Data source · Centers for Medicare & Medicaid Services

Hospital Outpatient Prospective Payment System Quarterly Addenda

CMS quarterly OPPS Addenda A, B, and Q public files. CMS defines A and B as snapshots, effective at the beginning of each quarter, of HCPCS codes, status indicators, APC groups, and OPPS payment rates.

FreeFull fileNationalUnited States

What it answers ↓

1Questions answered

7Fields delivered

1Country

Questions this answers

1 · best fit first

QuestionPrimary fit

Medicare service payment limits

CMS quarterly OPPS Addenda A and B are effective-quarter snapshots publishing HCPCS codes, APC assignments, status indicators, OPPS payment rates, and copayment fields. They directly establish the national unadjusted Medicare hospital-outpatient amount and pricing classification for the selected code and release quarter.

Fields it delivers

7 fields

Ambulatory payment classification Beneficiary copayment amount Medical payment pass-through expiration Medical payment rate Medical procedure code Medical procedure description Procedure payment status

CoverageNational

CMS publishes Hospital Outpatient Prospective Payment System Quarterly Addenda as a national Medicare payment reference. It may contain locality/provider-class carve-outs, and no separately coded U.S. territory footprint is asserted from the checked page.

Access & termsFree

The cited first-party source provides a direct public download, API, or data-service route with no checkout, subscription purchase, or stated access fee. The standing route is free; the retired open-rights evidence remains relevant only to license terms.

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