CPT 90473: Immunization Administration, Intranasal/Oral
Immunization administration by intranasal or oral route, one vaccine (single or combination). Used for vaccines administered via nasal spray (FluMist) or oral route (rotavirus).
Why CPT 90473 Claims Get Denied
Claims billed under CPT 90473 are frequently denied or downcoded for the following reasons. Understanding these patterns helps your practice reduce denial rates and recover revenue faster.
Route of administration not documented
Missing vaccine product code
Bundled with office visit
Incorrect administration code for the route used
Billing Tips for CPT 90473
Use for FluMist (intranasal influenza vaccine) and oral vaccines like rotavirus. Bill the vaccine product separately. Do not use 90471 for intranasal or oral routes. Document the specific route of administration in the medical record.
Documentation Requirements
To support a clean claim for CPT 90473, your clinical documentation should include:
Vaccine product (name, manufacturer, lot number)
Route of administration (intranasal or oral)
VIS provided to patient/parent
Provider administering the vaccine
Any adverse reactions noted
Reduce CPT 90473 Denials by 60%
RediClaim's pre-submission scrubber catches documentation gaps and coding errors before you submit, while the appeal generator handles denials that slip through.