

Avesis

Commonly seen in connection with Health Partners / health-plan dental administration.

MEDICAID

Geisinger

May appear as GHP Family / Geisinger Medicaid. Always identify the actual payer shown on the EOB.

Important: The name on the patient's medical insurance card and the name processing the dental claim may be different. Post according to the actual dental EOB / ERA.

Smile Center Office List

Know Our Offices

Before posting Medicaid EOBs, become familiar with the Smile Center locations. The office name matters when researching claims, contacting managers, checking providers, and reporting posting problems.

ABINGTON

Know which providers and plans are associated with this office.

MONTGOMERY

Know which providers and plans are associated with this office.

PHILADELPHIA

Know which providers and plans are associated with this office.

ROOSEVELT

Know which providers and plans are associated with this office.

WYNCOTE

Know which providers and plans are associated with this office.

Website

Familiarize yourself with the office locations and scheduling information:

https://smilecenterspa.com/schedule/

When contacting a manager about a claim, always include the office name and patient number.

The Most Important Medicaid Rule

Think: COVERED or NOT COVERED — not “50% coverage.”

Medicaid is different from a typical PPO plan. A procedure is generally processed as a covered benefit or as a non-covered / denied benefit. Do not invent percentages such as “insurance covers 50%” unless the actual EOB specifically creates patient responsibility.
Covered does NOT mean Medicaid pays the office's full regular fee.
Medicaid may have a lower allowed fee. The difference between the office fee and the Medicaid allowed amount is normally posted as the appropriate contractual adjustment, not automatically transferred to the patient.

Simple Posting Example

Office charge = $200. Medicaid allowed amount = $70. Medicaid pays $70. EOB shows $0 patient responsibility.

$200Office Charge
$70Allowed
$70Insurance Payment
$130Adjustment

Patient balance: $0 unless the EOB and plan rules specifically say otherwise.

Medicaid Is Secondary / Payer of Last Resort

For Pennsylvania Medicaid posting, treat Medicaid as the payer of last resort. If the patient has another liable insurance plan, that plan is billed first and Medicaid is secondary.

Example: patient has a PPO plan and Medicaid. Bill the PPO first. Medicaid is secondary.

If the Patient Has Two Medicaid Plans

If the patient has two Medicaid insurance plans and you are posting the payment from the primary Medicaid plan, make sure the secondary plan is not forgotten.

Create an Open Dental task for the biller to bill the secondary Medicaid insurance.

The task is used to track that the secondary claim still needs to be submitted.

Example Task

“Abington office. Patient #1310. Primary Medicaid payment has been posted. Patient also has secondary Medicaid coverage. Please bill the secondary Medicaid plan.”

How to Communicate With the Office

Use the Right Communication Channel

When you need information, clarification, or action from an office, communicate clearly and follow up until the issue is resolved.

Google Chat

The poster will be added to Google Chat groups for each office.

Use the correct office group when asking about a patient, claim, authorization, provider issue, or rebilling request.

Phone Extensions

Use the office phone extensions when the issue is urgent or easier to explain verbally.

Speak with the office manager directly when manager approval or instructions are required.

Billing Team

You may also call the biller or billing manager when the question is related to billing, claim corrections, rebilling, payer issues, or claim follow-up.

Follow Up

Do not assume that sending one message means the issue is finished.

Follow up on your requests until you receive instructions or confirmation that the claim issue has been resolved.

Open Dental Task List

A corresponding Open Dental task must be created for each request that needs follow-up from the biller.

Examples: rebill, correct claim, denial needs more information, resubmit with authorization, eligibility issue, provider issue.

Task List = Tracking System

The Open Dental Task List allows us to track your communication with the biller and make sure requests are completed.

A task is NOT a replacement for other communication. It is an additional tracking step.

Example: create a task asking the biller to resubmit the claim, then also call the biller's extension or send a Google Chat message.

Once the work is completed, the biller will mark the task as completed.

Always include enough information to identify the issue: office name, patient number, procedure/code, amount paid or denied, exact EOB reason, what you already checked, and what you recommend doing next.

Open Dental Task List — Follow-Up Workflow

When Is a Task Required?

Create an Open Dental task whenever the claim needs the biller's follow-up or action.

Rebill / Resubmit

Create a task when a corrected claim or resubmission is needed.

Correct Claim Information

Create a task when member ID, payer, authorization, provider, code, or another claim detail needs correction.

Denied — More Information Needed

Create a task when the payer needs documentation, clarification, reconsideration, appeal, or additional follow-up.

Unpaid Major Procedure

Create a task when a major denied procedure is left open for the biller to investigate or rebill.

Important: Creating a task does not replace communication. The task tracks the request; Google Chat and phone calls help get the request handled.

Correct Workflow

  1. Investigate the claim first.
  2. Create the Open Dental task with a clear description of what needs to be done.
  3. Contact the biller using Google Chat, phone extension, or another approved communication method.
  4. Follow up if the task remains open.
  5. Once the biller completes the requested work, the biller marks the task completed.

Example Task

“Abington office. Patient #1310. D2740 #19 denied because prior authorization was not attached. Approval #123456 is active. Please correct and resubmit the claim with the approval number attached.”

Do not create vague tasks.
“Claim denied — please fix” is not enough. Include the office, patient number, code/tooth, denial reason, what you found, and the action requested.

Basics — Comprehensive Quiz

8 questions. These questions intentionally use close, realistic choices. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

How to Read an EOB — Start Here

Do Not Read an EOB Randomly

Use the same order every time. The payer may change the layout, but the information you need is usually the same.

1. Payer & Payment Header

Identify the insurance company, EOB/remittance date, payment number, payment cycle, EFT/check information, and page number.

2. Patient / Member

Confirm patient name, member ID, DOB, and subscriber/member information.

3. Provider / Office

Confirm provider name, provider NPI, office/reference number, location, plan, product, and network information.

4. Claim Identifiers

Find the claim number, encounter number, authorization/preauthorization number when shown, and office reference number.

5. Procedure Lines

Read the code, tooth when applicable, description, DOS, and each individual procedure line.

6. Money Columns

Compare billed/submitted amount, approved/allowed amount, plan payment, write-off/adjustment, patient responsibility, and other insurance.

7. Denial / Processing Information

Look for processing policies, exception codes, service payment notes, denial messages, or other reason codes.

8. Totals

Confirm that the total payment you post matches the remittance/EOB total and that no procedure was accidentally missed.

Column names vary by payer. DentaQuest may say Submitted, Approved, Allowed, Writeoff, Plan Pay. UnitedHealthcare may say Billed Amount, Allowed Amount, Payable Amount, Net Amount. Learn the meaning, not only the column name.
An EOB is not permission to ignore office posting rules. If a major procedure such as a crown, root canal, extraction, denture, or partial is unpaid, follow the manual's investigation and manager-escalation rules even if the EOB displays a large write-off.

Recoupment / Reversal / Takeback

Sometimes Medicaid takes back money that was paid on an earlier EOB.

Example: original payment = $85. A later EOB shows −$85. This is a reversal / recoupment / takeback of the earlier payment.

Do not treat this like a new $0 denial.

