J3304 HCPCS code: Injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg
J3304 is the HCPCS Level II code for injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg. In 2024 Medicare paid an average of $13.61 per service for J3304 across 3,434,301 services. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. The NCCI unit limit is 64 per day on outpatient hospital claims. In 2024, about 4,883 clinicians billed Medicare for J3304 for 47,188 beneficiaries; California, Texas, Illinois accounted for 26% of services.
Code details
| Field | Value |
|---|---|
| Section | J codes — Drugs administered other than oral method |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 51 — Drug or biological (priced per ASP/average sales price rules) |
| BETOS category | O1E — Other drugs |
| Added | 2019-01-01 |
| Last action effective | 2019-01-01 |
Who bills J3304 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 4,883 |
| Medicare beneficiaries | 47,188 |
| States with claims | 49 |
| Share of services in top 3 states (California, Texas, Illinois) | 26% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for J3304, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 3,424,884 | 51,066 | $17.00 | $13.42 |
| 2023 | 3,431,175 | 49,620 | $16.63 | $13.12 |
| 2024 | 3,434,301 | 47,188 | $17.26 | $13.61 |
States with the most J3304 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| California | 361,835 | $13.70 |
| Texas | 263,563 | $13.60 |
| Illinois | 251,571 | $13.61 |
| Florida | 212,410 | $13.71 |
| New York | 191,769 | $13.64 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 64 | Anatomic Consideration |
| practitioner claims | 64 | Anatomic Consideration |
What changed for J3304
- 2019-01-01: J3304 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code J3304?
J3304 is the HCPCS Level II code for injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg. Short descriptor: "Inj triamcinolone ace xr 1mg".
How much does Medicare pay for J3304?
In 2024, the average Medicare payment was $13.61 per service (average allowed $17.26).
Does Medicare cover J3304?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
How many units of J3304 can be billed per day?
64 on outpatient hospital claims; 64 on practitioner claims (NCCI medically unlikely edits).
Related J33 codes
- J3300 — Injection, triamcinolone acetonide, preservative free, 1 mg
- J3301 — Injection, triamcinolone acetonide, not otherwise specified, 10 mg
- J3302 — Injection, triamcinolone diacetate, per 5 mg
- J3303 — Injection, triamcinolone hexacetonide, per 5 mg
- J3305 — Injection, trimetrexate glucuronate, per 25 mg
- J3310 — Injection, perphenazine, up to 5 mg
- J3315 — Injection, triptorelin pamoate, 3.75 mg
- J3316 — Injection, triptorelin, extended-release, 3.75 mg
- J3320 — Injection, spectinomycin dihydrochloride, up to 2 gm
- J3350 — Injection, urea, up to 40 gm
- J3355 — Injection, urofollitropin, 75 iu
- J3357 — Ustekinumab, for subcutaneous injection, 1 mg
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Next steps
- Run a reimbursement report for a device billed under J3304
- Watch J3304 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J3304
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.