2027 ICD-10-CM Diagnosis Code N31.1Reflex neuropathic bladder, not elsewhere classified
ICD-10-CM Codes›N00–N99›N30-N39›N31
- Billable — Valid for Submission
- Chronic Condition
N31.1 is a billable ICD-10-CM diagnosis code for reflex neuropathic bladder, not elsewhere classified. 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. Coders also document this condition as reflex neuropathic urinary bladder. 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.
- Reflex neuropathic urinary bladder
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N31.1: 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.
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 N31.1, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming N31.1: they are not reported together with it, unless the two conditions are unrelated.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
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 N31.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N31.1Overview
What is the ICD-10 code for reflex neuropathic bladder, not elsewhere classified?
The ICD-10-CM code for reflex neuropathic bladder, not elsewhere classified is N31.1 (sometimes written as N311). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N31.1 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report reflex neuropathic bladder, not elsewhere classified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N31.1 group to?
When reflex neuropathic bladder, not elsewhere classified 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 N31.1 be reported with G95.89?
Not as a rule. The Excludes1 note at N31, which applies to N31.1, 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).