  1. Find the original payment in Open Dental.
  2. Confirm which procedure and claim the negative amount is reversing.
  3. Read the EOB reason for the takeback.
  4. Investigate whether the claim needs correction, rebilling, reconsideration, or another action.
  5. Create an Open Dental task and contact the biller/manager when follow-up is required.
Important: a negative insurance amount is money being removed from a previously paid claim. Do not post it as though insurance simply paid $0 on a new claim.

Payment Reconciliation — Final Check Before You Finish

Before finishing an EOB, confirm that the total insurance payment entered in Open Dental exactly matches the total EFT, check, or remittance amount being posted.

Example

The EOB / EFT total is $3,842.17.

After posting all patients and procedure lines, the total insurance payment entered in Open Dental should also equal $3,842.17.

If the totals do not match, stop and investigate before finishing the payment.

Possible reasons include:

  • A patient or procedure line was missed.
  • A payment was entered twice.
  • An incorrect amount was entered.
  • A negative adjustment / recoupment was missed.
  • A claim or procedure was posted under the wrong payment.
Do not force the payment to balance by guessing or changing amounts.
The Open Dental total and the actual EFT/check/remittance total must reconcile before the EOB is considered finished.

DentaQuest EOB — How to Read a $0 Claim

DentaQuest EOB example with denied and paid claims
Tap / click the EOB to enlarge.

1. Top Header

The very top identifies DentaQuest and shows remittance information such as Internal ID, Payment Cycle, Payment #, EOB Date, and page number. Use this when locating the payment or discussing the remittance with billing.

2. Claim Detail — Patient and Provider

The Claim Detail block shows the patient name, member number, member type, DOB, provider name, provider NPI, office reference number, group/sub-group/product, service address, claim number, and authorization field.

Before investigating a denial, confirm that you are looking at the correct patient, office, provider, and plan.

3. Submitted Code / Paid Code / Tooth / Description

Submitted Code is what the office billed. Paid Code is the code the payer processed. They are often the same, but if they differ, investigate why.

The Tooth column identifies the tooth when applicable. The Description gives the procedure name.

4. DOS — Date of Service

This is the date the procedure was actually performed. Eligibility, frequency limits, and authorization validity must be evaluated for this date.

5. Submitted

This is the office charge / billed fee. In the upper claim, the submitted total is $5,404.

6. Approved / Allowed

These columns show what the payer approved and recognized under the plan. In the upper claim, they show $0, which is a strong signal that the procedures were not approved for payment on this processing.

7. Patient Pay

This is the amount the EOB assigns to the patient. In this example it is $0. Do not create a patient balance simply because Plan Pay is $0.

8. Writeoff

DentaQuest displays the amount it considers an adjustment/write-off. In the upper claim, the EOB shows large write-offs because the Plan Pay is $0.

Office rule overrides automatic posting: the upper claim includes partial dentures and surgical extractions. The poster is not allowed to independently write off these major procedures. Investigate the processing-policy reason, split the claim when appropriate, and contact the manager.

9. Plan Pay

This is the amount Medicaid actually paid for the line. $0 Plan Pay means no payment was made for that procedure on this EOB.

10. Processing Policies

Codes such as the processing-policy numbers shown on the right help explain why a line was processed a certain way. When payment is $0, identify the payer's actual reason before deciding what to do.

11. The Paid Claim at the Bottom

The bottom patient is a good example of normal payment:

  • D1110: $201 submitted → $40.81 allowed/paid → $160.19 write-off → $0 patient pay.
  • D0120: $103 submitted → $24 allowed/paid → $79 write-off → $0 patient pay.

This demonstrates an important rule: Plan % can show 100% even though the insurance payment is much lower than the office charge. “100%” means the payer is paying 100% of its allowed fee—not 100% of the office fee.

DentaQuest EOB — Reading Paid Procedure Lines

DentaQuest EOB example with paid claims
Tap / click the EOB to enlarge.

1. Read One Patient Claim at a Time

Each patient has a separate Claim Detail block. Do not mix procedure lines from one patient with the patient above or below.

2. Confirm Member and Plan

Look at Member #, Member Type, DOB, Group, Sub-Group, and Product. The EOB may distinguish Medicaid Adult vs. Medicaid Child products.

3. Confirm Provider and Office

Verify provider name/NPI and the service address or office reference. This becomes critical if a claim later denies because a provider is not enrolled or not in network.

4. Read the Financial Columns Together

Never look at Plan Pay by itself. Read Submitted → Approved/Allowed → Patient Pay → Writeoff → Plan Pay as one sequence.

Example — D1110

In the middle claim, D1110 shows approximately:

  • Submitted: $201
  • Allowed: $40.81
  • Patient Pay: $0
  • Writeoff: $160.19
  • Plan Pay: $40.81

$201 − $40.81 = $160.19 write-off. The patient is left with $0.

Example — D0330 Panoramic X-Ray

The claim shows a much higher office charge than the payer's allowed amount. That does not mean the X-ray is “partially covered.” It means the payer paid its allowed Medicaid fee and the difference is the contractual adjustment/write-off.

5. Plan %

A Plan % of 100% should not be interpreted as “insurance pays 100% of our office fee.” It means the payer is paying according to the covered/allowed amount shown on the EOB.

6. Total Row

The total row summarizes the claim. Use it as a final check after posting all individual lines. The sum of the line payments should match the claim total.

Ideal posting: each line's actual Plan Pay and write-off match the EOB and match Open Dental's expected amounts. If the procedure paid but Open Dental expected a different allowed amount/write-off, investigate a possible fee-schedule discrepancy.

UnitedHealthcare EOB — Different Layout, Same Logic

UnitedHealthcare Community Plan EOB example
Tap / click the EOB to enlarge.

1. Payer / Payee / Remittance Header

The top identifies UnitedHealthcare Community Plan - PA, the payee, and the remittance date. It may also show payment-method terminology such as FFS — Fee For Service.

2. Patient / Member Information

Look for Patient Name, Subscriber/Member ID, DOB, and Office Reference Number. Even though the layout is different from DentaQuest, you are confirming the same core information.

3. Provider / Plan Information

Confirm Provider Name, Provider NPI, Plan, Product, Encounter #, and Benefit Level. Benefit Level may show whether the claim processed in network.

4. DOS / Code / POS / Quantity

Each line shows the Date of Service, procedure code, place of service, and quantity.

5. Billed Amount

This is the office charge. It is equivalent to DentaQuest's Submitted amount.

6. Allowed Amount

This is the payer's recognized fee. It is the number you compare to Open Dental's expected insurance amount / fee schedule.

7. Payable Amount / Net Amount

When there are no copays, deductibles, other insurance, or other adjustments, the Payable Amount and Net Amount may match the Allowed Amount.

Example — D0150

The upper claim shows:

  • Billed: $126
  • Allowed: $25.40
  • Payable / Net: $25.40
  • Patient Pay: $0

The implied adjustment/write-off is $100.60 because $126 − $25.40 = $100.60.

8. Pay %

The EOB can show 100% while paying only the allowed fee. Again, 100% does not mean 100% of the office charge.

