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

Z22 Carrier of infectious disease

All 20 codes in the Z22 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

20

Can lead a claim

0

Cannot lead a claim

20

What CMS assigns to Z22

None of the 20 codes is assigned a clinical group. None of the 20 is assigned a comorbidity subgroup. None can lead a claim.

Every code in Z22

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
Z22.0Carrier of typhoidCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.1Carrier of other intestinal infectious diseasesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.2Carrier of diphtheriaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.3 Carrier of other specified bacterial diseases
Z22.31Carrier of bacterial disease due to meningococciCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.32 Carrier of bacterial disease due to staphylococci
Z22.321Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureusCMS: Carrier or suspected carrier of methicillin suscep staphCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.322Carrier or suspected carrier of Methicillin resistant Staphylococcus aureusCMS: Carrier or suspected carrier of methicillin resis staphCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.33 Carrier of bacterial disease due to streptococci
Z22.330Carrier of Group B streptococcusCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.338Carrier of other streptococcusCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.34 Carrier of Acinetobacter baumannii
Z22.340Carrier of carbapenem-resistant Acinetobacter baumanniiCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.341Carrier of carbapenem-sensitive Acinetobacter baumanniiCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.349Carrier of Acinetobacter baumannii, unspecifiedCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.35 Carrier of Enterobacterales
Z22.350Carrier of carbapenem-resistant EnterobacteralesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.358Carrier of other EnterobacteralesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.359Carrier of Enterobacterales, unspecifiedCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.39Carrier of other specified bacterial diseasesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.4Carrier of infections with a predominantly sexual mode of transmissionCMS: Carrier of infections w sexl mode of transmissCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.6Carrier of human T-lymphotropic virus type-1 [HTLV-1] infectionCMS: Carrier of human T-lymphotropic virus type-1 infectionCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.7Latent tuberculosisCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.8Carrier of other infectious diseasesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z22.9Carrier of infectious disease, unspecifiedCannot 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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