Non-Billable / Non-Specific Code
ICD-10-CM N31 is the diagnosis code for Neuromuscular dysfunction of bladder, not elsewhere classified. This code falls under the section "Other diseases of the urinary system" within Chapter 14 — Diseases of the genitourinary system (N00-N99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as N31. They are mutually exclusive:
Understanding where N31 sits in the ICD-10-CM classification helps ensure proper coding:
No, N31 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
N31 is the ICD-10-CM diagnosis code for "Neuromuscular dysfunction of bladder, not elsewhere classified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
N31 is located in Section N30-N39 — "Other diseases of the urinary system" within Chapter 14 of the ICD-10-CM Tabular List.
N31 has 5 sub-code(s) that provide more specific detail: N31.0, N31.1, N31.2, N31.8, N31.9.
Use N31 when the patients documented diagnosis matches "Neuromuscular dysfunction of bladder, not elsewhere classified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Neuromuscular dysfunction of bladder, not elsewhere classified is N31.
No, N31 is non-billable. Use a more specific sub-code for primary diagnosis billing.
N31 is in Chapter 14 of the ICD-10-CM Tabular List.
Type 1 Excludes for N31 include: cord bladder NOS (G95.89); neurogenic bladder due to cauda equina syndrome (G83.4); neuromuscular dysfunction due to spinal cord lesion (G95.89).
Yes, N31 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.