9. Copay / Coins / Deduct / Patient Pay / Other Insurance

These fields explain whether any amount was assigned elsewhere. For the paid examples shown, these values are $0.

10. EXC Code / Service Payment Notes

If a line is denied or adjusted, exception codes or service-payment notes may contain the reason. A blank/zero note on a normally paid line is not a denial.

11. No Separate “Writeoff” Column?

Some payer layouts do not show an explicit Writeoff column. You still compare the Billed Amount with the Allowed Amount and verify that Open Dental's write-off/fee schedule matches the payer's actual allowed fee.

Do not force Open Dental to match an old expectation. The actual EOB is the source for what the payer processed. If the EOB repeatedly pays a different allowed fee than Open Dental expects, report the fee-schedule discrepancy to the manager.

Reading an EOB — Comprehensive Quiz

12 questions. Read the financial fields carefully. Several answer choices are intentionally close. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

Key Medicaid Posting Terms

Write-Off

A write-off removes an amount from the patient's account so the patient no longer owes it.

Simple meaning: the balance “disappears” from the patient's account.

Billed Fee

Also called the office fee or office charge.

This is the amount the office originally charged for the procedure before insurance processes the claim.

Allowed Amount

Also called the in-network fee, approved amount, covered amount, or sometimes the amount people informally call the “insurance pays” amount.

This is the amount Medicaid recognizes for the procedure according to the plan's fee schedule and rules.

BLE — Benefit Limit Exception

BLE means Benefit Limit Exception.

It is an insurance approval for a procedure that would normally be outside the patient's standard benefit limits because of a qualifying medical exception.

When a BLE is required, it must be approved before the procedure is billed.

Prior Authorization

Prior authorization means the insurance approved a treatment before billing when that procedure requires approval.

The approval has a prior authorization number. That number may need to be attached to or entered with the procedure / claim.

Patient Balance

The amount still showing as owed by the patient after insurance payments and adjustments are posted.

For Medicaid claims, a remaining patient balance is usually a sign that the claim or posting needs to be reviewed.

Easy formula:
Billed Fee − Insurance Payment − Correct Write-Off / Adjustment = Patient Balance

What Happens When You Write Off?

A write-off makes the unpaid balance “disappear” from the patient's account.

Example

Office charge = $200. Medicaid pays $70. The remaining $130 needs to be handled according to the EOB.

If the correct write-off is $130, posting that write-off makes the patient's remaining balance $0.

Correct write-off: the proper unpaid amount is removed and the patient's account ends with the correct balance.
No write-off or an incorrect write-off: the patient may incorrectly show a balance after Medicaid has already processed the claim.
Important Medicaid rule: Medicaid patients typically should not have a balance after covered claims have been correctly processed and posted. Pennsylvania Medicaid generally does not allow balance billing of the patient for covered Medicaid services.
Exception: there are situations in which a patient may pay out of pocket—for example, when the patient agreed to pay for the treatment before the procedure was billed to Medicaid and the situation meets applicable Medicaid rules and office requirements.
Never create a patient balance simply because Medicaid did not pay the full office fee.
First determine why there is an unpaid amount.

What the Poster Is Allowed to Write Off

Poster MAY completely write off unpaid:

  • X-ray codes
  • Exam codes

If an exam or X-ray remains unpaid, the poster may completely write it off according to office policy.

Poster may NOT independently write off:

  • Root canal codes
  • Crown codes
  • Bridge codes
  • Extraction codes
  • Denture codes
  • Partial denture codes

Contact the office manager and ask for instructions.

Before contacting the manager:
Investigate the denial or underpayment clearly. Find the exact reason. Do not simply say, “Insurance didn't pay.”

Good Manager Message

“Crown on #19 denied. EOB says prior authorization required. I checked the account and there is no authorization number attached. Please advise whether this should be corrected and rebilled or handled another way.”

Provider & Insurance Terminology

Billing Provider

The provider or entity whose information is used to submit the claim to insurance for payment.

The billing provider information must match the payer's enrollment and credentialing records.

Treating Provider

The dentist or provider who actually performed the procedure.

The treating provider may be different from the billing provider.

NPI

NPI = National Provider Identifier.

This is the provider's or organization's unique healthcare identification number used on claims.

Tax ID / EIN / TIN

Tax ID, EIN, and TIN are terms used for the business tax identification number.

This identifies the business or billing entity for tax and insurance purposes.

Provider Medicaid ID #

The identification number assigned to a provider by Medicaid or a Medicaid plan.

A provider may have different enrollment or identification numbers depending on the Medicaid plan.

Subscriber

The person whose insurance coverage is being billed.

For Medicaid plans, the patient is always the subscriber.

The patient should not be entered as a dependent under a parent, spouse, or another person for Medicaid billing.

Primary Insurance

The insurance plan that must process the claim first.

If a Pennsylvania Medicaid patient also has another liable insurance plan, that other plan is generally billed before Medicaid.

Secondary Insurance

The insurance plan billed after the primary insurance has processed the claim.

In this training workflow, Pennsylvania Medicaid is treated as the secondary / payer-of-last-resort coverage when another liable plan exists.

COB — Coordination of Benefits

COB = Coordination of Benefits.

COB determines which insurance pays first and which insurance is secondary when a patient has more than one plan.

Important Medicaid rule: Patient = Subscriber.
Never set a Medicaid patient up as a dependent when billing the Medicaid plan.

Date & Authorization Terminology

DOS — Date of Service

DOS = Date of Service.

This is the exact date the dental procedure was performed.

Eligibility and authorization must be checked for the correct DOS—not only for today's date.

Authorization Expiration Date

The date after which a prior authorization is no longer valid.

A procedure may have been approved, but if treatment is completed after the authorization expiration date, the claim may deny.

Important: Always compare the procedure's DOS with the authorization approval period and expiration date.

Dental Anatomy & Surface Terminology

Maxillary

Upper jaw / upper arch.

Example: maxillary denture = upper denture.

Mandibular

Lower jaw / lower arch.

Example: mandibular denture = lower denture.

Arch

A full upper or lower row of teeth.

There are two main arches: maxillary and mandibular.

Quadrant

One quarter of the mouth.

The mouth is divided into four quadrants: upper right, upper left, lower right, lower left.

Impacted Tooth

A tooth that is blocked or has not fully erupted into the mouth.

Impacted teeth commonly appear in oral-surgery / extraction claims.

Periodontal Chart

A clinical chart containing gum and periodontal measurements.

Insurance may request it to support periodontal procedures such as SRP.

Tooth Surface Letters — Main Idea

Each letter represents a surface of the tooth. A filling code may involve one surface or several surfaces.

The more surface letters listed, the “bigger” the filling.

LetterSurface NameSimple Meaning
MMesialSide toward the middle/front center of the mouth
DDistalSide away from the middle/front center of the mouth
OOcclusalChewing surface of a back tooth
IIncisalBiting edge of a front tooth
BBuccalSurface toward the cheek
FFacialSurface toward the lips / face
LLingualSurface toward the tongue

Example

#21 BOL means tooth #21 has a filling involving the Buccal, Occlusal, and Lingual surfaces.

Three letters = a three-surface filling.

