Pediatrics ICD-10 Codes & CPT Codes
Pediatric coding spans well-child visits, acute illnesses, vaccinations, developmental screenings, and chronic condition management from newborn through adolescence. This page reflects FY2026 ICD-10-CM (effective Oct 1, 2025) and CPT 2026 code sets, and flags upcoming FY2027 ICD-10-CM changes (effective Oct 1, 2026) that are relevant to pediatric practices.
FY 2027 ICD-10-CM (CMS, eff. 10/1/2026) · CPT 2026 (AMA) · All codes verified billable · Last verified: October 2026
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Top ICD-10 Codes for Pediatrics
Source: CMS ICD-10-CM Official Code Set FY 2026. Code K31.B is part of the FY 2027 update (effective Oct 1, 2026) and is included above for advance planning.
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Common CPT Codes for Pediatrics Billing
*Approximate 2026 CMS national non-facility rate. Rates vary by geography, setting, and payer contract. Codes 90482-90484 are new for CPT 2026 and carry CMS status indicator “I” (not valid for Medicare payment); check individual commercial payer policy for coverage and rates. Refer to the CMS Physician Fee Schedule for official Medicare rates.
Top Denial Reasons for Pediatrics Claims
Well-Child Visit Billed Same Day as Sick Visit Without Modifier -25
Payers routinely deny a separate E&M service billed on the same date as a preventive visit unless modifier -25 is appended to indicate a separately identifiable, medically necessary service. Always attach -25 to the sick-visit code and document the distinct chief complaint and medical decision-making in the encounter note.
Vaccine Administration Denied Due to Missing or Incorrect Vaccine Code Linkage
Claims for immunization administration (90460/90461) are denied when the corresponding vaccine product code (e.g., 90686) is not billed on the same claim, or when an incorrect vaccine code is paired with the administration code. Ensure each administration code is linked to the exact product code administered and that the units for 90461 reflect each additional component correctly.
Developmental Screening (96110) Denied for Insufficient Documentation
Payers deny 96110 when the claim lacks evidence that a standardized, validated screening instrument (e.g., M-CHAT-R, ASQ) was used and that scoring with clinician interpretation was documented in the medical record. Attach the completed instrument or note the tool name, score, and any follow-up action taken.
ADHD Management Claims Denied for Missing Diagnosis-to-Procedure Linkage
Office visits coded for ADHD management (F90.0, F90.2) are denied when documentation does not support the level of MDM billed or when the claim lacks a qualifying diagnosis pointer to the E&M code. Ensure the encounter note captures the number and complexity of problems addressed, data reviewed, and risk of treatment to support the selected E&M level.
Pediatrics Billing & Coding Tips
- Use age-specific well-child CPT codes (99381–99385 new, 99391–99395 established) — billing the wrong age band triggers claim edits.
- Z23 is the primary diagnosis for immunization-only visits; add the specific vaccine product codes from the 90xxx series.
- ADHD coding requires specifying subtype: F90.0 (predominantly inattentive), F90.1 (predominantly hyperactive-impulsive), or F90.2 (combined).
- Developmental screening (96110) can be billed in addition to a well-child E&M at the same visit without a modifier.
- New for CPT 2026: 90482-90484 report stand-alone immunization counseling (3+ minutes) on visits where no vaccine is given that day — useful for vaccine-hesitancy discussions. These are Medicare status “I” (non-covered); verify commercial payer policy before billing.
Related Resources
Related Specialties
Physicians and coders who visit this page also reference these specialty codes.
Frequently Asked Questions
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