Pediatric Billing & Coding Guide 2026: CPT Codes & Modifiers

Pediatrics billing is deceptively complex. A well-child visit looks straightforward on the schedule, but it often involves multiple separately billable services: the preventive E/M, a developmental screening tool, a behavioral health screen, vaccine administration for multiple antigens, and potentially a problem-focused E/M if a new issue is addressed on the same day. Getting each of these coded correctly, in the right combination, with the right modifiers, determines whether your practice captures 100% of the revenue it earned or leaves a meaningful percentage on the table.This guide covers the CPT codes and billing rules for every major pediatric service type in 2026, from newborn care to adolescent preventive services, with the documentation standards and denial prevention strategies your billing team needs.

Well-Child (Preventive) Visit Codes

Preventive medicine evaluation and management codes (99381–99395) are selected based on the patient’s age and whether the patient is new or established. These are not E/M codes based on complexity, they are time-and-age-based codes for comprehensive preventive assessments.

New Patient Preventive Visits

• 99381, Infant (younger than 1 year)
• 99382, Early childhood (age 1–4)
• 99383, Late childhood (age 5–11)
• 99384, Adolescent (age 12–17)
• 99385, Age 18–39 (for practices serving young adults)

 

Established Patient Preventive Visits

• 99391, Infant (younger than 1 year)
• 99392, Early childhood (age 1–4)
• 99393, Late childhood (age 5–11)
• 99394, Adolescent (age 12–17)

 The preventive visit code requires a comprehensive age-appropriate history, physical exam, anticipatory guidance, and any required screening tests. Frequency limitations apply, most payers cover one well-child visit per year (with some flexibility for infants in the first year of life, where AAP recommends visits at 1, 2, 4, 6, 9, and 12 months).

Billing a Problem-Focused E/M on the Same Day as a Well-Child Visit

This is the most common billing question in pediatrics, and the most commonly miscoded situation. When a patient presents for a well-child visit and also has a new or existing problem that requires a separately documented evaluation, you may bill both the preventive visit and a problem-focused E/M on the same day. Rules:

• The problem must be documented separately from the preventive examination, it cannot simply be mentioned in the well-child note.
• The problem-focused E/M (99212–99215) must have its own MDM documentation supporting the level billed.
• Modifier -25 must be appended to the problem-focused E/M code to indicate it is a significant, separately identifiable service.
• The diagnosis code on the problem-focused E/M must be different from the well-child diagnosis (Z00.129 or age-appropriate Z00 code).

 Most common error: Billing 99213-25 with the same Z00 diagnosis as the well-child visit. The problem-focused E/M must have a distinct, problem-specific diagnosis code.

Vaccine Administration Billing

Vaccine administration is billed separately from the vaccine product itself. Administration codes are based on the route of administration and whether counseling was provided:

• 90460, Immunization administration through 18 years of age via any route, first or only vaccine component, with counseling by physician or other qualified health professional
• 90461, Each additional vaccine component (add-on to 90460)
• 90471, Immunization administration, first injection, without counseling
• 90472, Each additional injection without counseling (add-on)
• 90473, Immunization administration, first intranasal/oral
• 90474, Each additional intranasal/oral

 Critical billing rule: 90460 and 90461 require documented counseling by a physician or QHP, not just nursing staff. If your nurses administer vaccines without physician counseling, bill 90471/90472 instead. Billing 90460 without documented physician counseling is an overcoding error.The vaccine product itself is billed with the appropriate CPT vaccine code (e.g., 90700 for DTaP, 90744 for hepatitis B pediatric, 90633 for hepatitis A pediatric). Most private insurers and Medicaid reimburse vaccine products at VFC (Vaccines for Children) or ACIP-recommended rates.

Developmental and Behavioral Screening

Developmental screening is separately billable from the well-child visit, a revenue opportunity many pediatric practices miss because they include screening as part of the preventive visit without billing it separately.

• 96110, Developmental screening (e.g., ASQ, MCHAT), with interpretation and report, per standardized instrument
• 96112, Developmental test administration (first 60 minutes), by physician or QHP
• 96113, Developmental test administration (each additional 30 minutes)

 96110 can be billed once per visit per standardized instrument completed and interpreted. If you administer both a developmental screen (ASQ) and an autism screen (MCHAT-R) at the same visit, you may bill 96110 twice, once for each separate validated instrument. Document the specific tool administered, the score, and the clinical interpretation in the medical record.