Insurance, X-Ray & Documentation Terminology

Narrative

A written explanation sent to insurance describing why a procedure was necessary.

It may support a claim, preauthorization, appeal, or documentation request.

Denial

Insurance processed the claim but did not approve payment for a procedure.

The denial reason must be investigated before deciding what to do next.

Appeal

A request asking insurance to reconsider a denial or payment decision.

An appeal may require X-rays, narratives, clinical records, or other supporting documentation.

Peer-to-Peer Review

A discussion between the treating dentist/provider and an insurance clinical reviewer.

It may be used when clinical clarification is needed for an authorization or denial.

Periapical X-Ray / PA

An intraoral dental X-ray that shows the tooth, root, and surrounding bone.

Often used to support root canal, extraction, crown, and other claims.

Intraoral Picture

A regular clinical photograph taken inside the patient's mouth.

It may document decay, a broken tooth, an existing restoration, or another visible condition.

Pre-Operative X-Ray

An X-ray taken before the procedure.

It documents the condition before treatment.

Post-Operative X-Ray

An X-ray taken after the procedure.

It documents the result after treatment.

Final X-Ray

The final radiograph documenting the completed treatment.

For some procedures, insurance may request a final X-ray before payment.

Timely Filing

The deadline set by the insurance plan for submitting a claim after the date of service.

If a claim is submitted after that deadline, insurance may deny it for timely filing.

Notify the office manager whenever you see this denial. It means the claim was not submitted to insurance on time and the billing workflow needs to be reviewed.

Reconciliation

The process of confirming that the total insurance payment entered in Open Dental matches the total EFT, check, or remittance amount.

Example: if the payment total is $3,842.17, Open Dental must also total $3,842.17 before the payment is finished.

If the totals do not match, something may be missing, duplicated, reversed, or entered incorrectly.

Posting reminder: When insurance asks for documentation, identify exactly what is missing—such as a PA X-ray, final X-ray, periodontal chart, narrative, or intraoral picture—before contacting the manager.

Terminology — Comprehensive Quiz

11 questions. These questions intentionally use close, realistic choices. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

What Can Affect Medicaid Coverage?

Frequency Limit

The patient already received the same or similar covered service too recently.

Age Limit

A benefit may be covered for one age group but not another.

Procedure Not Covered

The patient's specific plan does not include the procedure as a standard benefit.

Authorization / BLE

The procedure may require approval before it can be paid.

Common Denial / Underpayment Reasons

  • Frequency limit exceeded
  • Age limit
  • Procedure not covered by the plan
  • Prior authorization required but not obtained
  • Prior authorization number not attached to the claim
  • BLE required but not approved
  • Incorrect patient date of birth submitted
  • Incorrect patient name submitted
  • Incorrect Medicaid / insurance ID submitted
  • Wrong insurance company billed
  • Provider not in network with this plan
  • Incorrect procedure code billed
  • Duplicate procedure or duplicate claim
  • Claim submitted with missing or incorrect information
  • Timely filing — the claim was submitted after the insurance plan's filing deadline

If you see a timely-filing denial: notify the office manager. This means the claim was not submitted to insurance on time and requires management/billing review.

Common Frequency Rules to Recognize

These are common training rules, not a promise of coverage. Medicaid benefits can differ by payer, plan, age, eligibility category, and authorization. The actual EOB and payer rules always win.
ProcedureCommon Rule to RecognizePosting Thought
Routine CleaningUsually 1 every 6 monthsIf denied for frequency, check the EOB reason before moving anything to patient balance.
Periodic ExamUsually 1 every 6 monthsLook for frequency-limit denial.
Comprehensive ExamCommonly limited, often around 1 every 3 yearsVerify the member's exact benefit.
Panoramic X-ray / FMXCommonly limited, often around 1 every 3 yearsVerify frequency on EOB / payer portal.
Same Filling / Same SurfacesCommonly limited, often around 24 monthsExample: tooth #21 BOL repeated too soon may deny.
ExtractionGenerally covered when medically necessary and plan requirements are metCode and clinical situation matter.
Partial DentureMay be limited to once every 5 years or once per lifetimePrior approval / benefit-limit rules may apply.
Complete DentureMay be limited to once every 5 years or once per lifetimePrior approval / benefit-limit rules may apply.

Procedures Commonly Not Covered

Do not expect standard Medicaid payment for these procedures. If an EOB unexpectedly pays one, post the EOB exactly and bring unusual processing to a supervisor rather than overriding it.
  • Bone graft
  • Sinus lift / sinus augmentation
  • Dental implants
  • Implant-related procedures
  • Dental bridges
  • Invisalign / clear aligner treatment

Procedures That Commonly Need Approval

Do not assume these procedures will pay just because they were completed.

  • Root canals
  • Crowns
  • Complete dentures
  • Partial dentures
Posting habit: If one of these procedures denies, look for wording such as prior authorization required, authorization missing, benefit limit, BLE, frequency limit, or medical necessity.

Coverage — Comprehensive Quiz

10 questions. These questions intentionally use close, realistic choices. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

Ideal vs. Less-Than-Ideal Posting

IDEAL SITUATION

You start entering the claim and all of the following match:

  • Paid Amount on the EOB matches the expected insurance payment in Open Dental.
  • Write-Off Amount on the EOB matches the expected write-off in Open Dental.
  • The claim balances correctly without manual guessing or unusual adjustments.

This is the ideal situation. The goal is to get to this for most claims.

What This Usually Means

If the EOB and Open Dental expectations match, the patient's insurance plan and fee schedule are most likely set up correctly in Open Dental.

LESS-THAN-IDEAL SITUATION

Insurance paid for the procedure, but the write-off on the EOB does not match the write-off expected by Open Dental.

This almost always means one of the following:

  • The wrong fee schedule is selected for the patient in Open Dental.
  • The correct fee schedule is selected, but the fee amount entered in Open Dental is incorrect or outdated.
Do not treat every write-off mismatch as a one-time claim problem.
If insurance paid normally but Open Dental expected a different payment or write-off, investigate the fee schedule.

Correcting the Fee Schedule

What Is Happening?

If insurance consistently pays higher or lower than Open Dental expects, Open Dental may be using the wrong allowed fee.

This causes incorrect:

  • Expected insurance payment
  • Expected write-off
  • Claim estimates
  • Future patient-account expectations
Important: Rather than correcting only one specific claim, the underlying fee schedule amount may need to be corrected.
Poster should NOT independently change the fee schedule.
Contact the manager and notify them that you found a fee-schedule discrepancy.

Example — Cleaning Fee Schedule Is Too Low

We bill D1110 cleaning at $120.

Open Dental shows an expected write-off of $40.

That means Open Dental is expecting insurance to pay:

$120Office Charge
$40Expected Write-Off
$80Expected Payment
$0Expected Patient Balance

When we post the actual EOB, insurance pays $85 and the actual write-off is $35.

$120Office Charge
$35Actual Write-Off
$85Actual Payment
$0Patient Balance

What Does This Tell Us?

Insurance's allowed fee for D1110 is $85, but Open Dental is currently expecting only $80.

This means the fee schedule in Open Dental is likely $5 too low for this procedure.

