CPT 90461: Additional Live Attenuated Vaccine Administration, Pediatric
Headline: CPT code 90461 covers same-visit administration of an additional live attenuated vaccine for patients under 18.
Lead: CPT code 90461 denotes the administration of an additional live attenuated vaccine—by parenteral, oral, intranasal, intramuscular, or intravenous routes—given to a patient up to 18 years of age after a first vaccine is administered. The code captures a specific pediatric vaccine-administration scenario that affects billing during multi-vaccine encounters.
Why it matters: Accurate use of CPT code 90461 matters nationally because pediatric immunization visits frequently involve multiple vaccine administrations in a single encounter. Correct coding supports proper claims adjudication, ensures appropriate vaccine administration capture, and affects reporting for vaccine-related services across payers.
Key payers covered: Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
What readers will learn: This publication explains the clinical context of CPT code 90461, typical sites of service and service type, common modifiers and payer considerations, and where the code fits in vaccine-administration workflows. It provides benchmarks and policy summaries where available, and highlights administrative implications for billing teams and practice managers.
Data note: Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
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Billing Code Overview
CPT code 90461 describes the administration of an additional live attenuated vaccine to a patient up to 18 years of age after the first vaccine has been given. The additional vaccine may be delivered by parenteral, oral, intranasal, intramuscular, or intravenous routes.
Service Type: Administration of an additional live attenuated vaccine during the same visit for pediatric patients (vaccine administration service).
Typical Site of Service: Ambulatory clinic, pediatrician office, public health clinic, school-based health center, or other outpatient settings where pediatric immunizations are provided.
Clinical & Coding Specifications
Clinical Context
A 12-year-old child presents to a pediatric primary care clinic for routine immunizations during a well-child visit. The clinician administers an initial live attenuated vaccine (for example, intranasal live attenuated influenza vaccine or oral rotavirus vaccine) and, per the immunization schedule or clinical indications, administers an additional live attenuated vaccine during the same visit for ongoing protection. The clinical workflow includes verification of patient identity and age (patient must be ≤18 years), review of immunization history and contraindications, obtaining informed assent/consent from the parent or guardian, preparation of the appropriate vaccine formulation (parenteral, oral, intranasal, intramuscular, or intravenous if applicable), administration, observation for immediate adverse reactions (typically 15–30 minutes), and documentation of vaccine product, lot number, site, route, date/time, and provider information. Billing is submitted using 90461 to report the administration of the additional live attenuated vaccine for a patient up to 18 years of age after the first vaccine was administered during the same encounter.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure or other service | Use when a distinct E/M visit is provided in addition to same-day vaccine administration documented separately. |
59 | Distinct procedural service | Use to indicate a separate and distinct procedure when bundling edits might otherwise deny payment. |
76 | Repeat procedure or service by same physician | Use when the same vaccine administration procedure is repeated by the same provider on the same day. |
77 | Repeat procedure by another physician | Use when a different physician repeats the vaccine administration on the same day (note: 77 is not in the provided list; do not use if strict adherence required). |
51 | Multiple procedures (not in provided list) | Data not available in the input. |
52 | Reduced service | Use when the vaccine administration is partially reduced or not completed as originally planned. |
53 | Discontinued procedure | Use when vaccine administration was started but discontinued due to patient reaction or other immediate contraindication. |
59 | Distinct procedural service | (See above; duplicate entries avoided) |
GA | Waiver of liability statement on file, no meeting Advance Beneficiary Notice requirements | Use when a voluntary waiver applies per payer policy. |
GZ | Item or service expected to be denied as not reasonable and necessary | Use when provider documents that the service is non-covered and no ABN was obtained. |
GT | Via interactive audio and video telecommunications (not in provided list) | Data not available in the input. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
208000000X | Pediatrics | Primary specialty administering childhood vaccines. |
207Q00000X | Family Medicine | Commonly provides immunizations during well visits for pediatric patients. |
363A00000X | Nurse Practitioner | NPs in pediatric or family practice settings frequently administer vaccines. |
167V00000X | Emergency Medicine | May administer vaccines in acute care settings when indicated. |
207L00000X | Internal Medicine-Pediatrics | Providers trained in both specialties who administer pediatric vaccines. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
Z00.129 | Encounter for routine child health examination without abnormal findings | Common reason for vaccine administration during well-child visits. |
Z23 | Encounter for immunization | Primary diagnosis code to support vaccine administration. |
J10.1 | Influenza due to other identified influenza virus with other respiratory manifestations | May prompt administration of intranasal live attenuated influenza vaccine in eligible patients (when indicated for prevention). |
A08.4 | Viral intestinal infection, unspecified | In settings where oral live attenuated rotavirus vaccine is indicated (younger infants), relates to preventive immunization. |
Z71.89 | Other specified counseling | Used when vaccine counseling or education is separately documented during the visit. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
90460 | Immunization administration through 18 years of age via any route of administration, with counseling by physician or other qualified health care professional; first or only component of each vaccine or toxoid administered | Use for the initial immunization administration when counseling is provided; 90461 is billed for the additional live attenuated vaccine given during the same visit. |
90471 | Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); one vaccine (single or combination vaccine/toxoid) | Use when a single parenteral vaccine is administered without counseling; for multiple injections, other related administration codes may apply. |
90472 | Each additional vaccine (single or combination vaccine/toxoid) administered to a patient through 18 years of age, per injection | Use when additional injectable vaccines are administered in the same visit (alternative reporting to 90461 depending on vaccine type and payer guidance). |
90732 | Pneumococcal conjugate vaccine, 13-valent, for intramuscular use | Example of a vaccine product that may be administered in the same visit; product/procedure codes for vaccine supply are often billed separately. |
90734 | Hepatitis A vaccine, pediatric/adolescent dosage, intramuscular | Another vaccine product commonly administered in pediatric visits alongside live attenuated vaccines. |