2027 ICD-10-CM Diagnosis Code N31.9Neuromuscular dysfunction of bladder, unspecified
ICD-10-CM Codes›N00–N99›N30-N39›N31
- Billable — Valid for Submission
- Chronic Condition
N31.9 is a billable ICD-10-CM diagnosis code for neuromuscular dysfunction of bladder, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 698 through 700. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified diseases of bladder and urethra.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal compliance of urinary bladder
- Acquired obstructive nephropathy due to neurogenic bladder
- Cauda equina syndrome with neurogenic urinary bladder
- Functional disorder of neck of urinary bladder and sphincter mechanism
- Functional disorder of urinary bladder
- Functional disorder of urinary bladder due to prolapse of female genital organ
- Late effects of poliomyelitis
- Neurogenic dysfunction of urinary bladder
- Neurogenic urinary bladder
- Neurogenic urinary bladder due to and following cerebrovascular accident
- Neurogenic urinary bladder due to quadriplegia
- Neurogenic urinary bladder due to spina bifida
- Neurogenic urinary bladder following poliomyelitis
- Paraplegia with neurogenic urinary bladder
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N31.9: its own notes plus those printed at N31, block N30-N39, and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Neurogenic bladder dysfunction NOS
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- 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)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N31.9, its category, or a range that includes it.
Excludes1 4
These codes carry an Excludes1 note naming N31.9: they are not reported together with it, unless the two conditions are unrelated.
- G83.4 Cauda equina syndromeneurogenic bladder NOS (N31.9)
- G95.8 Other specified diseases of spinal cordneurogenic bladder NOS (N31.9)
- G95.8 Other specified diseases of spinal cordneuromuscular dysfunction of bladder without spinal cord lesion (N31.-) names N31.-, which includes this code
- N33 Bladder disorders in diseases classified elsewherecystitis in neurogenic bladder (N31.-) names N31.-, which includes this code
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
functional NEC N31.9
bladder N31.9
neuromuscular NOS N31.9
Neurogenic See Also: condition;
bladder See Also: Dysfunction, bladder, neuromuscular; N31.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
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:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N31.9 to ICD-9-CMHistory
Code HistoryHistory
Questions About N31.9Overview
What is the ICD-10 code for neuromuscular dysfunction of bladder, unspecified?
The ICD-10-CM code for neuromuscular dysfunction of bladder, unspecified is N31.9 (sometimes written as N319). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N31.9 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report neuromuscular dysfunction of bladder, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N31.9 group to?
When neuromuscular dysfunction of bladder, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 699, 698, 700, with relative weights from 0.6740 to 1.6400 depending on complications. Higher weights mean higher Medicare reimbursement.
Can N31.9 be reported with G95.89?
Not as a rule. The Excludes1 note at N31, which applies to N31.9, lists "cord bladder NOS (G95.89)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
