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90377 Rabies ig ht&sol human im/sc

What 90377 is

CMS fee schedule short descriptor: Rabies ig ht&sol human im/sc.

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 90377 (CY2026)

This code has no Physician Fee Schedule rate: Excluded from the Physician Fee Schedule (paid under another system or not priced here). 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 90377 at 20 units 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: Prescribing Information. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with 90377? These codes are bundled into it

90377 is a Column 1 code in 5 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
36591Draw blood off venous device0 - no modifier bypassCheck pair
36592Collect blood from picc0 - no modifier bypassCheck pair
90375Rabies ig im/sc0 - no modifier bypassCheck pair
90376Rabies ig heat treated0 - no modifier bypassCheck pair
96523Irrig drug delivery device0 - no modifier bypassCheck 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.