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N31

Non-billable

Neuromuscular dysfunction of bladder, not elsewhere classified

N31 is the ICD-10-CM code for Neuromuscular dysfunction of bladder, not elsewhere classified. It is a non-billable category code — use a more specific child code such as N31.0 for billing.

Status
Header (non-billable)
Chapter
N00-N99
Subcodes
5
Edition
FY2026

N00-N99 Diseases of the genitourinary system

What this means — in plain language

MedlinePlus · NIH

The bladder is a hollow organ in your lower abdomen that stores urine. Many conditions can affect your bladder. Some common ones are: Cystitis - inflammation of the bladder, often from an infection Urinary incontinence - loss of bladder control Overactive bladder - a condition in which the bladder squeezes urine out at the wrong time Interstitial cystitis - a chronic problem that causes bladder pain and frequent,…

Read more about Bladder Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •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-)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Frequently asked questions

What is ICD-10 code N31?
N31 is the ICD-10-CM code for "Neuromuscular dysfunction of bladder, not elsewhere classified". It falls under N00-N99 Diseases of the genitourinary system.
Is N31 a billable code?
No — N31 is a non-billable header code. Use a more specific child code (such as N31.0) for billing.
What are the subcodes of N31?
N31 has 5 more specific child codes, including N31.0, N31.1, N31.2.
What is excluded from N31?
Excludes1 (not coded here): cord bladder NOS (G95.89); neurogenic bladder due to cauda equina syndrome (G83.4); neuromuscular dysfunction due to spinal cord lesion (G95.89).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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