Behavioral Health Screening

• 96127, Brief emotional/behavioral assessment (e.g., PHQ-A, PSC), with interpretation and report, per standardized instrument

 96127 covers brief behavioral health screens such as the Pediatric Symptom Checklist (PSC), PHQ-A (adolescent depression), or CRAFFT (substance use). Like 96110, it can be billed separately per validated instrument administered. Document the tool name, score, and clinical response.

ADHD and Behavioral Health Assessment Codes

ADHD evaluations and behavioral assessments in pediatrics generate specific CPT codes based on who performs the assessment and the complexity of the evaluation:

• 96127, Brief behavioral screen (see above)
• 96130, Psychological testing evaluation, first hour, by psychologist
• 96136, Psychological test administration, first 30 minutes, by technician or computer
• 99213–99215 with modifier -25, Physician E/M for ADHD management (medication, symptom review)

 Rating scales completed by parents and teachers (Vanderbilt, Conners) are not separately billable, they are tools that inform the physician’s clinical assessment. The physician’s assessment and interpretation of those scales supports a problem-focused E/M.

EPSDT Billing Under Medicaid

The Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) benefit covers comprehensive preventive care for Medicaid-enrolled children under age 21. EPSDT-covered services follow the same CPT codes as commercial preventive visits (99381–99394) but may include additional components mandated by the state Medicaid program, vision screening, hearing screening, lead screening, oral health assessment, that are separately billable under Medicaid.EPSDT billing requirements vary by state. Some states require specific EPSDT encounter codes or modifiers; others follow standard CPT without modification. Verify your state’s EPSDT billing requirements annually, they change as state Medicaid programs update their rules.

Newborn Care Billing

• 99460, Initial hospital or birthing center care, normal newborn
• 99461, Initial care, normal newborn, in a setting other than hospital or birthing center
• 99462, Subsequent hospital care, normal newborn per day
• 99463, Initial hospital care and discharge, same day
• 99464, Attendance at delivery and initial stabilization
• 99465, Delivery/birthing room resuscitation

 Newborn care codes include a daily E/M for routine well-newborn assessment. If a newborn develops a complication requiring additional assessment and management beyond routine newborn care, the additional E/M may be separately billable with modifier -25.

The 5 Most Common Pediatrics Billing Denials in 2026

1. Well-Child Visit Frequency Limitation

Billing a second well-child visit within 12 months without documentation supporting medical necessity (such as an early return for a catch-up visit after illness delay) results in a frequency denial. Prevention: check the date of the patient’s last preventive visit before scheduling and billing the next one.

2. Missing Modifier -25 on Same-Day Sick and Well Visit

Billing the problem-focused E/M without modifier -25 on the same day as a preventive visit causes the payer to bundle both claims into one payment. Always append -25 to the problem-focused E/M and use a distinct problem-specific diagnosis.

3. Vaccine Administration Code Mismatch

Billing 90460 without physician counseling documentation, or billing administration codes without the corresponding vaccine product codes (or vice versa). Build a vaccine administration code pairing check into your billing workflow.

4. Developmental Screen Billed Without Validated Instrument Documentation

Billing 96110 without documenting the specific validated instrument used and the score obtained. ‘Developmental screen performed’ is not sufficient documentation. Name the tool, record the score, and document the clinical interpretation.

5. EPSDT State-Specific Modifier or Code Omission

Medicaid-covered preventive visits requiring state-specific EPSDT codes or modifiers that were not appended. Review your state Medicaid billing manual at the start of each year for EPSDT-specific requirements.

Maximizing Pediatric Practice Revenue

The practices that capture the most revenue per well-child visit are the ones that systematically bill every separately billable service performed: the preventive E/M, the problem-focused E/M with modifier -25 when applicable, each developmental and behavioral screen with 96110/96127, vaccine administration with appropriate 90460/90471 codes, and any lab or diagnostic services. Run a monthly billing completeness audit, compare services documented in your notes to services billed. The gap is your missed revenue.Right On Time Medical Billing manages pediatric billing for practices across all 50 states. Our team understands the preventive E/M + sick visit modifier rules, vaccine administration code pairing, developmental screening documentation requirements, and EPSDT state-specific rules. Schedule a free pediatric billing review to find your revenue opportunities