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MLN Matters articles: 2026

MLN (Medicare Learning Network) Matters articles are a series of national articles designed to inform physicians, providers, and suppliers about the latest changes to the Medicare program. Please use the links below to review the articles released by CMS in 2026. Visit the CMS transmittals page for a complete listing of all MLNs issued nationwide.

2026 second quarter

Line of business Release date Subject MLN number
AB 5/29/2026 National coverage determination 20.37: Transcatheter tricuspid valve replacement (revised) MM14149
A 5/28/2026 ESRD prospective payment system: July 2026 quarterly update MM14483
A 5/27/2026 Rural health clinics & federally qualified health centers: Billing distance site telehealth services MM14468
AB 5/7/2026 Clinical laboratory fee schedule & clinical laboratory improvement amendments HCPCS codes, waived tests & reasonable charge payments: July 2026 quarterly update MM14476
A 4/20/2026 Vaccine administration national fee schedule: July 2026 quarterly update MM14470
A 4/14/2026 Low-volume hospital payment adjustment & the Medicare - dependent hospital program: FY 2026 extensions MM14415
A 4/10/2026 Prospective payment system hospital interim billing: New monthly adjustment process MM14416
A 4/10/2026 Critical access hospitals: Certified registered nurse anesthetist bypass for reason codes 31006 & 31007 MM14417
B 4/7/2026 Ambulatory surgical center payment system: April 2026 update MM14445
A 3/27/2026 Hospital outpatient prospective payment system: April 2026 update MM14380
AB 3/26/2026 DMEPOS fee schedule: April 2026 quarterly update MM14425
AB 3/26/2026 HCPCS codes used for skilled nursing facility consolidated billing enforcement: July 2026 quarterly update MM14427

 

Previous 2026 releases

Line of business Release date Subject MLN number
A 2/20/2026 Vaccine administration national fee schedule: April 2026 update 14390
B 2/20/2026 HCPCS codes and clinical laboratory improvement amendments edits: April 2026 14372
AB 2/20/2026 Clinical laboratory fee schedule and laboratory services subject to reasonable charge payment: April 2026 update 14371
AB 2/5/2026 ICD-10 and other coding revisions to national coverage determinations: July 2026 update 14356
A 1/28/2026 Hospital outpatient prospective payment system: January 2026 update 14361
AB 1/8/2026 Travel allowance fees for specimen collection: CY 2026 updates 14345