Correct Action

  1. Post the claim according to the actual EOB.
  2. Recognize that the Open Dental expectation does not match.
  3. Document the procedure code, expected amount, actual paid amount, and actual write-off.
  4. Contact the manager and report the fee-schedule discrepancy.
  5. The manager can verify whether the patient's fee schedule is wrong or whether the fee schedule itself needs to be updated.

Good Message to the Manager

“D1110 billed at $120. Open Dental expected $80 payment and $40 write-off. EOB paid $85 with $35 write-off. It looks like the allowed fee in Open Dental is $5 lower than the payer's current fee. Please check whether the patient's fee schedule or the D1110 fee needs to be updated.”

Splitting the Claim

What Does “Split the Claim” Mean?

We split a claim when part of the claim was paid, but another procedure on the same claim was completely denied and we are not instructed to write that denied procedure off.

The goal is to post the paid procedures correctly while leaving the denied procedure open by itself for further review or rebilling.

When Do We Split?

Split the claim when:

  • One or more procedures were paid.
  • Another procedure on the same claim was completely denied.
  • The denied procedure may need to be corrected, appealed, or rebilled.
  • The poster is not authorized to write off that denied procedure.

Example

The same claim includes:

  • Exam — paid
  • X-rays — paid
  • Filling — paid
  • Extraction — denied

Correct Posting Workflow

  1. Split the claim.
  2. Post the insurance payment for the exam, X-rays, and filling.
  3. Post the correct write-offs for the procedures that were paid.
  4. Leave the extraction on a separate claim by itself.
  5. Do not write off the extraction.
  6. Investigate why the extraction was denied.
  7. Contact the office manager with the exact denial reason and ask for instructions.
Do not leave the entire original claim unpaid just because one procedure denied.
Post the procedures that were correctly paid and separate the procedure that still needs action.

Good Manager Message

“The claim paid for the exam, X-rays, and filling, but D7140 extraction was denied. I split the claim, posted the paid procedures, and left D7140 by itself. The EOB denial says missing documentation. Please advise whether to correct and rebill.”

Investigate Non-Payments — Start Here

Insurance Paid $0 — Do Not Guess

A $0 payment does not automatically mean the procedure should be written off or charged to the patient.

Your Job

  1. Read the exact denial reason.
  2. Check the patient's information in Open Dental.
  3. Check supporting images and insurance verification screenshots.
  4. Confirm eligibility and coverage when needed.
  5. Identify the most likely cause.
  6. Contact the manager with a clear recommendation.
Do not enter a $0 payment just to close the claim.

Patient Not Found — Information Mismatch

Denial

Insurance pays $0.

EOB says Patient Not Found, invalid member, subscriber not found, or similar wording.

Step 1 — Check Open Dental Images First

Open the patient's Images section and find the insurance verification screenshot or insurance card image.

Step 2 — Compare the Information

Compare the verification screenshot to the Open Dental Family Module.

  • Insurance ID
  • Insurance name / payer
  • Patient name
  • Patient date of birth

Look for a Discrepancy

Example: the insurance verification screenshot shows member ID ABC123456, but Open Dental was entered as ABC123465.

If You Find the Error

  1. Document what is incorrect.
  2. Do not write off the claim.
  3. Leave the claim open.
  4. Contact the manager.
  5. Advise to correct the information and rebill using the correct insurance ID or other corrected information.

Good Manager Message

“Abington office. Patient #1310. Claim denied as Patient Not Found. I checked the insurance verification screenshot in Images. The correct Medicaid ID is ABC123456, but Open Dental shows ABC123465. I advise correcting the ID and rebilling the claim.”

Patient Not Found — Check Eligibility on DOS

Situation

Insurance pays $0 and says Patient Not Found.

You check the insurance verification screenshot in Open Dental Images.

The insurance ID, payer, patient name, and DOB all match the Open Dental Family Module.

Possible Reason

The patient may not have been eligible on the Date of Service (DOS).

The patient may have been active when the office originally verified insurance, but coverage may have ended before the procedure was completed.

Route of Action

  1. Connect to the insurance portal.
  2. Search the patient using the correct information.
  3. Check eligibility specifically for the date of service.
  4. Do not rely only on today's eligibility status.

If the Patient Shows INACTIVE on the DOS

Do not independently close the claim or transfer the balance.

Notify the manager and request approval.

Under office workflow, these claims may ultimately be closed and the patient may accumulate a balance if the patient truly had no active Medicaid coverage on the DOS. Manager approval is required before taking that action.

Good Manager Message

“Wyncote office. Patient #2450. Claim denied as Patient Not Found. Insurance verification image matches the Open Dental Family Module. I checked the payer portal for the DOS and the patient shows inactive on that date. Please review and approve the next step before the claim is closed or any patient balance is created.”

Crown Not Paid — Check Preauthorization

Situation

You see D2740 crown billed, but the EOB shows $0 payment.

Office Medicaid Rule: All Medicaid crowns must have an approval / prior authorization before billing, regardless of patient age.

Step 1 — Check Open Dental Images

  1. Open the patient's Images.
  2. Go to the Preauthorization folder.
  3. Look for an approval for the crown.

Step 2 — If You Find an Approval

Check:

  • The authorization expiration date
  • The approved procedure / tooth
  • The preauthorization ID, which may also be called a Claim ID

Copy the approval / preauthorization number.

If the Approval Is Expired

Do not close the claim.

Notify the manager that the approval is expired and advise that the approval be resubmitted / renewed and the claim rebilled after the new approval is obtained.

If the Approval Is NOT Expired

Advise the manager to rebill the crown with the approval number attached again.

Sometimes Medicaid may deny even when approval exists because the approval number was missed, not linked correctly, or not recognized clearly by the claims system.

If No Approval Is Found

Notify the manager that the crown appears to have been billed without prior approval.

Do not write off the crown and do not close the claim without manager instructions.

Example Message — Approval Found and Active

“Abington office. Patient #1310. D2740 crown on #19 paid $0. I checked Images → Preauthorization and found approval #123456. The approval is still active and not expired. I advise rebilling the crown with approval #123456 attached again.”

Example Message — Approval Expired

“Montgomery office. Patient #2450. D2740 crown paid $0. I found the crown approval in the Preauthorization folder, but the authorization expired before the DOS. I left the claim open. I advise resubmitting the approval and rebilling after a new approval is obtained.”

Example Message — No Approval Found

“Wyncote office. Patient #3821. D2740 crown paid $0. I checked Images → Preauthorization and did not find an approval for this crown. It appears the crown was billed without prior approval. I left the claim open. Please review.”

Investigate Non-Payments — Comprehensive Quiz

13 questions. These questions intentionally use close, realistic choices. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

Example — Wrong Patient Information

Situation

We bill a covered procedure. Insurance pays $0.

The EOB says: patient not found, invalid member ID, subscriber mismatch, or eligibility problem.

What to Check

  • Patient's name spelling
  • Date of birth
  • Medicaid / insurance ID
  • Correct subscriber information
  • Correct insurance plan billed
  • Eligibility on the date of service
Do not write off the procedure simply because insurance paid $0.
Correct action: identify the incorrect information, correct it, and follow rebilling instructions.

