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77373 Strtctc bdy rad ther tx dlvr

What 77373 is

CMS fee schedule short descriptor: Strtctc bdy rad ther tx dlvr.

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 77373 (CY2026)

Work RVUPractice expense RVUMalpractice RVUTotalMedicare rate
Non-facility (office)0.0029.050.2529.30$978.65
Facility (hospital, ASC)0.0029.050.2529.30$978.65

National rates: total RVUs x the CY2026 conversion factor of 33.4009 (non-QP), before geographic adjustment. Actual Medicare payment is 80% of the rate shown after the deductible; the patient or secondary payer owes the 20% coinsurance.


Status: Active - payable under the Physician Fee Schedule. Global period: Global concept does not apply.

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Medically Unlikely Edit (MUE)

Medicare caps 77373 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 77373? These codes are bundled into it

77373 is a Column 1 code in 246 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
0591THlth&wb coaching indiv 1st1 - modifier may bypassCheck pair
0592THlth&wb coaching indiv f-up1 - modifier may bypassCheck pair
0593THlth&wb coaching group1 - modifier may bypassCheck pair
0596TTemp fml iu vlv-pmp 1st insj0 - no modifier bypassCheck pair
0597TTemp fml iu valve-pmp rplcmt0 - no modifier bypassCheck pair
0947TMrgfus strtctc bl-br disrpj1 - modifier may bypassCheck pair
11920Correct skin color 6.0 cm/<0 - no modifier bypassCheck pair
11921Correct skn color 6.1-20.0cm0 - no modifier bypassCheck pair
16000Initial treatment of burn(s)0 - no modifier bypassCheck pair
16020Dress/debrid p-thick burn s0 - no modifier bypassCheck pair
16025Dress/debrid p-thick burn m0 - no modifier bypassCheck pair
16030Dress/debrid p-thick burn l0 - no modifier bypassCheck pair
20660Apply rem fixation device0 - no modifier bypassCheck pair
20661Application halo cranial1 - modifier may bypassCheck pair
20693Adjmt/revj ext fixj sys anes1 - modifier may bypassCheck pair
20694Rmvl ext fixj sys under anes1 - modifier may bypassCheck pair
36000Place needle in vein1 - modifier may bypassCheck pair
36410Vnpnxr 3yr/> phy/qhp dx/ther1 - modifier may bypassCheck pair
36425Venipuncture cutdown 1 yr/>0 - no modifier bypassCheck pair
36591Draw blood off venous device0 - no modifier bypassCheck pair
36592Collect blood from picc0 - no modifier bypassCheck pair
51701Insert bladder catheter0 - no modifier bypassCheck pair
51702Insert temp bladder cath0 - no modifier bypassCheck pair
51703Insert bladder cath complex0 - no modifier bypassCheck pair
61715Mrgfus strtctc ablt trgt icr1 - modifier may bypassCheck pair
61720Incise skull/brain surgery1 - modifier may bypassCheck pair
61735Incise skull/brain surgery1 - modifier may bypassCheck pair
61781Scan proc cranial intra1 - modifier may bypassCheck pair
61782Scan proc cranial extra1 - modifier may bypassCheck pair
61783Scan proc spinal1 - modifier may bypassCheck pair

Showing 30 of 246 column 2 codes. Use the pair checker for any specific combination.

77373 is bundled into these codes

77373 appears as a Column 2 code in 12 active edits. Reported with one of these Column 1 codes on the same date of service, 77373 is the code that denies.

Column 1 codeShort descriptionModifier indicator
32701Thorax stereo rad targetw/tx0Check pair
61750Incise skull/brain biopsy1Check pair
61751Brain biopsy w/ct/mr guide1Check pair
61760Implant brain electrodes1Check pair
61770Incise skull for treatment1Check pair
61796Srs cranial lesion simple0Check pair
61798Srs cranial lesion complex0Check pair
63620Srs spinal lesion1Check pair
77520Proton trmt simple w/o comp0Check pair
77522Proton trmt simple w/comp0Check pair
77523Proton trmt intermediate0Check pair
77525Proton treatment complex0Check 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.