What Is a National Coverage Determination (NCD)?

Before deciding whether Medicare should cover a particular item (such as a brace or a hearing aid) or a service (such as therapy or screenings), the federal government conducts a comprehensive review process, and occasionally Congress may pass a law requiring coverage of a particular item or service. After coverage determinations or decisions are authorized, Medicare coverage is modified and Medicare carriers and other contractors (including Medicare Advantage organizations) coordinate their processes to fulfill these new coverage obligations. The formal name for these decisions which allow, limit, or exclude Medicare coverage is known as a national coverage determination (NCD). Coverage guidelines and effective dates are defined by Medicare or other rule making authority.

Changes are listed below and are periodically updated. For more information, please contact Customer Service at 541-768-4550 or toll free 800-832-4580 (TTY 800-735-2900). Customer Service is available during the following hours:

  • From Oct. 1 to March 31: Every day of the week, 8 a.m. to 8 p.m.
  • From April 1 to Sept. 30: Monday through Friday, 8 a.m. to 8 p.m.


2023 NCD Changes 

2022 NCD Changes 

2021 NCD Changes 

For more details, see the links below on the CMS Website.

2020 NCD Changes

Page Updated 4-24-2024

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