CLFS Files https://www.cms.gov/rss/30936 Fri, 03 Apr 2026 23:17:02 -0400 Centers for Medicare and Medicaid Services26CLABQ2Thu, 26 Mar 2026 14:10:08 -0400https://www.cms.gov//medicare/payment/fee-schedules/clinical-laboratory-fee-schedule-clfs/files/26clabq2https://www.cms.gov//medicare/payment/fee-schedules/clinical-laboratory-fee-schedule-clfs/files/26clabq2calendar_year: 2026

description: CY 2026 Q2 Release: Updated for April 2026. The update includes all changes identified in CR 14371. The file has 2,179 records.

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description: CY 2026 Q1 Release: Updated for January 2026. The update includes all changes identified in CR 14312. The file has 2,162 records.

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description: CY 2025 Q4 Release: Updated for October 2025. The update includes all changes identified in CR 14211. The file has 2,149 records.

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description: CY 2025 Q3 Release: Added for July 2025. The update includes all changes identified in CR 14025 and CR 14055. The file has 2,126 records.

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description: CY 2025 Q2 Release: Added for April 2025. The update includes all changes identified in CR 13966. The file has 2,105 records.

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description: CY 2025 Q1 Release: Added for January 2025. The update includes all changes identified in CR 13889. The file has 2,087 records. (Revised 01/08/2025)

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]]>24CLABQ4Mon, 30 Sep 2024 15:22:34 -0400https://www.cms.gov//medicare/payment/fee-schedules/clinical-laboratory-fee-schedule-clfs/files/24clabq4https://www.cms.gov//medicare/payment/fee-schedules/clinical-laboratory-fee-schedule-clfs/files/24clabq4calendar_year: 2024

description: CY 2024 Q4 Release: Added for October 2024. The update includes all changes identified in CR 13717. The file has 2,068 records.

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]]>24CLABQ3Thu, 27 Jun 2024 15:12:16 -0400https://www.cms.gov//medicare/payment/fee-schedules/clinical-laboratory-fee-schedule-clfs/files/24clabq3https://www.cms.gov//medicare/payment/fee-schedules/clinical-laboratory-fee-schedule-clfs/files/24clabq3calendar_year: 2024

description: CY 2024 Q3 Release: Added for July 2024. The update includes all changes identified in CR 13613. The file has 2,024 records.

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description: CY 2024 Q2 Release: Added for April 2024. The update includes all changes identified in CR 13541. The file has 2,000 records.

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description: CY 2024 Q1 Release: Added for January 2024. The update includes all changes identified in CR 13467. The file has 1,991 records. (Revised 01/10/2024)

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description: CY 2023 Q4 Release: Added for October 2023. The update includes all changes identified in CR 13321. The file has 1,959 records.

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description: CY 2023 Q3 Release: Added for July 2023. The update includes all changes identified in CR 13195. The file has 1,943 records.

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description: CY 2023 Q2 Release: Added for April 2023. The update includes all changes identified in CR 13082. The file has 1,942 records.

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description: CY 2023 Q1 Release: Added for January 2023. The update includes all changes identified in CR 13023. The file has 1,922 records.

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description: CY 2022 Q4 Release: Added for October 2022. The update includes all changes identified in CR 12870. The file has 1,900 records.

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description: CY 2022 Q3 Release: Added for July 2022. The update includes all changes identified in CR 12737. The file has 1,881 records.

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description: CY 2022 Q2 Release: Added for April 2022. The update includes all changes identified in CR 12612. The file has 1,874 records. - Updated 03/31/2022: Revised effective date and rate for 0108U.

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description: CY 2022 Q1 Release: Added for January 2022. The update includes all changes identified in CR 12558. The file has 1,859 records. *On December 10, 2021, the “Protecting Medicare and American Farmers from Sequester Cuts Act” (S. 610) delayed the reporting requirement under Section 1834A of the Act and also delayed the application of the 15% phase-in reduction.

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description: CY 2021 Q4 Release: Added for October 2021. The update includes all changes identified in CR 12435. The file has 1,808 records.

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description: CY 2021 Q3 Release: Added for July 2021. The update includes all changes identified in CR 12285. The file has 1,778 records.

