ICD-10-CM 2027
ICD-10 code for Overactive bladder
Confirmed by the official ICD-10-CM index entry “overactive › bladder”. Page updated September 29, 2026.
About coding Overactive bladder
The ICD-10-CM code for Overactive bladder is N32.81 (Overactive bladder).
It is also searched as OAB.
Within N32.8 (other specified disorders of bladder), N32.81 is specifically for Overactive bladder. Related codes cover other specified disorders of bladder (N32.89).
Don't report N32.81 together with the conditions in its Excludes1 note: frequent urination due to specified bladder condition- code to condition.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for N32.81)
- frequent urination due to specified bladder condition- code to condition
Common questions about Overactive bladder ICD-10 codes
What is the ICD-10 code for Overactive bladder?
- N32.81 — Overactive bladder.
Is N32.81 billable?
- Yes. N32.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N32.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N32.81 as a principal diagnosis.
Is N32.81 a CC or MCC?
- No. N32.81 is neither a CC nor an MCC under MS-DRG v44.0.