N31 Neuromuscular dysfunction of bladder, not elsewhere classified

Category / Non-billable header 5 subcodes

Block: Other diseases of the urinary system (N30-N39)

Excludes 1 (cannot be coded together)

  • 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

  • code to identify any associated urinary incontinence (N39.3-N39.4-)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
N31..0 Uninhibited neuropathic bladder, not elsewhere classified Yes
N31..1 Reflex neuropathic bladder, not elsewhere classified Yes
N31..2 Flaccid neuropathic bladder, not elsewhere classified Yes
N31..8 Other neuromuscular dysfunction of bladder Yes
N31..9 Neuromuscular dysfunction of bladder, unspecified Yes

Last reviewed: September 2026