ICD10BillableValid for clinical use

ICD-10 Code N31.9: Neuromuscular dysfunction of bladder, unspecified

N31.9 is a billable ICD-10 diagnosis code used to classify Neuromuscular dysfunction of bladder, unspecified in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

When is it used?

  • May be used when a clinician documents neuromuscular dysfunction of bladder, unspecified in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
14Diseases of the genitourinary system (N00-N99)
block
N30-N39Other diseases of the urinary system
category
N31Neuromuscular dysfunction of bladder, not elsewhere classified
currentN31

Official coding notes

Inclusion terms
  • Neurogenic bladder dysfunction NOS

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

UrologistGynecologist

Coverage-related procedures and services

CPT 51784high
ELECTROMYOGRAPHY STUDIES (EMG) OF ANAL OR URETHRAL SPHINCTER, OTHER THAN NEEDLE, ANY TECHNIQUE
Source: CMS coverage guidance
HCPCS J0585high
INJECTION, ONABOTULINUMTOXINA, 1 UNIT
Source: CMS coverage guidance
CPT 95874high
NEEDLE ELECTROMYOGRAPHY FOR GUIDANCE IN CONJUNCTION WITH CHEMODENERVATION (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 51785high
NEEDLE ELECTROMYOGRAPHY STUDIES (EMG) OF ANAL OR URETHRAL SPHINCTER, ANY TECHNIQUE
Source: CMS coverage guidance
CPT 51726high
COMPLEX CYSTOMETROGRAM (IE, CALIBRATED ELECTRONIC EQUIPMENT);
Source: CMS coverage guidance
CPT 51727high
COMPLEX CYSTOMETROGRAM (IE, CALIBRATED ELECTRONIC EQUIPMENT); WITH URETHRAL PRESSURE PROFILE STUDIES (IE, URETHRAL CLOSURE PRESSURE PROFILE), ANY TECHNIQUE
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
N31.9

Common synonyms

Neuromuscular dysfunction of bladder, unspecifiedNeuromuscular dysfunction of bladder

Frequently asked questions

Code details

CodeN31.9
SystemICD10
Display nameNeuromuscular dysfunction of bladder, unspecified
ChapterDiseases of the genitourinary system (N00-N99)
BlockOther diseases of the urinary system

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Disorder(of)DysfunctionDysfunctionNeurogenicNeuropathy, neuropathic
See also
Dysfunction, bladder, neuromuscular

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code N31.9 for Neuromuscular dysfunction of bladder, unspecified | HealthAssure