ICD-10 · PDGM grouping
N00-N08 — Glomerular diseases
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in range
107
No clinical group
10
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
50 of the 107 codes in N00-N08 group to MMTA - Gastrointestinal tract and Genitourinary system, but the range is not uniform — it spreads across 2 clinical groups. A further 10 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in N00-N08
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
- N00Acute nephritic syndrome13 codes
- N01Rapidly progressive nephritic syndrome11 codes
- N02Recurrent and persistent hematuria18 codes
- N03Chronic nephritic syndrome11 codes
- N04Nephrotic syndrome16 codes
- N05Unspecified nephritic syndrome11 codes
- N06Isolated proteinuria with specified morphological lesion14 codes
- N07Hereditary nephropathy, not elsewhere classified12 codes
- N08Glomerular disorders in diseases classified elsewhere1 code
Every code in N00-N08
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| N000 | Acute nephritic syndrome with minor glomerular abnormality | A | Can lead a claim |
| N001 | Acute neph syndrome w focal and segmental glomerular lesions | A | Can lead a claim |
| N002 | Acute nephritic syndrome w diffuse membranous glomrlneph | A | Can lead a claim |
| N003 | Acute neph syndrome w diffuse mesangial prolif glomrlneph | J | Can lead a claim |
| N004 | Acute neph syndrome w diffuse endocaplry prolif glomrlneph | A | Can lead a claim |
| N005 | Acute nephritic syndrome w diffuse mesangiocap glomrlneph | A | Can lead a claim |
| N006 | Acute nephritic syndrome with dense deposit disease | A | Can lead a claim |
| N007 | Acute nephritic syndrome w diffuse crescentic glomrlneph | J | Can lead a claim |
| N008 | Acute nephritic syndrome with other morphologic changes | J | Can lead a claim |
| N009 | Acute nephritic syndrome with unsp morphologic changes | None | Cannot lead a claim |
| N00A | Acute nephritic syndrome with C3 glomerulonephritis | J | Can lead a claim |
| N00B1 | Ac neph synd with idio imm membr prolif glomrlneph (IC-MPGN) | J | Can lead a claim |
| N00B2 | Ac nep syn w sec imm cmplx membr prolif glomrlneph (IC-MPGN) | J | Can lead a claim |
| N010 | Rapidly progr nephritic syndrome w minor glomerular abnlt | A | Can lead a claim |
| N011 | Rapidly progr neph synd w focal and seg glomerular lesions | A | Can lead a claim |
| N012 | Rapidly progr neph syndrome w diffuse membranous glomrlneph | J | Can lead a claim |
| N013 | Rapidly progr neph synd w diffus mesangial prolif glomrlneph | J | Can lead a claim |
| N014 | Rapid progr neph synd w diffus endocaplry prolif glomrlneph | A | Can lead a claim |
| N015 | Rapidly progr neph syndrome w diffuse mesangiocap glomrlneph | J | Can lead a claim |
| N016 | Rapidly progr nephritic syndrome w dense deposit disease | A | Can lead a claim |
| N017 | Rapidly progr neph syndrome w diffuse crescentic glomrlneph | J | Can lead a claim |
| N018 | Rapidly progr nephritic syndrome w oth morphologic changes | J | Can lead a claim |
| N019 | Rapidly progr nephritic syndrome w unsp morphologic changes | None | Cannot lead a claim |
| N01A | Rapidly progressive nephritic syndrome with C3 glomrlneph | J | Can lead a claim |
| N020 | Recurrent and persistent hematuria w minor glomerular abnlt | J | Can lead a claim |
| N021 | Recur and perst hematur w focal and seg glomerular lesions | A | Can lead a claim |
| N022 | Recurrent and perst hematur w diffuse membranous glomrlneph | J | Can lead a claim |
| N023 | Recur and perst hematur w diffus mesangial prolif glomrlneph | A | Can lead a claim |
| N024 | Recur & perst hematur w diffus endocaplry prolif glomrlneph | A | Can lead a claim |
