Overactive Bladder (OAB) ICD-10-CM Codes

Learn about the ICD-10-CM codes for diagnosing and documenting overactive bladder conditions through this guide.

By Matt Olivares on Jul 16, 2025.

What ICD-10 codes are used for overactive bladder (OAB)?

OAB, or overactive bladder, represents a set of urinary symptoms, most notably a sudden urge to urinate, which can be challenging to control. The ICD-10-CM system provides specific codes to classify the manifestations of OAB.

Here are the key ICD-10-CM codes for OAB:

R32 - Unspecified urinary incontinence: Involuntary leakage of urine without specifying the type of incontinence.
N39.41 - Urge incontinence: Involuntary urine leakage following an intense urge to void.
N39.46 - Mixed incontinence: Combination of stress and urge incontinence.
N31.9 - Neuromuscular dysfunction of bladder, unspecified: Disruption in the typical function of bladder muscles without a specified cause.

Which OAB ICD codes are billable?

Yes. All of the aforementioned OAB ICD-10-CM codes are valid and billable.

Clinical information

Overactive bladder (OAB) is more than just frequent urination; it's a cluster of symptoms that can hinder daily life.
Symptoms may include nocturia (waking up multiple times at night to urinate), urgency, and sometimes urge incontinence.
Factors like aging, certain medications, and conditions such as UTIs, neurological disorders, and bladder abnormalities can contribute to OAB.
First-line treatments often encompass behavioral strategies, bladder training, and pelvic floor muscle exercises.
Pharmacological interventions, including anticholinergics or beta-3 agonists, can benefit many patients.

Synonyms include

Urgency-frequency syndrome
Overactive bladder syndrome
Detrusor overactivity
Irritable bladder
Unstable bladder
Stress incontinence (urinary)
OAB due to bladder neck contracture
OAB due to neurogenic bladder
OAB due to dysfunctional urinary system
OAB due to neuropathic bladder
OAB with bladder spasms

Popular search terms for OAB ICD-10-CM codes

OAB ICD-10 code
ICD-10 OAB
OAB diagnosis codes
ICD-10 codes for OAB

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