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

Z45 Encounter for adjustment and management of implanted device

All 19 codes in the Z45 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

19

Can lead a claim

1

Cannot lead a claim

18

What CMS assigns to Z45

1 of the 19 codes groups to Complex Nursing Interventions; 18 are assigned no clinical group. None of the 19 is assigned a comorbidity subgroup. 1 of the 19 can lead a claim.

Every code in Z45

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
Z45.0 Encounter for adjustment and management of cardiac device
Z45.01 Encounter for adjustment and management of cardiac pacemaker
Z45.010Encounter for checking and testing of cardiac pacemaker pulse generator [battery]CMS: Encntr for checking and test of card pacemaker pulse gnrtrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.018Encounter for adjustment and management of other part of cardiac pacemakerCMS: Encounter for adjust and mgmt oth prt cardiac pacemakerCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.02Encounter for adjustment and management of automatic implantable cardiac defibrillatorCMS: Encntr for adjust and mgmt of automatic implntbl card defibCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.09Encounter for adjustment and management of other cardiac deviceCMS: Encounter for adjustment and management of cardiac deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.1Encounter for adjustment and management of infusion pumpCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.2Encounter for adjustment and management of vascular access deviceCMS: Encounter for adjustment and management of VADCan lead a claimDNone
Z45.3 Encounter for adjustment and management of implanted devices of the special senses
Z45.31Encounter for adjustment and management of implanted visual substitution deviceCMS: Encntr for adjust and mgmt of implnt visual substitution devCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.32 Encounter for adjustment and management of implanted hearing device
Z45.320Encounter for adjustment and management of bone conduction deviceCMS: Encounter for adjust and mgmt of bone conduction deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.321Encounter for adjustment and management of cochlear deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.328Encounter for adjustment and management of other implanted hearing deviceCMS: Encounter for adjust and management of implanted hear devCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.4 Encounter for adjustment and management of implanted nervous system device
Z45.41Encounter for adjustment and management of cerebrospinal fluid drainage deviceCMS: Encounter for adjustment and management of CSF drain devCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.42Encounter for adjustment and management of neurostimulatorCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.49Encounter for adjustment and management of other implanted nervous system deviceCMS: Encntr for adjust and mgmt of implanted nervous sys deviceCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.8 Encounter for adjustment and management of other implanted devices
Z45.81 Encounter for adjustment or removal of breast implant
Z45.811Encounter for adjustment or removal of right breast implantCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.812Encounter for adjustment or removal of left breast implantCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.819Encounter for adjustment or removal of unspecified breast implantCMS: Encounter for adjustment or removal of unsp breast implantCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.82Encounter for adjustment or removal of myringotomy device (stent) (tube)CMS: Encntr for adjust or removal of myringotomy device (tube)Cannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.89Encounter for adjustment and management of other implanted devicesCMS: Encounter for adjustment and management of implanted devicesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z45.9Encounter for adjustment and management of unspecified implanted deviceCMS: Encounter for adjust and management of unsp implanted 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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