ICD-10 · PDGM grouping
N06 Isolated proteinuria with specified morphological lesion
All 14 codes in the N06 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.
Codes in family
14
Can lead a claim
13
Cannot lead a claim
1
What CMS assigns to N06
13 of the 14 codes group to MMTA - Other (12) and MMTA - Gastrointestinal tract and Genitourinary system (1); 1 is assigned no clinical group. 1 of the 14 counts toward the Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD comorbidity subgroup; 13 are assigned none. 13 of the 14 can lead a claim. CMS attaches a code-first note to 1 of the 14.
- Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD: counts toward the high comorbidity tier only in an interaction pair.
Code first
CMS grouper convention 12, on N06.22. Code first:
- underlying disease
Every code in N06
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| N06.0 | Isolated proteinuria with minor glomerular abnormality | Can lead a claim | A | None |
| N06.1 | Isolated proteinuria with focal and segmental glomerular lesionsCMS: Isolated protein w focal and segmental glomerular lesions | Can lead a claim | A | None |
| N06.2 Isolated proteinuria with diffuse membranous glomerulonephritis | ||||
| N06.20 | Isolated proteinuria with diffuse membranous glomerulonephritis, unspecifiedCMS: Isolated protein with diffuse membranous glomrlneph, unsp | Can lead a claim | A | None |
| N06.21 | Primary membranous nephropathy with isolated proteinuria | Can lead a claim | A | None |
| N06.22 | Secondary membranous nephropathy with isolated proteinuria | Can lead a claim, code first applies | A | None |
| N06.29 | Other isolated proteinuria with diffuse membranous glomerulonephritisCMS: Other isolated protein with diffuse membranous glomrlneph | Can lead a claim | A | None |
| N06.3 | Isolated proteinuria with diffuse mesangial proliferative glomerulonephritisCMS: Isolated proteinuria w diffuse mesangial prolif glomrlneph | Can lead a claim | A | None |
| N06.4 | Isolated proteinuria with diffuse endocapillary proliferative glomerulonephritisCMS: Isolated proteinuria w diffuse endocaplry prolif glomrlneph | Can lead a claim | A | None |
| N06.5 | Isolated proteinuria with diffuse mesangiocapillary glomerulonephritisCMS: Isolated proteinuria w diffuse mesangiocapillary glomrlneph | Can lead a claim | A | None |
| N06.6 | Isolated proteinuria with dense deposit disease | Can lead a claim | A | None |
| N06.7 | Isolated proteinuria with diffuse crescentic glomerulonephritisCMS: Isolated proteinuria w diffuse crescentic glomerulonephritis | Can lead a claim | A | None |
| N06.8 | Isolated proteinuria with other morphologic lesion | Can lead a claim | A | None |
| N06.9 | Isolated proteinuria with unspecified morphologic lesion | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| N06.A | Isolated proteinuria with C3 glomerulonephritis | Can lead a claim | J | Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD |
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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