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v1.0.0
ICD-10 Guide
ICD-10 CodesN32.81

N32.81

Billable

Overactive bladder

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N32.81 is a billable code used to indicate a diagnosis of overactive bladder.

Key Diagnostic Point:

Overactive bladder (OAB) is a condition characterized by a sudden and uncontrollable urge to urinate, often accompanied by increased frequency of urination and nocturia. Patients may experience urinary incontinence, which is the involuntary loss of urine. OAB can significantly impact quality of life, leading to social embarrassment, anxiety, and depression. The condition may arise from various underlying causes, including neurogenic bladder dysfunction, bladder inflammation (cystitis), or idiopathic factors. Neurogenic bladder refers to bladder dysfunction due to neurological conditions such as multiple sclerosis, spinal cord injuries, or stroke, which can disrupt normal bladder control. Cystitis, an inflammation of the bladder, can also contribute to symptoms of OAB, particularly when associated with urinary tract infections. Diagnosis typically involves a thorough patient history, physical examination, and may include urodynamic studies to assess bladder function. Treatment options range from lifestyle modifications and pelvic floor exercises to pharmacological interventions and, in some cases, surgical options. Accurate coding is essential for appropriate management and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes (e.g., neurogenic bladder, cystitis)
  • Overlap with other urinary disorders (e.g., urinary incontinence)
  • Need for comprehensive patient history and documentation
  • Potential for multiple diagnoses affecting coding

Audit Risk Factors

  • Inadequate documentation of symptoms and patient history
  • Failure to specify underlying causes or contributing factors
  • Incorrect coding of coexisting conditions
  • Lack of clarity in treatment plans and outcomes

Specialty Focus

Medical Specialties

Urology

Documentation Requirements

Detailed patient history, including symptom onset, frequency, and severity; results of urodynamic studies; and treatment plans.

Common Clinical Scenarios

Patients presenting with urinary urgency, frequency, and incontinence; post-surgical patients with bladder dysfunction.

Billing Considerations

Ensure documentation reflects the specific type of bladder dysfunction and any neurological assessments performed.

Neurology

Documentation Requirements

Comprehensive neurological assessment, including history of neurological disorders, bladder function tests, and treatment responses.

Common Clinical Scenarios

Patients with neurological conditions presenting with bladder control issues; follow-up on treatment efficacy.

Billing Considerations

Document any neurological evaluations that may contribute to bladder dysfunction.

Coding Guidelines

Inclusion Criteria

Use N32.81 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's severity and any underlying causes
  • Include relevant patient history and treatment plans to support the diagnosis

Exclusion Criteria

Do NOT use N32.81 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

51798CPT Code

Urodynamics, complex

Clinical Scenario

Used for patients with suspected neurogenic bladder.

Documentation Requirements

Detailed report of urodynamic findings and patient history.

Specialty Considerations

Urology specialists should ensure comprehensive documentation of bladder function tests.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of bladder disorders, improving the accuracy of diagnoses and treatment tracking. N32.81 provides a clear designation for overactive bladder, facilitating better patient management and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of bladder disorders, improving the accuracy of diagnoses and treatment tracking. N32.81 provides a clear designation for overactive bladder, facilitating better patient management and reimbursement.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    American Urological Association Guidelines

Coding & Billing References

  • •
    American Urological Association Guidelines

Frequently Asked Questions

What is the primary symptom of overactive bladder?

The primary symptom of overactive bladder is a sudden and uncontrollable urge to urinate, often accompanied by increased frequency of urination and, in some cases, urinary incontinence.