localis

Type a CPT/HCPCS code, a place, a service in plain words, or a whole claim line like 90837 LCSW 94110.

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ZIP-to-locality crosswalk releases

The quarterly crosswalk mapping every 5-digit ZIP code to the Medicare payment locality whose GPCIs price claims from that ZIP.

This index is organized by the release itself rather than the underlying files. Use it when you want to identify the exact version first, then open its source files or the pages that use it.

2026 Copy link

Effective October 1 – December 31, 2026.

Effective July 1 – September 30, 2026.

Effective April 1 – June 30, 2026.

Effective January 1 – March 31, 2026.

2025 Copy link

Effective July 1 – September 30, 2025.

Effective April 1 – June 30, 2025.

Effective January 1 – March 31, 2025.

2024 Copy link

Effective July 1 – September 30, 2024.

Effective April 1 – June 30, 2024.

Effective January 1 – March 31, 2024.

2023 Copy link

Effective October 1 – December 31, 2023.

2022 Copy link

Effective April 1 – June 30, 2022.

Effective January 1 – March 31, 2022.

2021 Copy link

Effective July 1 – September 30, 2021.

Effective April 1 – June 30, 2021.

Effective January 1 – March 31, 2021.

2020 Copy link

Effective July 1 – September 30, 2020.

Effective April 1 – June 30, 2020.

Effective January 1 – March 31, 2020.

2019 Copy link

Effective July 1 – September 30, 2019.

Effective April 1 – June 30, 2019.

Effective January 1 – March 31, 2019.

2018 Copy link

Effective July 1 – September 30, 2018.

Effective April 1 – June 30, 2018.

Effective January 1 – March 31, 2018.