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

N42 Other and unspecified disorders of prostate

All 11 codes in the N42 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

11

Can lead a claim

10

Cannot lead a claim

1

What CMS assigns to N42

10 of the 11 codes group to MMTA - Other (5) and MMTA - Gastrointestinal tract and Genitourinary system (5); 1 is assigned no clinical group. None of the 11 is assigned a comorbidity subgroup. 10 of the 11 can lead a claim.

Every code in N42

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
N42.0Calculus of prostateCan lead a claimJNone
N42.1Congestion and hemorrhage of prostateCan lead a claimJNone
N42.3 Dysplasia of prostate
N42.30Unspecified dysplasia of prostateCan lead a claimANone
N42.31Prostatic intraepithelial neoplasiaCan lead a claimJNone
N42.32Atypical small acinar proliferation of prostateCan lead a claimANone
N42.39Other dysplasia of prostateCan lead a claimANone
N42.8 Other specified disorders of prostate
N42.81Prostatodynia syndromeCan lead a claimANone
N42.82Prostatosis syndromeCan lead a claimANone
N42.83Cyst of prostateCan lead a claimJNone
N42.89Other specified disorders of prostateCan lead a claimJNone
N42.9Disorder of prostate, 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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