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87420 Resp syncytial virus ag ia

What 87420 is

CMS fee schedule short descriptor: Resp syncytial virus ag ia.

Full CPT long descriptions are licensed by the American Medical Association and are not published on this site; the short descriptor above is the one CMS prints in its own fee schedule file. See About CPT.

Medicare payment for 87420 (CY2026)

This code has no Physician Fee Schedule rate: Statutory exclusion - not payable under the Physician Fee Schedule. It may be paid under a different fee schedule (clinical laboratory, DMEPOS, anesthesia) or not paid at all - check the relevant CMS schedule.

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Medically Unlikely Edit (MUE)

Medicare caps 87420 at 1 unit per date of service for practitioner claims (MAI 3 - date of service edit (clinical): units above the MUE may pay with documentation on appeal), rationale: Clinical: Data. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with 87420? These codes are bundled into it

87420 is a Column 1 code in 4 active NCCI PTP edits. When one of these Column 2 codes is reported on the same date of service, it is denied as bundled - unless the edit's modifier indicator is 1 and documentation supports a distinct service with an NCCI-associated modifier.

Column 2 codeShort descriptionModifier indicator
87206Smear fluorescent/acid stai1 - modifier may bypassCheck pair
88346Imfluor 1st 1antb stain px1 - modifier may bypassCheck pair
88350Imfluor ea addl 1antb stn px1 - modifier may bypassCheck pair
96523Irrig drug delivery device0 - no modifier bypassCheck pair

87420 is bundled into these codes

87420 appears as a Column 2 code in 14 active edits. Reported with one of these Column 1 codes on the same date of service, 87420 is the code that denies.

Column 1 codeShort descriptionModifier indicator
0115U0Check pair
0202U0Check pair
0225U0Check pair
0442U1Check pair
0528U1Check pair
87147Culture type immunologic1Check pair
87253Virus inoculate tissue addl1Check pair
87280Respiratory syncytial ag if1Check pair
87631Resp virus 3-5 targets0Check pair
87632Resp virus 6-11 targets0Check pair
87633Resp virus 12-25 targets0Check pair
87634Rsv dna/rna amp probe0Check pair
87637Sarscov2&inf a&b&rsv amp prb0Check pair
87807Rsv assay w/optic1Check pair

Data: CMS CY2026 Physician Fee Schedule RVU file (October release, RVU26D) and Medicare NCCI PTP practitioner edits v32.3 (2026 Q4). Verify against the official files before billing or contracting decisions.