N31Header code — not billable

Neuromuscular dysfunction of bladder, not elsewhere classified

Short description: Neuromuscular dysfunction of bladder, NEC

Chapter
14. Diseases of the genitourinary system
Category
N31
Effective date
October 1, 2026

Related codes in category N31

N31.0Uninhibited neuropathic bladder, not elsewhere classifiedYesN31.1Reflex neuropathic bladder, not elsewhere classifiedYesN31.2Flaccid neuropathic bladder, not elsewhere classifiedYesN31.8Other neuromuscular dysfunction of bladderYesN31.9Neuromuscular dysfunction of bladder, unspecifiedYes

Frequently asked questions

What is ICD-10 code N31?

N31 is an ICD-10-CM diagnosis code for Neuromuscular dysfunction of bladder, not elsewhere classified.

Is N31 a billable code?

No. N31 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is N31 in?

N31 falls under Chapter 14: Diseases of the genitourinary system.

When did N31 become effective?

N31 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to N31?

N31 belongs to category N31, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.