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

Z44 Encounter for fitting and adjustment of external prosthetic device

All 26 codes in the Z44 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

26

Can lead a claim

0

Cannot lead a claim

26

What CMS assigns to Z44

None of the 26 codes is assigned a clinical group. None of the 26 is assigned a comorbidity subgroup. None can lead a claim.

Every code in Z44

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
Z44.0 Encounter for fitting and adjustment of artificial arm
Z44.00 Encounter for fitting and adjustment of unspecified artificial arm
Z44.001Encounter for fitting and adjustment of unspecified right artificial armCMS: Encounter for fit/adjst of unsp right artificial armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.002Encounter for fitting and adjustment of unspecified left artificial armCMS: Encounter for fit/adjst of unsp left artificial armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.009Encounter for fitting and adjustment of unspecified artificial arm, unspecified armCMS: Encounter for fit/adjst of unsp artificial arm, unsp armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.01 Encounter for fitting and adjustment of complete artificial arm
Z44.011Encounter for fitting and adjustment of complete right artificial armCMS: Encounter for fit/adjst of complete right artificial armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.012Encounter for fitting and adjustment of complete left artificial armCMS: Encounter for fit/adjst of complete left artificial armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.019Encounter for fitting and adjustment of complete artificial arm, unspecified armCMS: Encounter for fit/adjst of complete artificial arm, unsp armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.02 Encounter for fitting and adjustment of partial artificial arm
Z44.021Encounter for fitting and adjustment of partial artificial right armCMS: Encounter for fit/adjst of partial artificial right armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.022Encounter for fitting and adjustment of partial artificial left armCMS: Encounter for fit/adjst of partial artificial left armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.029Encounter for fitting and adjustment of partial artificial arm, unspecified armCMS: Encounter for fit/adjst of partial artificial arm, unsp armCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.1 Encounter for fitting and adjustment of artificial leg
Z44.10 Encounter for fitting and adjustment of unspecified artificial leg
Z44.101Encounter for fitting and adjustment of unspecified right artificial legCMS: Encounter for fit/adjst of unsp right artificial legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.102Encounter for fitting and adjustment of unspecified left artificial legCMS: Encounter for fit/adjst of unsp left artificial legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.109Encounter for fitting and adjustment of unspecified artificial leg, unspecified legCMS: Encounter for fit/adjst of unsp artificial leg, unsp legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.11 Encounter for fitting and adjustment of complete artificial leg
Z44.111Encounter for fitting and adjustment of complete right artificial legCMS: Encounter for fit/adjst of complete right artificial legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.112Encounter for fitting and adjustment of complete left artificial legCMS: Encounter for fit/adjst of complete left artificial legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.119Encounter for fitting and adjustment of complete artificial leg, unspecified legCMS: Encounter for fit/adjst of complete artificial leg, unsp legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.12 Encounter for fitting and adjustment of partial artificial leg
Z44.121Encounter for fitting and adjustment of partial artificial right legCMS: Encounter for fit/adjst of partial artificial right legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.122Encounter for fitting and adjustment of partial artificial left legCMS: Encounter for fit/adjst of partial artificial left legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.129Encounter for fitting and adjustment of partial artificial leg, unspecified legCMS: Encounter for fit/adjst of partial artificial leg, unsp legCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.2 Encounter for fitting and adjustment of artificial eye
Z44.20Encounter for fitting and adjustment of artificial eye, unspecifiedCMS: Encounter for fitting and adjustment of artificial eye, unspCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.21Encounter for fitting and adjustment of artificial right eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.22Encounter for fitting and adjustment of artificial left eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.3 Encounter for fitting and adjustment of external breast prosthesis
Z44.30Encounter for fitting and adjustment of external breast prosthesis, unspecified breastCMS: Encntr for fit/adjst of external breast prosth, unsp breastCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.31Encounter for fitting and adjustment of external right breast prosthesisCMS: Encounter for fit/adjst of external right breast prosthesisCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.32Encounter for fitting and adjustment of external left breast prosthesisCMS: Encounter for fit/adjst of external left breast prosthesisCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.8Encounter for fitting and adjustment of other external prosthetic devicesCMS: Encounter for fit/adjst of external prosthetic devicesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z44.9Encounter for fitting and adjustment of unspecified external prosthetic deviceCMS: Encounter for fit/adjst of unsp external prosthetic deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

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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