Example — Cleaning Frequency Denial

Situation

We bill D1110 at $120.

Insurance pays $0.

EOB says the service exceeds the frequency limit.

Investigate

  • Was a cleaning done less than 6 months ago in our office?
  • Was a cleaning done at another dental office?
  • Was the previous cleaning posted under another provider or location?
  • Is the payer applying a different frequency rule?
Do not leave the $120 as patient responsibility.
Correct action: split the claim if needed, investigate the reason, and contact the manager for instructions.

Example — Adult Cleaning Billed for a Child

Situation

Patient is 11 years old.

We billed D1110 — adult cleaning at $120.

Insurance pays $0.

Possible reason: the patient's age requires a child prophylaxis code.
Correct action: investigate whether the service should have been billed as D1120 — child cleaning. Correct and rebill according to office instructions.
Do not simply write off the $120 without checking the coding issue.

Example — X-Ray Pays Nothing

Situation

We bill D0210 FMX at $70.

Insurance pays $0.

Office posting rule: write off the full $70.
Final patient balance for this procedure = $0.

Example — X-Ray Pays Partially

Situation

We bill D0210 FMX at $70.

Insurance pays $30.

Post: $30 insurance payment.
Write off: $40.
$70 billed − $30 paid − $40 write-off = $0 patient balance.

Example — Exam Pays $0

Situation

We bill D0120, D0140, or D0150.

Insurance pays $0.

Office posting rule: the poster may completely write off unpaid exam codes.
The patient should not be left with a balance for the unpaid exam under this office posting policy.

Example — Crown Pays $0 With Approval

Situation

We bill D2740 crown at $800.

A valid prior authorization number is attached.

Insurance pays $0.

Do NOT write off the crown.
Do NOT post a fake or $0 payment just to close the claim.
Correct action:
  1. Split the claim.
  2. Leave the crown procedure unpaid.
  3. Investigate the exact denial reason.
  4. Verify the approval number was attached correctly.
  5. Contact the office manager with your findings.

Example — Crown Missing Authorization

Situation

We bill D2740 at $800.

Insurance pays $0.

EOB says prior authorization required.

Investigate Before Calling the Manager

  • Was authorization actually obtained?
  • Is there an approval number in the patient's chart?
  • Was the approval number attached to the procedure / claim?
  • Does the authorization match the tooth and code billed?
Poster may not write off the crown.

Example — Root Canal Approved With BLE

Situation

The patient is over age 20.

Root canal treatment is typically not covered under the patient's standard benefit.

The office submits a prior authorization with:

  • A completed BLE — Benefit Limit Exception form
  • A medical letter confirming that the patient has diabetes
  • Supporting dental records and documentation as required

Insurance Approves the Exception

Insurance determines that the root canal is medically necessary and approves a Benefit Limit Exception.

The office receives an approval / prior authorization number.

What Happens Next?

  1. The root canal is completed.
  2. The root canal claim is submitted.
  3. The approval number is attached to or entered with the claim.
  4. Medicaid should process the procedure according to the approved exception.

But Sometimes Medicaid Still Denies It

The payer may miss the approval number, the approval may not be clearly registered in the claims system, or the claim may not link correctly to the authorization.

Regardless of the denial reason:
Do not independently write off the root canal.
Split the claim if needed and contact the office manager.

What to Tell the Manager

“Root canal was approved through BLE and billed with authorization number, but Medicaid denied it. I split the claim and left the root canal unpaid. Please review the denial and advise whether it should be corrected and rebilled.”

Example — Root Canal Denied

Situation

We bill D3310, D3320, or D3330.

Insurance pays $0.

Investigate

  • Was prior authorization required?
  • Was the authorization number attached?
  • Was the correct tooth number billed?
  • Was the correct root canal code billed?
  • Is there an age or benefit limitation?
  • Did insurance request documentation?
Do not write off a root canal independently.
Split the claim if needed, document the denial reason, and contact the manager for instructions.

Example — Extraction Denied

Situation

We bill D7140 or D7210.

Insurance pays $0.

Possible Reasons

  • Incorrect extraction code
  • Wrong tooth number
  • Missing X-ray or documentation
  • Claim submitted incorrectly
  • Eligibility problem
  • Duplicate claim
Poster may not independently write off extraction codes.
Investigate the reason first, then contact the office manager.

Example — Denture or Partial Denied

Situation

We bill D5110, D5120, D5211, D5212, D5213, or D5214.

Insurance pays $0.

Possible Reasons

  • Prior authorization missing
  • Authorization number not attached
  • Frequency / lifetime benefit limit
  • BLE may be required
  • Wrong arch or incorrect code
  • Eligibility issue
Poster may not independently write off dentures or partial dentures.
Investigate completely and then contact the manager with the exact denial reason.

Example — Wrong Insurance Billed

Situation

A claim was sent to the wrong Medicaid dental payer.

Insurance pays $0 or says the patient is not eligible.

Example

The account shows one plan, but the patient's active dental coverage for the date of service is through another payer.

Correct action: verify eligibility and the correct payer, correct the insurance information, and rebill according to office procedure.
Do not write off the procedure before checking whether the wrong insurance was billed.

Example — Partial Payment on Major Procedure

Situation

We bill a crown, root canal, extraction, denture, or partial denture.

Insurance pays some money, but a large balance remains.

Do not automatically write off the remaining balance.
Do not automatically transfer the remaining balance to the patient.

Investigate First

  • What was the billed amount?
  • What was the allowed amount?
  • What did insurance pay?
  • What adjustment code is on the EOB?
  • Was prior authorization involved?
  • Was another procedure bundled or denied?
Contact the manager with the exact numbers and denial / adjustment reason.

Example — How to Ask the Manager

Do NOT send this:

“Insurance didn't pay. What should I do?”

Send this instead:

“Abington office. Patient #1310. D2740 crown on #19 billed at $800. Insurance paid $0. EOB denial says prior authorization missing. I checked the patient's account and found authorization #123456, but it was not attached to the claim. I split the claim and left the crown unpaid. I advise to correct and rebill.”

A good message tells the manager:
  • Procedure and code
  • Tooth / arch when applicable
  • Billed amount
  • Amount insurance paid
  • Exact denial reason
  • What you already investigated
  • What action you already took

Example — Provider Is Out of Network

Situation

The claim is submitted correctly, but insurance pays $0.

The EOB says the provider is not in network with this plan or the provider is not eligible to bill this Medicaid plan.

Possible Solution

The claim may need to be rebilled under another properly enrolled / credentialed provider when appropriate and permitted.

Do not enter a $0 payment.
Do not write off the procedure.
Leave the claim as is.

Correct Action

  1. Confirm the exact denial reason on the EOB.
  2. Verify which provider was billed.
  3. Note the office and patient number.
  4. Leave the denied claim open.
  5. Contact the manager and explain that the payer says the provider is out of network.
  6. Ask the manager whether the claim should be corrected and rebilled under another eligible provider.

Example Message to the Manager

“Abington office. Patient #1310. Claim paid $0. EOB says the treating/billing provider is not in network with this Medicaid plan. I left the claim as is and did not enter a $0 payment. Possible solution is to rebill under another eligible provider. Please review.”

