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

N07 Hereditary nephropathy, not elsewhere classified

All 12 codes in the N07 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

10

Cannot lead a claim

2

What CMS assigns to N07

10 of the 12 codes group to MMTA - Other (9) and MMTA - Gastrointestinal tract and Genitourinary system (1); 2 are assigned no clinical group. 1 of the 12 counts toward the Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD comorbidity subgroup; 11 are assigned none. 10 of the 12 can lead a claim.

  • Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD: counts toward the high comorbidity tier only in an interaction pair.

Every code in N07

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
N07.0Hereditary nephropathy, not elsewhere classified with minor glomerular abnormalityCMS: Hereditary nephropathy, NEC w minor glomerular abnormalityCan lead a claimANone
N07.1Hereditary nephropathy, not elsewhere classified with focal and segmental glomerular lesionsCMS: Heredit nephrop, NEC w focal and seg glomerular lesionsCan lead a claimANone
N07.2Hereditary nephropathy, not elsewhere classified with diffuse membranous glomerulonephritisCMS: Hereditary nephropathy, NEC w diffuse membranous glomrlnephCan lead a claimANone
N07.3Hereditary nephropathy, not elsewhere classified with diffuse mesangial proliferative glomerulonephritisCMS: Heredit nephrop, NEC w diffuse mesangial prolif glomrlnephCan lead a claimANone
N07.4Hereditary nephropathy, not elsewhere classified with diffuse endocapillary proliferative glomerulonephritisCMS: Heredit nephrop, NEC w diffus endocaplry prolif glomrlnephCan lead a claimANone
N07.5Hereditary nephropathy, not elsewhere classified with diffuse mesangiocapillary glomerulonephritisCMS: Hereditary nephropathy, NEC w diffuse mesangiocap glomrlnephCan lead a claimANone
N07.6Hereditary nephropathy, not elsewhere classified with dense deposit diseaseCMS: Hereditary nephropathy, NEC w dense deposit diseaseCan lead a claimANone
N07.7Hereditary nephropathy, not elsewhere classified with diffuse crescentic glomerulonephritisCMS: Hereditary nephropathy, NEC w diffuse crescentic glomrlnephCan lead a claimANone
N07.8Hereditary nephropathy, not elsewhere classified with other morphologic lesionsCMS: Hereditary nephropathy, NEC w oth morphologic lesionsCan lead a claimANone
N07.9Hereditary nephropathy, not elsewhere classified with unspecified morphologic lesionsCMS: Hereditary nephropathy, NEC w unsp morphologic lesionsCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
N07.AHereditary nephropathy, not elsewhere classified with C3 glomerulonephritisCMS: Hereditary nephropathy, NEC with C3 glomerulonephritisCan lead a claimJOther disorders of the kidney and ureter, excluding chronic kidney disease and ESRD
N07.BHereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD]CMS: Hereditary nephrop, NEC with APOL1-mediated kidney diseaseCannot 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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