| N025 | Recurrent and perst hematur w diffuse mesangiocap glomrlneph | A | Can lead a claim |
| N026 | Recurrent and persistent hematuria w dense deposit disease | A | Can lead a claim |
| N027 | Recurrent and perst hematur w diffuse crescentic glomrlneph | A | Can lead a claim |
| N028 | Recurrent and persistent hematuria w oth morphologic changes | J | Can lead a claim |
| N029 | Recurrent and perst hematuria w unsp morphologic changes | None | Cannot lead a claim |
| N02A | Recurrent and persistent hematuria with C3 glomrlneph | J | Can lead a claim |
| N02B1 | Recurrent and persistent IgA nephrop with glomerular lesion | J | Can lead a claim |
| N02B2 | Recur and perst IgA nephr with focal and seg glomerular lesn | J | Can lead a claim |
| N02B3 | Recur and perst IgA nephr w diffus membr prolif glomrlneph | J | Can lead a claim |
| N02B4 | Recur and perst IgA nephr with diffus membranous glomrlneph | J | Can lead a claim |
| N02B5 | Recur & perst IgA nephr w diffus mesangial prolif glomrlneph | J | Can lead a claim |
| N02B6 | Recur and perst IgA nephr with diffus mesangiocap glomrlneph | J | Can lead a claim |
| N02B9 | Other recurrent and persistent immunoglobulin A nephropathy | J | Can lead a claim |
| N030 | Chronic nephritic syndrome with minor glomerular abnormality | A | Can lead a claim |
| N031 | Chronic neph syndrome w focal and seg glomerular lesions | J | Can lead a claim |
| N032 | Chronic nephritic syndrome w diffuse membranous glomrlneph | J | Can lead a claim |
| N033 | Chronic neph syndrome w diffuse mesangial prolif glomrlneph | J | Can lead a claim |
| N034 | Chronic neph syndrome w diffuse endocaplry prolif glomrlneph | A | Can lead a claim |
| N035 | Chronic nephritic syndrome w diffuse mesangiocap glomrlneph | A | Can lead a claim |
| N036 | Chronic nephritic syndrome with dense deposit disease | A | Can lead a claim |
| N037 | Chronic nephritic syndrome w diffuse crescentic glomrlneph | A | Can lead a claim |
| N038 | Chronic nephritic syndrome with other morphologic changes | A | Can lead a claim |
| N039 | Chronic nephritic syndrome with unsp morphologic changes | None | Cannot lead a claim |
| N03A | Chronic nephritic syndrome with C3 glomerulonephritis | J | Can lead a claim |
| N040 | Nephrotic syndrome with minor glomerular abnormality | J | Can lead a claim |
| N041 | Nephrotic syndrome w focal and segmental glomerular lesions | J | Can lead a claim |
| N0420 | Nephrotic syndrome with diffuse membranous glomrlneph, unsp | J | Can lead a claim |
| N0421 | Primary membranous nephropathy with nephrotic syndrome | J | Can lead a claim |
| N0422 | Secondary membranous nephropathy with nephrotic syndrome | J | Can lead a claim, code first applies |
| N0429 | Other nephrotic syndrome with diffuse membranous glomrlneph | J | Can lead a claim |
| N043 | Nephrotic syndrome w diffuse mesangial prolif glomrlneph | J | Can lead a claim |
| N044 | Nephrotic syndrome w diffuse endocaplry prolif glomrlneph | J | Can lead a claim |
| N045 | Nephrotic syndrome w diffuse mesangiocapillary glomrlneph | A | Can lead a claim |
| N046 | Nephrotic syndrome with dense deposit disease | A | Can lead a claim |
| N047 | Nephrotic syndrome w diffuse crescentic glomerulonephritis | J | Can lead a claim |
| N048 | Nephrotic syndrome with other morphologic changes | J | Can lead a claim |
| N049 | Nephrotic syndrome with unspecified morphologic changes | None | Cannot lead a claim |
| N04A | Nephrotic syndrome with C3 glomerulonephritis | J | Can lead a claim |
| N04B1 | Nep syn w idio imm cmplx membr prolif glomrlneph (IC-MPGN) | J | Can lead a claim |
| N04B2 | Nep syn with sec imm cmplx membr prolif glomrlneph (IC-MPGN) | J | Can lead a claim |