Example — D9110 Palliative Treatment Denied

Situation

We bill D9110 — palliative treatment of dental pain, but Medicaid pays $0.

Important Office Medicaid Rule

D9110 may be billed with X-rays, but it should not be billed on the same claim with another treatment procedure.

Examples of procedures that may cause D9110 to deny when billed on the same claim include:

  • Exam
  • Filling
  • Root canal
  • Crown
  • Extraction
  • Other treatment procedures

Step 1 — Look at the Entire Claim

Do not look only at D9110. Check every procedure billed on the same claim.

If D9110 Was Denied Because Another Procedure Was Billed With It

If the EOB or claim review shows that D9110 denied because another non-X-ray procedure was billed on the same claim, write off D9110.

Do not leave a patient balance for D9110 in this situation.

If D9110 Was Denied for Another Reason

Investigate the denial.

Possible issues may include eligibility, patient information, payer information, provider enrollment, claim submission information, or another denial reason.

Example 1 — Write Off D9110

The claim contains:

  • D0220 X-ray
  • D9110 palliative treatment
  • D2392 filling

Insurance pays the X-ray and filling but denies D9110 because another treatment procedure was billed.

Action: Write off D9110.

Example 2 — Investigate D9110

The claim contains only:

  • D0220 X-ray
  • D9110 palliative treatment

D9110 still pays $0.

Action: Do not automatically write it off. Investigate the denial reason.

Easy rule to remember:
D9110 denied because it was billed with another treatment procedure → WRITE OFF D9110.
D9110 denied for another reason → INVESTIGATE.

Examples — Comprehensive Quiz

13 questions. These questions intentionally use close, realistic choices. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

Main Procedure Categories

Preventive / Diagnostic

Exams, cleanings, fluoride, caries-risk assessment, oral hygiene instructions, X-rays.

Restorative

Fillings and other procedures that restore damaged teeth.

Surgical

Extractions and other oral-surgery procedures.

Prosthetics

Complete dentures and partial dentures.

Endodontics

Root canal treatment and related procedures.

Common Exam Codes

CodeProcedureRemember
D0140Limited oral evaluation — problem focusedOften used for emergency / specific-problem visits.
D0150Comprehensive oral evaluationMore extensive new / comprehensive exam.
D0120Periodic oral evaluationRoutine recall exam.

Cleaning & Preventive Codes

CodeProcedure
D1110Adult prophylaxis / cleaning
D1120Child prophylaxis / cleaning
D1206Topical fluoride varnish
D1208Topical fluoride application, excluding varnish
D0601Caries risk assessment — low risk
D0602Caries risk assessment — moderate risk
D0603Caries risk assessment — high risk
D1330Oral hygiene instructions

Common X-Ray Codes

CodeProcedure
D0220First intraoral periapical image
D0230Each additional intraoral periapical image
D0272Two bitewing images
D0274Four bitewing images
D0330Panoramic radiographic image
D0210Complete series of intraoral radiographic images / FMX

Common Filling Codes

Anterior Composite Fillings

CodeSurfaces
D23301 surface — anterior
D23312 surfaces — anterior
D23323 surfaces — anterior
D23354 or more surfaces / incisal angle — anterior

Posterior Composite Fillings

CodeSurfaces
D23911 surface — posterior
D23922 surfaces — posterior
D23933 surfaces — posterior
D23944 or more surfaces — posterior

Amalgam Fillings

CodeSurfaces
D21401 surface
D21502 surfaces
D21603 surfaces
D21614 or more surfaces

Frequency Example

Claim shows #21 BOL. If the patient had the same tooth and same surfaces restored recently, Medicaid may deny it because of a frequency limitation.

Do not automatically charge the patient. Read the denial reason and follow the payer's rules.

Common Extraction Codes

CodeProcedure
D7140Extraction of erupted tooth / exposed root
D7210Surgical extraction of erupted tooth
D7220–D7241Impacted-tooth extraction family — exact code depends on clinical presentation
D7250Removal of residual tooth roots requiring a cutting procedure
Never change an extraction code simply because another code would pay better. Post the procedure code that was actually billed and processed.

Partial Denture Codes

CodeProcedure
D5211Maxillary acrylic partial denture
D5212Mandibular acrylic partial denture
D5213Maxillary cast-metal-framework partial denture
D5214Mandibular cast-metal-framework partial denture

Complete Denture Codes

CodeProcedure
D5110Complete denture — maxillary / upper
D5120Complete denture — mandibular / lower

The 6 Questions to Ask When Reading a Medicaid EOB

  1. What procedure code was billed?
  2. Was it paid, denied, or reduced?
  3. What amount was allowed?
  4. What amount did Medicaid actually pay?
  5. What adjustment / denial reason is shown?
  6. Does the EOB show any patient responsibility?
Never create patient responsibility just because insurance did not pay.
A Medicaid denial may be a provider adjustment, frequency issue, authorization issue, non-covered service, coding issue, or another payer-processing issue.

Common Crown Codes

CodeProcedurePosting Reminder
D2740Crown — porcelain / ceramicOften requires prior authorization for Medicaid.
D2750Crown — porcelain fused to high noble metalCheck authorization and EOB reason.
D2751Crown — porcelain fused to base metalCheck authorization and EOB reason.
D2752Crown — porcelain fused to noble metalCheck authorization and EOB reason.
D2950Core buildupMay process separately or deny depending on plan rules.
D2954Prefabricated post and core in addition to crownCheck coverage, authorization, and EOB reason if denied.
Poster may not independently write off crown codes. Investigate and contact the office manager.

Common Bridge Codes

Medicaid usually does not cover bridges. If a bridge-related code appears on a Medicaid EOB, investigate carefully and follow manager instructions.
CodeProcedureSimple Meaning
D6240Pontic — porcelain fused to high noble metalFake tooth in the bridge
D6241Pontic — porcelain fused to base metalFake tooth in the bridge
D6242Pontic — porcelain fused to noble metalFake tooth in the bridge
D6245Pontic — porcelain / ceramicFake tooth in the bridge
D6740Retainer crown — porcelain / ceramicCrown that supports the bridge
D6750Retainer crown — porcelain fused to high noble metalCrown that supports the bridge
D6751Retainer crown — porcelain fused to base metalCrown that supports the bridge
D6752Retainer crown — porcelain fused to noble metalCrown that supports the bridge
Poster may not independently write off bridge codes. Contact the office manager.

Root Canal, Pulpotomy & Palliative Codes

CodeProcedurePosting Reminder
D3310Root canal — anterior toothUsually needs approval / documentation review.
D3320Root canal — premolar toothUsually needs approval / documentation review.
D3330Root canal — molar toothUsually needs approval / documentation review.
D3220Therapeutic pulpotomyCheck age, tooth type, and payer rules.
D9110Palliative treatment of dental pain — minor procedureUsed for emergency pain relief; check EOB reason if denied.
Poster may not independently write off root canal codes. Investigate the denial and contact the office manager.

