What Billing Changes Affect Pediatric RSV Prevention This Season?
The 2026-2027 RSV season begins in approximately October and runs through March, and pediatric practices must prepare their billing workflows now for three developments that affect how RSV prophylaxis and routine immunizations are coded and reimbursed. Beyfortus (nirsevimab) billing uses CPT codes 90380 and 90381 with specific VFC program and commercial payer rules that vary by state. New stand-alone immunization counseling codes (90482 through 90484) took effect January 1, 2026, and create a separate billable service for vaccine counseling visits. The ongoing AAP and CDC immunization schedule divergence means practices must decide which schedule to follow and verify that the payer covers the vaccines being administered.
Beyfortus billing codes: CPT 90380 (50 mg dose for infants less than 5 kg) and CPT 90381 (100 mg dose for infants 5 kg and above). Administer with the appropriate administration code and modifier SL if administered through the VFC program.
New counseling codes: CPT 90482, 90483, and 90484 became effective January 1, 2026, for stand-alone immunization counseling visits when no vaccine is administered at the encounter. These codes apply when a parent requests a counseling-only appointment to discuss vaccines.
Coverage uncertainty for 2027: AHIP, the health insurance trade association, committed to covering all ACIP-recommended vaccines without cost-sharing through the end of 2026. What happens in 2027 has not been confirmed, and the AAP/CDC schedule divergence adds complexity to payer coverage decisions.
How to Bill Beyfortus for the 2026-2027 RSV Season
Beyfortus (nirsevimab) is a monoclonal antibody, not a traditional vaccine, but it is administered through the same clinical workflows and is available through the Vaccines for Children (VFC) program. ACIP recommends nirsevimab for all infants through 8 months born during or entering their first RSV season, and for infants and children 8 to 19 months at increased risk entering their second RSV season.
The billing codes are CPT 90380 for the 50 mg dose (infants less than 5 kg at the time of administration) and CPT 90381 for the 100 mg dose (infants 5 kg and above). The appropriate immunization administration code is reported separately. If the product is obtained through the VFC program, the vaccine product code is reported with a $0 charge and modifier SL, while the administration fee is billable.
Beyfortus is covered on nearly 100% of commercial insurance plans, and Medicare-eligible children receive it through the VFC program at no cost. However, payer-specific billing requirements vary. Some payers require modifier SL even on commercial claims. Some require the vaccine product to be billed under the physician’s NPI while others accept it under the facility NPI. Your billing team needs to verify the specific submission requirements for each payer in your mix before the season begins.
The practical billing challenge with Beyfortus is timing. The product must be administered before the infant’s first RSV exposure, which means the billing workflow needs to be ready when the season starts, not after the first claims are denied. Practices that wait until October to configure their billing systems for Beyfortus lose revenue on every dose administered during the configuration period.
What Are the New Immunization Counseling Codes?
Effective January 1, 2026, CPT codes 90482, 90483, and 90484 became available for billing stand-alone immunization counseling visits. These codes apply when a parent or caregiver requests an appointment specifically to discuss vaccines and no immunization is administered at that encounter.
CPT 90482 covers the initial 15 minutes of immunization counseling. CPT 90483 covers each additional 15-minute increment. CPT 90484 covers immunization counseling for a group of 2 or more patients. These are separate from the HCPCS G-codes (G0310 through G0315) that have been available since 2022 for Medicare and Medicaid counseling.
For pediatric practices, these codes address a real billing gap. Vaccine hesitancy conversations can take 15 to 30 minutes or more, and until 2026, there was no separate CPT code to capture that time when no vaccine was given. The new codes allow practices to bill for the provider’s time spent counseling, which makes the visit financially sustainable rather than a write-off.
The billing requirement is documentation that the visit was specifically for immunization counseling, that the counseling was medically appropriate, and that no immunization was administered at the same encounter. If a vaccine is given during the visit, the standard E/M and vaccine administration codes apply instead.
How to Prepare Your Pediatric Billing for RSV Season
The 2026-2027 RSV season will test every component of your vaccine billing workflow. Here is the preparation checklist for pediatric practices.
1. Verify Beyfortus product availability and ordering. Beyfortus is available through VFC, VaccineShop, VaxServe, and select wholesalers. Confirm your supply orders are placed in time for the season start. Shortages in previous seasons delayed administration and created billing complications when doses became available mid-season.
2. Configure CPT 90380 and 90381 in your billing system. Both product codes need to be active in your practice management system with the correct pricing, modifier requirements, and payer-specific submission rules loaded before the first dose is administered.
3. Set up the new immunization counseling codes (90482-90484). If you are not yet billing for stand-alone vaccine counseling visits, add these codes now. Document the template in your EHR so that providers can capture the required counseling documentation efficiently.
4. Verify payer coverage for AAP-recommended vaccines. The AAP and CDC immunization schedules diverged in January 2026. AHIP committed to covering all ACIP-recommended vaccines through the end of 2026. Verify with each commercial payer in your mix whether vaccines the AAP recommends but CDC dropped from the routine schedule, including hepatitis A for certain age groups and meningococcal vaccines, will continue to be covered in 2027.
5. Update your well-child visit billing workflow. Well-child visits are the primary encounter where vaccines are administered. Ensure your coding workflow correctly captures the E/M service, all vaccine product codes, all administration codes, and any applicable counseling codes. A missed administration code or an unbilled vaccine product is lost revenue on every visit.
