2020 ICD-10-CM Diagnosis Code N31.9

Neuromuscular dysfunction of bladder, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • N31.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM N31.9 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of N31.9 - other international versions of ICD-10 N31.9 may differ.
Applicable To
  • Neurogenic bladder dysfunction NOS
The following code(s) above N31.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to N31.9:
  • N00-N99
    2020 ICD-10-CM Range N00-N99

    Diseases of the genitourinary system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the genitourinary system
  • N30-N39
    2020 ICD-10-CM Range N30-N39

    Other diseases of the urinary system

    Type 1 Excludes
    • urinary infection (complicating):
    • abortion or ectopic or molar pregnancy (O00-O07, O08.8)
    • pregnancy, childbirth and the puerperium (O23.-, O75.3, O86.2-)
    Other diseases of the urinary system
  • N31
    ICD-10-CM Diagnosis Code N31

    Neuromuscular dysfunction of bladder, not elsewhere classified

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • 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 to identify any associated urinary incontinence (N39.3-N39.4-)
    Neuromuscular dysfunction of bladder, not elsewhere classified
Approximate Synonyms
  • Detrusor instability
  • Detrusor instability of bladder
  • Functional disorder of bladder
  • Neurogenic bladder
  • Neurogenic bladder as late effect of cerebrovascular accident
  • Neurogenic bladder as late effect of poliomyelitis
  • Neurogenic bladder due to late effects of acute polio
  • Neurogenic bladder due to quadriplegia
  • Neurogenic bladder due to spina bifida
  • Neurogenic bladder due to stroke
  • Noncompliant bladder
  • Noncompliant neuropathic bladder
  • Paraplegia (paralysis of legs) with neurogenic bladder
  • Paraplegia with neurogenic bladder
  • Quadriplegia with neurogenic bladder
ICD-10-CM N31.9 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 698 Other kidney and urinary tract diagnoses with mcc
  • 699 Other kidney and urinary tract diagnoses with cc
  • 700 Other kidney and urinary tract diagnoses without cc/mcc

Convert N31.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to N31.9:
  • Type 1 Excludes: G83.4
    , G95.8
    ICD-10-CM Diagnosis Code G83.4

    Cauda equina syndrome

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Neurogenic bladder due to cauda equina syndrome
    Type 1 Excludes
    • cord bladder NOS (G95.89)
    • neurogenic bladder NOS (N31.9)
    ICD-10-CM Diagnosis Code G95.8

    Other specified diseases of spinal cord

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • neurogenic bladder NOS (N31.9)
    • neurogenic bladder due to cauda equina syndrome (G83.4)
    • neuromuscular dysfunction of bladder without spinal cord lesion (N31.-)

Diagnosis Index entries containing back-references to N31.9:

ICD-10-CM Codes Adjacent To N31.9
N30.80 …… without hematuria
N30.81 …… with hematuria
N30.9 Cystitis, unspecified
N30.90 …… without hematuria
N30.91 …… with hematuria
N31 Neuromuscular dysfunction of bladder, not elsewhere classified
N31.0 Uninhibited neuropathic bladder, not elsewhere classified
N31.1 Reflex neuropathic bladder, not elsewhere classified
N31.2 Flaccid neuropathic bladder, not elsewhere classified
N31.8 Other neuromuscular dysfunction of bladder
N31.9 Neuromuscular dysfunction of bladder, unspecified
N32 Other disorders of bladder
N32.0 Bladder-neck obstruction
N32.1 Vesicointestinal fistula
N32.2 Vesical fistula, not elsewhere classified
N32.3 Diverticulum of bladder
N32.8 Other specified disorders of bladder
N32.81 Overactive bladder
N32.89 Other specified disorders of bladder
N32.9 Bladder disorder, unspecified
N33 Bladder disorders in diseases classified elsewhere

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.