Periodontal Codes

CodeProcedureSimple Meaning
D4341 Periodontal scaling and root planing — four or more teeth per quadrant Deep cleaning / SRP for 4+ teeth in one quadrant
D4342 Periodontal scaling and root planing — one to three teeth per quadrant Deep cleaning / SRP for 1–3 teeth in one quadrant
D4910 Periodontal maintenance Maintenance cleaning after periodontal treatment
D4341 vs. D4342:
The difference is the number of teeth treated in the quadrant:
  • D4341 = 4 or more teeth
  • D4342 = 1–3 teeth
D4910 is not the same as a regular D1110 cleaning.
Periodontal maintenance is used after periodontal therapy and may have different benefit and frequency limitations.
If SRP or periodontal maintenance is denied or underpaid, do not guess. Check the denial reason, frequency, periodontal history, documentation requirements, and payer rules before deciding how to post.

Codes — Comprehensive Quiz

27 questions. These questions intentionally use close, realistic choices. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

Golden Posting Rules

RULE 1: Follow the EOB.
RULE 2: Do not guess.
RULE 3: Do not treat Medicaid like PPO percentage coverage.
RULE 4: Do not automatically move an unpaid amount to the patient.
RULE 5: Know the common procedure codes so the EOB makes sense.
RULE 6: If the denial does not make sense, flag it for review instead of forcing the account to balance.

Rejected vs. Denied vs. Corrected vs. Rebill vs. Appeal

These Terms Are NOT Interchangeable

Before taking action, identify what actually happened to the claim. A rejected claim, a denied claim, a corrected claim, a rebill, and an appeal are different situations.

Rejected Claim

The claim was not accepted or fully processed because of a submission, enrollment, or information problem.

Examples: invalid member information, wrong payer, provider enrollment problem, missing required claim information.

Denied Claim

The payer processed the claim but decided not to pay a procedure.

The denial reason determines whether the next step is correction, rebill, reconsideration, appeal, write-off, or manager/biller review.

Corrected Claim

A claim submitted again using the payer's corrected-claim process because information on the previously processed claim needs to be changed.

Do not assume every denial should be sent as a corrected claim.

Rebill / Resubmit

Submit the claim again after fixing missing or incorrect information or adding required information.

During the learning period, investigate first, create a task, and contact the biller/manager for resubmission instructions.

Reconsideration / Adjustment

A request asking the payer to reprocess or adjust a claim because the payer appears to have processed it incorrectly.

This can sometimes be handled by calling the insurance company.

Appeal

A formal request asking the payer to reconsider a denial, especially when the office disagrees with a clinical or benefit decision.

Appeals may require a narrative, X-rays, charting, medical documentation, or other records.

Learning-period rule: When the next step requires the biller, create an Open Dental task and also communicate with the biller by Google Chat, phone, or another approved method.

Claim Action Decision Tree

Wrong or missing information
Example: wrong member ID, missing authorization number, wrong payer.
CORRECT / REBILL
Correct the information. Create an Open Dental task and contact the manager or biller to resubmit the claim.
Do not close the claim.
Payer processed incorrectly
Example: approval exists, but payer did not recognize it.
RECONSIDERATION / ADJUSTMENT
This can sometimes be handled by calling insurance. During your learning period, create a task and contact the biller for instructions.
Clinical denial the office disagrees with
Example: payer says treatment was not medically necessary.
APPEAL
Create a task and contact the biller for instructions. Supporting documentation may be required.
Part of the claim unpaid
Not an unpaid X-ray, exam, or D9110 situation that the manual specifically authorizes you to write off.
SPLIT THE CLAIM
Enter the paid procedures. Leave the unpaid procedure by itself. Create a task and tell the biller exactly what remains unpaid.
Office accepts the denial
No further rebill, reconsideration, or appeal is being pursued.
WRITE OFF ONLY IF AUTHORIZED
Follow the office write-off rules. Major procedures still require manager/biller authorization before you write them off.
Never close a claim just because you sent a message or created a task. The claim stays open until the appropriate correction, resubmission, decision, or authorized write-off is completed.

Claim Action Examples

Example 1 — Incorrect Insurance ID

Claim says Patient Not Found. You compare the insurance verification image to the Family Module and discover the member ID was entered incorrectly.

Action: identify the correct ID → create an Open Dental task → contact the biller/manager → advise correcting and resubmitting → leave the claim open.

Example 2 — Payer Missed an Active Authorization

D2740 has a valid, unexpired approval, but Medicaid denied the crown as if no approval existed.

Action: this may be a payer-processing issue → create a task → contact the biller → payer may need a reconsideration/adjustment or the claim may need to be resubmitted with the approval number again.

Example 3 — Clinical Denial

A payer reviews documentation and denies a procedure as not medically necessary, but the dentist disagrees.

Action: do not simply rebill the same claim repeatedly → create a task → contact the biller → an appeal or peer-to-peer review may be appropriate.

Example 4 — Partial Claim Payment

Exam, X-ray, and filling pay. Extraction pays $0.

Action: split the extraction from the paid procedures → post the paid lines → leave the extraction open → investigate → create a task → notify the biller.

Example 5 — Authorized Write-Off

An X-ray denies and the office posting policy authorizes the poster to write off unpaid X-ray codes.

Action: post/write off according to policy. A biller task is not required merely to obtain permission the poster already has, unless another claim issue still requires follow-up.

Posting Rules — Comprehensive Quiz

14 questions. These questions intentionally use close, realistic choices. A section score of 80% or higher is required for certificate eligibility. Wrong answers will not reveal the correct answer. Use Retake Quiz to reset the section and try again until you pass.

Posting Checklist Before You Close an EOB

Final Check

Before you consider an EOB finished, quickly confirm every item below.

Payment matches the EOB
The insurance payment entered for each procedure matches what the payer actually paid.
Write-offs match
The write-offs / adjustments match the EOB and make sense under the patient's fee schedule.
Denied procedures were investigated
You understand why every unpaid procedure was denied before closing or escalating it.
Major denials were separated when necessary
If part of the claim paid and a major procedure remained unpaid, the claim was split when appropriate.
Patient balance was reviewed
A Medicaid patient was not accidentally left with a balance that should have been adjusted or investigated.
Fee-schedule discrepancies were reported
If Open Dental expected a different allowed amount or write-off, the manager was notified.
Manager / biller requests were sent
Any correction, rebill, appeal, reconsideration, provider issue, or other follow-up was clearly communicated.
Follow-up was documented
Open Dental tasks were created when biller follow-up is required, in addition to Google Chat / phone communication when appropriate.
Total EOB payment reconciles
Total insurance payment entered in Open Dental exactly equals the EFT / check / remittance total.
If one of these items is not complete, the EOB is not finished.
Do not force a claim to close just to remove it from your list.

Training Certificate

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SMILE CENTER INTERNAL TRAINING
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Medicaid EOB Posting Training
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Trainee Name
completed the Smile Center Medicaid EOB Posting self-study manual and passed all section knowledge checks.
Completion Date
Overall Quiz Score
Smile Center Internal Training
Self-Study Completion
Internal training certificate only. This document is self-generated from the Smile Center training manual and is not a professional license, state credential, Medicaid certification, or third-party accreditation.
Enlarged EOB
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