How to Start Pediatric Billing for a New Medical Practice

Starting a new pediatric practice means setting up your billing before you see your first patient. The core work covers your tax ID, NPI numbers, payer credentialing, insurance eligibility verification, and clean coding rules for well-child visits, vaccines, and sick visits. Get the first 90 days right and your clean claim rate stays above 95% from day one. 

That is why setting up a new pediatric practice takes more than choosing CPT codes. You need a pediatric medical billing workflow that starts before the appointment and continues through claim submission, payment posting, and denial follow-up.

Here’s how to build it from the start.

What are the Initial Steps for Pediatric Billing Setup

Pediatric billing setup should begin before your first patient visit. Get the practice foundation in place first, then move into payer enrollment, coding, and EHR workflows.

• Business entity: LLC, PC, or PLLC based on your state's requirements

• Tax setup: EIN from the IRS and any required state tax registration

• NPI setup: Group NPI (Type 2) for the practice and individual NPIs (Type 1) for each provider

• CAQH: Completed and regularly attested CAQH ProView profiles for each provider

• Malpractice coverage: Current coverage that meets applicable payer requirements

Starting payer applications before these details are ready can lead to avoidable delays. Mismatched NPI information, incomplete CAQH data, or outdated malpractice documentation can cause applications to be returned or delayed.

Build the foundation first. Then start credentialing and payer enrollment.

How Long does Pediatric Credentialing Take for a New Practice

Start credentialing as early as possible. You cannot control how quickly each payer processes your application.

Commercial plans may move faster than Medicaid in one market, while a closed commercial panel can take even longer in another. Application errors, missing documents, contracting delays, and state-specific requirements can all add time to the process.

For planning, treat these ranges as working estimates and not as guaranteed approval dates:

Payer type	Planning range	What can affect it
Commercial plans	60 to 120 days	CAQH, contracting, panel availability
Medicaid fee-for-service	90 to 180 days	State enrollment and screening
Medicaid MCOs	90 to 150 days	Separate MCO enrollment requirements
TRICARE	45 to 90 days	Provider and regional contractor rules

Do not wait for one payer to finish before starting the next. Commercial, Medicaid, and applicable managed care applications can often run in parallel.

Also, track more than just the submission date. Your credentialing sheet should show when each application was submitted, its current status, any outstanding information, contract status, and the provider's confirmed effective date.

Can a New Pediatric Practice Bill Insurance Before Credentialing Is Complete 

No, a new pediatric practice cannot bill insurance in-network before credentialing is complete. Any sessions delivered before the effective date on the contract either pay as out-of-network, pay nothing, or get clawed back on a later audit.

Three narrow workarounds exist:

• Some commercial payers allow retroactive effective dates if you request them at submission, usually 30 to 90 days back

• A few Medicaid MCOs run under 42 CFR 438.602, which lets them write a network agreement while state screening finishes, up to 120 days

• Locum tenens billing lets a credentialed provider cover for a non-credentialed hire for up to 60 consecutive days under narrow rules

Before billing, confirm the provider's network status, contract, and effective date with the payer. 

Which Pediatric CPT Codes Should You Know

New pediatric practices should get comfortable with preventive visits, problem-oriented E/M services, vaccine billing, and common screening services first.

You do not need every pediatric code memorized. Your billing team does need to understand the code families that show up again and again in your schedule.

Code or code family	Common pediatric use	Billing point to watch
99381–99385	New-patient preventive visits	Select by patient age
99391–99395	Established-patient preventive visits	Select by patient age
99213 / 99214	Established-patient sick visits	Level must be supported by E/M rules
90460 / 90461	Pediatric immunization administration with qualifying counseling	Counseling and component rules matter
90471 / 90472	Immunization administration	Do not automatically substitute for 90460
90707	MMR vaccine product	Product and administration are billed separately
96110	Developmental screening	Documentation and payer coverage matter

One of the areas practices get wrong most often is 99213 vs 99214 Pediatric billing. Do not pick 99214 just because the child has more than one complaint. The E/M level has to be supported under the current medical decision-making or time rules.

Well-Child Visit Billing also needs a clear workflow. A routine preventive visit can turn into a preventive visit plus a separate problem-oriented service when the pediatrician evaluates and manages an extra condition during the same visit.

That is where Modifier 25 comes in.

If a child comes in for a well visit and the pediatrician also performs a significant, separately identifiable problem-oriented E/M service, Modifier 25 may be appropriate on the problem E/M code. Do not add it just because a minor concern was mentioned in passing.

The documentation has to show the separate work.

How do Pediatric Practices Bill Telehealth Visits Correctly

Pediatric telehealth billing can vary by payer, so you cannot use the same rules for every claim.

For many payers, office E/M codes such as 99202–99215 can be used for qualifying telehealth visits. Some payers may also use dedicated telemedicine E/M codes, so check the payer's current policy before billing.

Place of service is also important. POS 10 is used when the patient is at home, while POS 02 is used when the patient is somewhere other than home.

Depending on the payer and service, Modifier 95 may be required for synchronous audio-video visits, while Modifier 93 can apply to qualifying audio-only services.

For a new pediatric practice, keep a simple payer matrix showing which telehealth CPT codes are covered, whether audio-video or audio-only visits are allowed, which modifier and POS are required, and whether the state Medicaid plan has additional rules.

Do not copy one payer's telehealth rules across your entire billing system. Check the payer's current policy before submitting claims and review your setup when coding and fee schedule rules change.

How should a New Pediatric Practice Build its Pediatric Billing Workflow

A pediatric billing workflow should follow the patient from scheduling through final payment. Every person on the team needs to know what happens at their step and what has to move to the next one.

A practical workflow has eight main steps:

1. Patient scheduling and demographic capture

2. Insurance eligibility verification before the visit

3. Prior authorization check when the planned service needs one

4. Visit documentation with CPT and ICD-10 coding

5. Charge entry and claim scrubbing

6. Clean claim submission

7. Payment posting and ERA reconciliation

8. Pediatric AR follow-up on unpaid and denied claims

The first three steps matter more than they look. A claim can be coded correctly and still deny because the child's coverage changed, the wrong payer was listed as primary, or an authorization was missing.

Coordination of benefits is a particular pain point in pediatrics. A child may have coverage through both parents, and a commercial plan plus Medicaid. Your front desk needs a process for sorting primary and secondary payer up front, not after a claim denies.

Practices that use outsourced pediatric billing services can also have these workflows built around their payer mix, instead of hiring a biller and asking them to invent every process from scratch.

FAQ

1.What causes most pediatric claims to be denied?

Common reasons include coordination of benefits issues, missing Modifier 25 on same-day sick and well visits, incorrect vaccine administration codes such as 90460 vs. 90471, and checking eligibility too early. 

2.How Should a New Practice Handle Medicaid, EPSDT, and VFC Billing? 

Start with Medicaid and MCO enrollment, then set up your EPSDT workflow and enroll in the Vaccines for Children program. Keep VFC and private vaccines separate and follow your state’s billing rules. 

3. Can a pediatric practice bill a sick visit and well-child visit on the same date?

Yes, when the sick visit is separately identifiable from the well-child visit. Modifier 25 may be added to the problem-oriented E/M code when the documentation and payer rules support both services.