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

Z46 Encounter for fitting and adjustment of other devices

All 12 codes in the Z46 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

12

Can lead a claim

1

Cannot lead a claim

11

What CMS assigns to Z46

1 of the 12 codes groups to Complex Nursing Interventions; 11 are assigned no clinical group. None of the 12 is assigned a comorbidity subgroup. 1 of the 12 can lead a claim.

Every code in Z46

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
Z46.0Encounter for fitting and adjustment of spectacles and contact lensesCMS: Encounter for fit/adjst of spectacles and contact lensesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.1Encounter for fitting and adjustment of hearing aidCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.2Encounter for fitting and adjustment of other devices related to nervous system and special sensesCMS: Encntr for fit/adjst of dev rel to nrv sys and specl sensesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.3Encounter for fitting and adjustment of dental prosthetic deviceCMS: Encounter for fit/adjst of dental prosthetic deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.4Encounter for fitting and adjustment of orthodontic deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.5 Encounter for fitting and adjustment of other gastrointestinal appliance and device
Z46.51Encounter for fitting and adjustment of gastric lap bandCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.59Encounter for fitting and adjustment of other gastrointestinal appliance and deviceCMS: Encounter for fit/adjst of GI appliance and deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.6Encounter for fitting and adjustment of urinary deviceCan lead a claimDNone
Z46.8 Encounter for fitting and adjustment of other specified devices
Z46.81Encounter for fitting and adjustment of insulin pumpCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.82Encounter for fitting and adjustment of non-vascular catheterCMS: Encounter for fit/adjst of non-vascular catheterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.89Encounter for fitting and adjustment of other specified devicesCMS: Encounter for fitting and adjustment of oth devicesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z46.9Encounter for fitting and adjustment of unspecified 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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