HCPCS code J9120: Dactinomycin, per 0.5 mg2026 Medicare rate & RVUs

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What J9120 covers

Dactinomycin, also called actinomycin D, is an antineoplastic antibiotic given intravenously. Oncology clinicians use it in treatment regimens for cancers such as Wilms tumor, rhabdomyosarcoma, and gestational trophoblastic neoplasia. The drug may be furnished and administered in an office or hospital outpatient setting; the clinician or facility that supplies the drug reports the drug code. The administration service is identified separately when applicable.

CMS excludes J9120 from the physician fee schedule under status E. When Medicare covers the drug, payment is handled through another payment method; CMS classifies it as a Part B drug that generally uses the quarterly Average Sales Price drug pricing files when covered. Special Medicare coverage instructions apply. Each billing unit represents 0.5 mg of dactinomycin, so 1 mg corresponds to 2 units. Report units based on the amount administered and the code’s dose per unit.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where J9120 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

J9120 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the J9120 rate is calculated

Each of J9120’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for J9120

J9120 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

J9120 compared with similar codes

How to choose

J9130Dacarbazine injectionPer 100 mg

J9130 identifies dacarbazine, a different antineoplastic drug, and its unit is based on 100 mg. Use J9120 for dactinomycin.

J9150Daunorubicin injectionPer 10 mg

J9150 identifies daunorubicin, not dactinomycin. Select the code for the drug actually furnished.

J9100Cytarabine injectionPer 100 mg

J9100 identifies cytarabine hydrochloride in 100 mg units. It is a different drug from dactinomycin, which J9120 reports in 0.5 mg units.

Codes related to J9120

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates