N31
ICD-10Non-billable categoryNeuromuscular dysfunction of bladder, NEC
Official ICD-10-CM descriptor (FY2026)
Neuromuscular dysfunction of bladder, not elsewhere classified
N31 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- cord bladder NOS (G95.89)
- neurogenic bladder due to cauda equina syndrome (G83.4)
- neuromuscular dysfunction due to spinal cord lesion (G95.89)
Use additional code
Report an additional code to identify the associated condition.
- code to identify any associated urinary incontinence (N39.3-N39.4-)
More specific codes under N31
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.