| N050 | Unsp nephritic syndrome with minor glomerular abnormality | J | Can lead a claim |
| N051 | Unsp neph syndrome w focal and segmental glomerular lesions | J | Can lead a claim |
| N052 | Unsp nephritic syndrome w diffuse membranous glomrlneph | J | Can lead a claim |
| N053 | Unsp neph syndrome w diffuse mesangial prolif glomrlneph | J | Can lead a claim |
| N054 | Unsp neph syndrome w diffuse endocaplry prolif glomrlneph | A | Can lead a claim |
| N055 | Unsp nephritic syndrome w diffuse mesangiocap glomrlneph | J | Can lead a claim |
| N056 | Unspecified nephritic syndrome with dense deposit disease | A | Can lead a claim |
| N057 | Unsp nephritic syndrome w diffuse crescentic glomrlneph | J | Can lead a claim |
| N058 | Unsp nephritic syndrome with other morphologic changes | J | Can lead a claim |
| N059 | Unsp nephritic syndrome with unspecified morphologic changes | None | Cannot lead a claim |
| N05A | Unspecified nephritic syndrome with C3 glomerulonephritis | J | Can lead a claim |
| N060 | Isolated proteinuria with minor glomerular abnormality | A | Can lead a claim |
| N061 | Isolated protein w focal and segmental glomerular lesions | A | Can lead a claim |
| N0620 | Isolated protein with diffuse membranous glomrlneph, unsp | A | Can lead a claim |
| N0621 | Primary membranous nephropathy with isolated proteinuria | A | Can lead a claim |
| N0622 | Secondary membranous nephropathy with isolated proteinuria | A | Can lead a claim, code first applies |
| N0629 | Other isolated protein with diffuse membranous glomrlneph | A | Can lead a claim |
| N063 | Isolated proteinuria w diffuse mesangial prolif glomrlneph | A | Can lead a claim |
| N064 | Isolated proteinuria w diffuse endocaplry prolif glomrlneph | A | Can lead a claim |
| N065 | Isolated proteinuria w diffuse mesangiocapillary glomrlneph | A | Can lead a claim |
| N066 | Isolated proteinuria with dense deposit disease | A | Can lead a claim |
| N067 | Isolated proteinuria w diffuse crescentic glomerulonephritis | A | Can lead a claim |
| N068 | Isolated proteinuria with other morphologic lesion | A | Can lead a claim |
| N069 | Isolated proteinuria with unspecified morphologic lesion | None | Cannot lead a claim |
| N06A | Isolated proteinuria with C3 glomerulonephritis | J | Can lead a claim |
| N070 | Hereditary nephropathy, NEC w minor glomerular abnormality | A | Can lead a claim |
| N071 | Heredit nephrop, NEC w focal and seg glomerular lesions | A | Can lead a claim |
| N072 | Hereditary nephropathy, NEC w diffuse membranous glomrlneph | A | Can lead a claim |
| N073 | Heredit nephrop, NEC w diffuse mesangial prolif glomrlneph | A | Can lead a claim |
| N074 | Heredit nephrop, NEC w diffus endocaplry prolif glomrlneph | A | Can lead a claim |
| N075 | Hereditary nephropathy, NEC w diffuse mesangiocap glomrlneph | A | Can lead a claim |
| N076 | Hereditary nephropathy, NEC w dense deposit disease | A | Can lead a claim |
| N077 | Hereditary nephropathy, NEC w diffuse crescentic glomrlneph | A | Can lead a claim |
| N078 | Hereditary nephropathy, NEC w oth morphologic lesions | A | Can lead a claim |
| N079 | Hereditary nephropathy, NEC w unsp morphologic lesions | None | Cannot lead a claim |
| N07A | Hereditary nephropathy, NEC with C3 glomerulonephritis | J | Can lead a claim |
| N07B | Hereditary nephrop, NEC with APOL1-mediated kidney disease | None | Cannot lead a claim |
| N08 | Glomerular disorders in diseases classified elsewhere | None | Cannot lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. 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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