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N32.81

N32.81: Overactive bladder

Billable / specific codeICD-10-CM

N32.81 is a billable, specific ICD-10-CM code for overactive bladder. It is valid for submission on a claim.

Check N32.81 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • frequent urination due to specified bladder condition- code to condition

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Detrusor muscle hyperactivity

Excludes2 inherited from the categories above N32.81

Not part of this code, but both may be coded when both are present.

Written on N32: Other disorders of bladder

  • calculus of bladder (N21.0)
  • cystocele (N81.1-)
  • hernia or prolapse of bladder, female (N81.1-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

N32.81 is named in 16 Medicare coverage policies: 16 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A54095Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56619Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56802Billing and Coding: Urodynamics
  • A57123Billing and Coding: Nerve Conduction Studies and Electromyography

Alphabetic index entries that lead here

  • Hyperactive, hyperactivity›detrusor muscle
  • Overactive›bladder

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under N32.8

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.