HCPCS Code M1158: Deleted code for History of Immunocompromising Conditions Prior to or During the Measurement Period

HCPCS code M1158 was used to indicate that a patient had a history of immunocompromising conditions prior to or during the measurement period. It is now a deleted code.

HCPCS code M1159 was related to hospice services, but specific detailed information is limited; it appears alongside M1158 in recent CMS and AAPC updates, noting changes to HCPCS codes.

M1158 was deleted as part of CMS updates to the HCPCS code set to streamline coding and remove codes no longer needed or replaced by other mechanisms in claims processing. The deletion is reflected in CMS manuals and Integrated Outpatient Code Editor specifications effective from 2024 onward.