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description: CY 2021 Q2 Release: Added for April 2021. The update includes all changes identified in CR 12178. The file has 1,769 records.

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description: CY 2021 Q1 Release: Added for January 2021. The update includes all changes identified in CR 12080. The file has 1,766 records.

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description: CY 2020 Q4 Release: Added for October 2020. The update includes all changes identified in CR 11937. The file has 1,713 records.

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description: CY 2020 Q3 Release: Revised for July 2020. The update includes all changes identified in CR 11815. The file has 1,685 records.

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description: CY 2020 Q2 Release: Revised for April 2020. The update includes all changes identified in CR 11681. The file has 1,649 records.

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description: CY 2020 Q1 Release: Added for January 2020. The update includes all changes identified in CR 11598. The file has 1,635 records.

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]]>19CLABQ4Mon, 04 Nov 2019 02:48:21 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/19clabq4https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/19clabq4calendar_year: 2019

description: CY 2019 Q4 Release: Revised for October 2019. The update includes all changes identified in CR 11406. The file has 1,529 records.

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description: CY 2019 Q3 Release: Revised for July 2019. The update includes all changes identified in CR 11280. The file has 1,528 records.

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description: CY 2019 Q1 Release: Revised for January 2019. The update includes all changes identified in CR 11076. Updated January 15, 2019. The file has 1,528 records.

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]]>18CLABQ3Mon, 04 Nov 2019 02:45:53 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/18clabq3https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/18clabq3calendar_year: 2018

description: CY 2018 Q3 Release: Revised for July 2018. The update includes all changes identified in CR 10642. Updated July 3, 2018 w/ 1,437 records.

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description: CY 2018 Q2 Release: Revised for April 2018. The update includes all changes identified in CR 10445. Updated April 5, 2018 w/ 1,436 records.

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description: Revision for 2014. The update includes all changes identified in CR8695, TDL140304, and CR 8837. Per CR 8695, the full CLFS 2014 file, effective January 1st, is denoted by the EffJan1 notation. Per TDL 140304 & CR 8837, the partial CLFS 2014 file, with the three codes effective April 1st, is denoted by the EffApr1 notation.

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]]>CR4144Mon, 04 Nov 2019 02:41:55 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/cr4144https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/cr4144calendar_year: 2006

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]]>CR3526Mon, 04 Nov 2019 02:41:55 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/cr3526https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/cr3526calendar_year: 2005

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]]>08CLAB-bMon, 04 Nov 2019 02:41:55 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/08clab-bhttps://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/08clab-bcalendar_year: 2008

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]]>11CLABMon, 04 Nov 2019 02:41:55 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/11clabhttps://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/11clabcalendar_year: 2011

description: Revised for January 2011. The update includes all changes identified in CR6991.

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description: Revised for January 2012. The update includes all changes identified in CR7654.

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description: Revised March 2011. The update includes all changes identified in JSM 11259. Effective Date of April 1, 2011. Note: This file was created before 3/19/2011. As of that date, the Part B contractor number for Virginia was modified from 00904 to 11302.

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]]>10CLABMon, 04 Nov 2019 02:41:55 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/10clabhttps://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/10clabcalendar_year: 2010

description: Revised for January 2010. The update includes all changes identified in CR6657.

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]]>16CLABMon, 04 Nov 2019 02:41:55 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/16clabhttps://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/16clabcalendar_year: 2016

description: Revised for January 2016. The update includes all changes identified in CR 9465.

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]]>15CLABMon, 04 Nov 2019 02:41:53 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/15clabhttps://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/15clabcalendar_year: 2015

description: Revised for January 2015. The update includes all changes identified in CR 9028. Per CR 9028, the full CLFS 2015 file, effective January 1st, is denoted by the EffJan1 notation.

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]]>13CLABMon, 04 Nov 2019 02:41:53 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/13clabhttps://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/13clabcalendar_year: 2013

description: Revised for January 2013. The update includes all changes identified in CR8132.

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]]>10CLABAPRMon, 04 Nov 2019 02:41:53 -0500https://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/10clabaprhttps://www.cms.gov//medicare/medicare-fee-for-service-payment/clinicallabfeesched/clinical-laboratory-fee-schedule-files-items/10clabaprcalendar_year: 2010

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