N31 ICD-10-CA category: Neuromuscular dysfunction of bladder, not elsewhere classified
N31 isn’t a code on its own. Choose one of the 5 codes beneath it, the one the documentation supports.
Official description
N31Neuromuscular dysfunction of bladder, not elsewhere classified
ICD-10-CA · Canada
Codes in N31
N31 isn’t a code on its own. Open the code that matches what the note documents.
Notes for N31
As CIHI prints them, with any note N31 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Cord bladder NOS (G95.8)due to spinal cord lesion (G95.8)neurogenic bladder due to cauda equina syndrome (G83.4)urinary incontinence:• NOS (R32)• specified (N39.3-N39.4)
- Urinary infection (complicating):• abortion or ectopic or molar pregnancy (O00-O07, O08.8)• pregnancy, childbirth and the puerperium (O23.-)(O75.3) (O86.2)• with urolithiasis (N20-N23)From N30-N39 Other diseases of urinary system
- Certain conditions originating in the perinatal period (P00-P96)certain infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 14: Diseases of the genitourinary system (N00-N99)
Where N31 sits
- 1ChapterChapter 14: Diseases of the genitourinary system (N00-N99)
- 2Block N30-N39Other diseases of urinary system
- 3Category N31Neuromuscular dysfunction of bladder, not elsewhere classified
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is N31 a valid ICD-10-CA code?
No. N31 (Neuromuscular dysfunction of bladder, not elsewhere classified) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 5 codes; record the one the documentation supports.
Where is N31 in ICD-10-CA?
N31 sits under N30-N39 Other diseases of urinary system, within Chapter 14: Diseases of the genitourinary system (N00-N99).
What coding notes apply to N31?
ICD-10-CA lists Excludes notes for N31, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.