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  6. 2024 ICD-10-CM Code N31
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code N31

Neuromuscular dysfunction of bladder, not elsewhere classified

ICD-10-CM Code:
N31
ICD-10 Code for:
Neuromuscular dysfunction of bladder, NEC
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the genitourinary system
    (N00–N99)
    • Other diseases of the urinary system
      (N30-N39)
      • Neuromuscular dysfunction of bladder, not elsewhere classified
        (N31)

N31 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of neuromuscular dysfunction of bladder, not elsewhere classified. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Neuromuscular dysfunction of bladder, NEC

Non-specific codes like N31 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for neuromuscular dysfunction of bladder, nec:

  • Use N31.0 for Uninhibited neuropathic bladder, not elsewhere classified - BILLABLE CODE

  • Use N31.1 for Reflex neuropathic bladder, not elsewhere classified - BILLABLE CODE

  • Use N31.2 for Flaccid neuropathic bladder, not elsewhere classified - BILLABLE CODE

  • Use N31.8 for Other neuromuscular dysfunction of bladder - BILLABLE CODE

  • Use N31.9 for Neuromuscular dysfunction of bladder, unspecified - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
  • code to identify any associated urinary incontinence N39.3 N39.4

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • cord bladder NOS G95.89
  • neurogenic bladder due to cauda equina syndrome G83.4
  • neuromuscular dysfunction due to spinal cord lesion G95.89

Patient Education


Bladder Diseases

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, urgent urination
  • Bladder cancer

Doctors diagnose bladder diseases using different tests. These include urine tests, x-rays, and an examination of the bladder wall with a scope called a cystoscope. Treatment depends on the cause of the problem. It may include medicines and, in severe cases, surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.