CMS has released the updated ICD-9 and ICD-10 valid and excluded diagnosis code lists for Fiscal Year 2027, which take effect in October 2026.
Providers and billing teams should review the updated lists to ensure they are using the appropriate diagnosis codes and are aware of any codes that are no longer valid or are excluded under the updated FY2027 guidelines. Reviewing these changes ahead of the October implementation date can help practices avoid potential billing or claims issues.
Resource: ICD Code Lists