6. Evaluate whether your billing team is ready. RSV season billing adds Beyfortus product codes, age-based dosing rules, VFC modifier requirements, and payer-specific submission variations to an already complex pediatric vaccine billing workflow. If your in-house team is stretched, a specialized pediatric billing partner handles the seasonal ramp-up as standard practice.
RSV season starts in weeks, and the billing complexity around Beyfortus, new counseling codes, and the AAP/CDC schedule divergence requires specialty-level attention. If your pediatric practice needs a billing partner that understands vaccine billing, VFC program rules, and the specific coding workflows that determine whether you get paid correctly for every dose and every visit, we can match you with one in as little as 30 minutes.
The AAP/CDC Schedule Split and What It Means for Billing
In January 2026, the CDC Acting Director approved a new childhood immunization schedule that differed from the traditional ACIP-developed schedule. The AAP subsequently published its own 2026 immunization schedule that maintains the routine vaccine recommendations the CDC schedule had changed. This means two different national immunization schedules now exist for children.
For billing purposes, this creates a specific risk. The Affordable Care Act requires insurers to cover vaccines recommended by ACIP without cost-sharing. When the CDC and ACIP schedules aligned, coverage was straightforward. Now that they have diverged, the legal and contractual basis for no-cost-sharing coverage depends on which set of recommendations the payer recognizes.
AHIP stated that its member organizations would cover all immunizations recommended by ACIP as of September 1, 2025, without cost-sharing through the end of 2026. That commitment covers the current year but does not extend into 2027. If a payer decides in 2027 that certain vaccines are no longer on the routine schedule it covers, pediatric practices may face claim denials or patient cost-sharing on vaccines the AAP continues to recommend.
The practical advice for pediatric billing teams: document which schedule your practice follows (the AAP schedule), verify coverage with each commercial payer before administering any vaccine where coverage may be in question, and prepare for the possibility that some payer coverage decisions will change in January 2027.
Common Pediatric Vaccine Billing Mistakes
| Mistake | Revenue Impact | Fix |
|---|---|---|
| Missing vaccine administration codes | Administration fee is lost on every dose. Compounds across hundreds of visits per season | Audit claim data for encounters with vaccine product codes but no admin code |
| Billing VFC product with a charge amount | Claim rejected; VFC products must be billed at $0 with modifier SL | Configure VFC product codes with $0 charge and modifier SL by default |
| Not billing immunization counseling separately | 15-30 minute counseling visits generate zero revenue | Use CPT 90482-90484 for counseling-only visits starting 2026 |
| Wrong Beyfortus dose code | Denial or incorrect payment; dose is weight-based | 90380 for < 5 kg, 90381 for >= 5 kg; verify weight before coding |
Frequently Asked Questions
CPT 90380 for the 50 mg dose (infants less than 5 kg) and CPT 90381 for the 100 mg dose (infants 5 kg and above). The appropriate immunization administration code is billed separately. For VFC-supplied product, bill the vaccine code at $0 with modifier SL.
Beyfortus is covered on nearly 100% of commercial insurance plans. Children eligible for the VFC program receive it at no cost. Medicare Advantage and Medicaid coverage varies by state and plan. Verify coverage with each payer before the RSV season begins.
RSV season in the United States typically begins in October and runs through March, with peak activity in December and January. Pediatric practices should have Beyfortus orders placed, billing codes configured, and staff trained on the billing workflow by early September to be ready when the season starts.
CPT 90482 covers the initial 15 minutes of stand-alone immunization counseling. CPT 90483 covers each additional 15-minute increment. CPT 90484 covers group counseling for 2 or more patients. These codes became effective January 1, 2026, and apply when no immunization is administered at the encounter.
AHIP, the health insurance trade association, committed to covering all ACIP-recommended vaccines without cost-sharing through the end of 2026. Coverage decisions for 2027 have not been broadly confirmed, and the AAP/CDC immunization schedule divergence adds uncertainty. Pediatric practices should verify vaccine coverage with each payer before year-end.
Yes. A specialized pediatric billing company manages vaccine product codes, administration codes, VFC modifier requirements, immunization counseling billing, and payer-specific submission rules as part of standard revenue cycle management. Pediatrician Billers, powered by Billing Service Quotes, connects pediatric practices with billing partners that have direct experience in childhood immunization billing.
Next Steps
Place Beyfortus supply orders and configure CPT 90380 and 90381 in your practice management system before the RSV season begins.
Add the new immunization counseling codes (90482-90484) to your billing workflow and train providers on documentation requirements.
Verify vaccine coverage with each commercial payer in your mix, especially for vaccines where the AAP and CDC schedules differ, before year-end.
Pediatric vaccine billing is more complex in 2026 than it has ever been. Beyfortus dosing rules, VFC modifier requirements, new counseling codes, and the AAP/CDC schedule divergence all need to be handled correctly on every claim. Pediatrician Billers, powered by Billing Service Quotes, connects pediatric practices with vetted billing companies that specialize in childhood immunization billing, well-child visit coding, and the payer-specific rules that determine whether your practice gets paid correctly for every dose. More than 2,000 providers have been matched across all 50 states, with billing rates starting at 6%. Getting matched is free.
