HCPCS code J3301: Triamcinolone injection, per 10 mg2026 Medicare rate & RVUs in California

CMS doesn’t publish an office rate for J3301 in California.

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

What J3301 covers

J3301 reports injectable triamcinolone acetonide when the product is not identified by a more specific triamcinolone code. Clinicians may inject it into a joint or bursa, around soft tissue, or into skin lesions, depending on the preparation and clinical purpose. Physicians in specialties such as orthopedics, rheumatology, and dermatology commonly report the drug when administering it in office or outpatient settings. J3301 represents the drug; the injection procedure is identified separately when separately reportable.

Each unit represents 10 mg of triamcinolone acetonide, so a 40 mg dose is four units. CMS excludes J3301 from the physician fee schedule by regulation, with status E. When Medicare covers it, payment is made through another payment method. CMS classifies it as a Part B drug generally priced using its quarterly Average Sales Price files. Special Medicare coverage instructions apply.

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 J3301 pays more and less in California

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

29 of 29 payment localities

How the J3301 rate is calculated

Each of J3301’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 J3301

J3301 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.

J3301 compared with similar codes

How to choose

J3300Triamcinolone injectionPreservative-free, per 1 mg

J3300 identifies preservative-free triamcinolone acetonide. J3301 is the general acetonide code.

J3302Triamcinolone diacetatePer 5 mg

J3302 is for triamcinolone diacetate, not triamcinolone acetonide.

J3303Triamcinolone hexacetonidePer 5 mg

J3303 identifies triamcinolone hexacetonide, a different preparation from the acetonide reported with J3301.

J3304Triamcinolone injectionExtended-release, per 1 mg

J3304 identifies extended-release triamcinolone acetonide; J3301 is not the extended-release code.

Codes related to J3301

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