`79101` Nuclear rx iv admin

What 79101 is

CMS fee schedule short descriptor: Nuclear rx iv admin.

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 79101 (CY2026)

	Work RVU	Practice expense RVU	Malpractice RVU	Total	Medicare rate
Non-facility (office)	1.91	2.28	0.09	4.28	$142.96
Facility (hospital, ASC)	1.91	2.28	0.09	4.28	$142.96

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.

Adjust for a Medicare locality:

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

Medically Unlikely Edit (MUE)

Medicare caps 79101 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: Nature of Service/Procedure. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with 79101? These codes are bundled into it

79101 is a Column 1 code in 121 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 code	Short description	Modifier indicator
`0541T`	Myocardial imaging mcg	0 - no modifier bypass	Check pair
`0542T`	Myocardial imaging mcg i&r	0 - no modifier bypass	Check pair
`0708T`	Id ca immntx prep & 1st njx	1 - modifier may bypass	Check pair
`0709T`	Id ca immntx each addl njx	1 - modifier may bypass	Check pair
`36000`	Place needle in vein	1 - modifier may bypass	Check pair
`36400`	Vnpnxr<3yrs phy/qhp fem/jug	1 - modifier may bypass	Check pair
`36410`	Vnpnxr 3yr/> phy/qhp dx/ther	1 - modifier may bypass	Check pair
`36591`	Draw blood off venous device	0 - no modifier bypass	Check pair
`36592`	Collect blood from picc	0 - no modifier bypass	Check pair
`77790`	Radiation handling	0 - no modifier bypass	Check pair
`78013`	Thyroid imaging w/blood flow	0 - no modifier bypass	Check pair
`78014`	Thyroid imaging w/blood flow	0 - no modifier bypass	Check pair
`78070`	Parathyroid planar imaging	0 - no modifier bypass	Check pair
`78071`	Parathyrd planar w/wo subtrj	0 - no modifier bypass	Check pair
`78072`	Parathyrd planar w/spect&ct	0 - no modifier bypass	Check pair
`78075`	Adrenal cortex & medulla img	0 - no modifier bypass	Check pair
`78102`	Bone marrow imaging ltd	0 - no modifier bypass	Check pair
`78103`	Bone marrow imaging mult	0 - no modifier bypass	Check pair
`78104`	Bone marrow imaging body	0 - no modifier bypass	Check pair
`78110`	Plasma volume single	0 - no modifier bypass	Check pair
`78111`	Plasma volume multiple	0 - no modifier bypass	Check pair
`78120`	Red cell mass single	0 - no modifier bypass	Check pair
`78121`	Red cell mass multiple	0 - no modifier bypass	Check pair
`78122`	Whl bld volume determination	0 - no modifier bypass	Check pair
`78130`	Red cell survival study	0 - no modifier bypass	Check pair
`78140`	Red cell sequestration	0 - no modifier bypass	Check pair
`78185`	Spleen imaging	0 - no modifier bypass	Check pair
`78191`	Platelet survival study	0 - no modifier bypass	Check pair
`78195`	Lymph system imaging	0 - no modifier bypass	Check pair
`78201`	Liver imaging static only	1 - modifier may bypass	Check pair

Showing 30 of 121 column 2 codes. Use the pair checker for any specific combination.

79101 is bundled into these codes

79101 appears as a Column 2 code in 2 active edits. Reported with one of these Column 1 codes on the same date of service, 79101 is the code that denies.

Column 1 code	Short description	Modifier indicator
`77750`	Infuse radioactive materials	0	Check pair
`79403`	Hematopoietic nuclear tx	0	Check 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.