CMS updates this file quarterly—January, April, July, and October—and occasionally re-posts a quarter mid-stream to fix errors. Each version we ingested is preserved below as a separate release.
CMS reorganizes its site often and direct file links break. If a download link below stops working, every release remains available from the official CMS Clinical Lab Fee Schedule files page.
2026 Copy link
In effect October 1 – December 31, 2026 (Q4 2026 on this site).
In effect July 1 – September 30, 2026 (Q3 2026 on this site).
In effect April 1 – June 30, 2026 (Q2 2026 on this site).
In effect January 1 – March 31, 2026 (Q1 2026 on this site).
2025 Copy link
In effect October 1 – December 31, 2025 (Q4 2025 on this site).
In effect July 1 – September 30, 2025 (Q3 2025 on this site).
In effect April 1 – June 30, 2025 (Q2 2025 on this site).
In effect January 1 – March 31, 2025 (Q1 2025 on this site).
2024 Copy link
In effect October 1 – December 31, 2024 (Q4 2024 on this site).
In effect July 1 – September 30, 2024 (Q3 2024 on this site).
In effect April 1 – June 30, 2024 (Q2 2024 on this site).
Our methodology documents how every file is parsed, versioned, and verified.