ICD-10 · PDGM grouping
N31 Neuromuscular dysfunction of bladder, not elsewhere classified
All 5 codes in the N31 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
5
Can lead a claim
5
Cannot lead a claim
0
What CMS assigns to N31
All 5 codes group to MMTA - Gastrointestinal tract and Genitourinary system. 3 of the 5 count toward the Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD comorbidity subgroup; 2 are assigned none. Every code 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 N31
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 |
|---|---|---|---|---|
| N31.0 | Uninhibited neuropathic bladder, not elsewhere classified | Can lead a claim | J | Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD |
| N31.1 | Reflex neuropathic bladder, not elsewhere classified | Can lead a claim | J | Other disorders of the kidney and ureter, excluding chronic kidney disease and ESRD |
| N31.2 | Flaccid neuropathic bladder, not elsewhere classified | Can lead a claim | J | None |
| N31.8 | Other neuromuscular dysfunction of bladder | Can lead a claim | J | None |
| N31.9 | Neuromuscular dysfunction of bladder, unspecified | 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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