J3490 HCPCS code: Unclassified drugs

J3490 is the HCPCS Level II code for unclassified drugs. In 2024 Medicare paid an average of $142.02 per service for J3490 across 605,090 services. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. Medicare volume fell 5% from 2022 to 2024 (634,700 to 605,090 services). In 2024, about 9,483 clinicians billed Medicare for J3490 for 76,071 beneficiaries; California, Washington, Florida accounted for 45% of services.

Code details

FieldValue
SectionJ codes — Drugs administered other than oral method
Coverage codeD — Special coverage instructions apply
Pricing indicator51 — Drug or biological (priced per ASP/average sales price rules)
BETOS categoryO1E — Other drugs
Added1986-01-01
Last action effective1997-01-01

Who bills J3490 (2024)

MeasureValue
Clinicians billing (by place of service)9,483
Medicare beneficiaries76,071
States with claims53
Share of services in top 3 states (California, Washington, Florida)45%

Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.

Medicare utilization for J3490, 2022–2024

YearServicesBeneficiariesAvg. allowedAvg. paid
2022634,70074,260$156.39$124.43
2023618,75385,327$272.81$217.07
2024605,09076,071$179.18$142.02

States with the most J3490 services (2024)

StateServicesAvg. paid
California104,391$99.52
Washington83,210$20.79
Florida82,631$216.48
New York56,865$78.29
Texas39,896$414.37

Medicare policy articles for this code

Covered diagnoses (1,661 ICD-10-CM codes)

The diagnoses most often listed as covered in the policy articles above:

ICD-10-CMDiagnosisArticles listing it
I20.1Angina pectoris with documented spasm3
I20.81Angina pectoris with coronary microvascular dysfunction3
I20.89Other forms of angina pectoris3
I21.01ST elevation (STEMI) myocardial infarction involving left main coronary artery3
I21.02ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery3
I21.09ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall3
I21.11ST elevation (STEMI) myocardial infarction involving right coronary artery3
I21.19ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall3
I21.21ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery3
I21.29ST elevation (STEMI) myocardial infarction involving other sites3

Showing 10 of 1,661. The full list, non-covered diagnoses and CSV export are in Caduvo.

What changed for J3490

Frequently asked questions

What is HCPCS code J3490?

J3490 is the HCPCS Level II code for unclassified drugs. Short descriptor: "Drugs unclassified injection".

How much does Medicare pay for J3490?

In 2024, the average Medicare payment was $142.02 per service (average allowed $179.18).

Does Medicare cover J3490?

Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.

Which diagnoses support coverage for J3490?

Medicare policy articles that cite J3490 list 1,661 covered ICD-10-CM diagnosis codes across 8 articles. The most cited include I20.1 (Angina pectoris with documented spasm), I20.81 (Angina pectoris with coronary microvascular dysfunction), I20.89 (Other forms of angina pectoris). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

Related J34 codes

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Next steps

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.

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