October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

Y79 Orthopedic devices associated with adverse incidents

All 5 codes in the Y79 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

5

Can lead a claim

0

Cannot lead a claim

5

What CMS assigns to Y79

None of the 5 codes is assigned a clinical group. None of the 5 is assigned a comorbidity subgroup. None can lead a claim.

Every code in Y79

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
Y79.0Diagnostic and monitoring orthopedic devices associated with adverse incidentsCMS: Diagnostic and monitoring orthopedic devices assoc w incdtCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y79.1Therapeutic (nonsurgical) and rehabilitative orthopedic devices associated with adverse incidentsCMS: Therapeutic and rehab orthopedic devices assoc w incdtCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y79.2Prosthetic and other implants, materials and accessory orthopedic devices associated with adverse incidentsCMS: Prosth/oth implnt/mtrls orthopedic devices assoc w incdtCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y79.3Surgical instruments, materials and orthopedic devices (including sutures) associated with adverse incidentsCMS: Surgical instrumnt, materials and orth devices assoc w incdtCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
Y79.8Miscellaneous orthopedic devices associated with adverse incidents, not elsewhere classifiedCMS: Miscellaneous orthopedic devices assoc w incdt, NECCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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