ICD-10-CM 2027
ICD-10 code for nocturnal polyuria
From the official ICD-10-CM alphabetic index entry “Polyuria › nocturnal”. Page updated September 29, 2026.
About coding nocturnal polyuria
The ICD-10-CM code for nocturnal polyuria is R35.81 (Nocturnal polyuria).
Within R35.8 (other polyuria), R35.81 is specifically for nocturnal polyuria. Related codes cover other polyuria (R35.89).
The conditions in its Excludes2 note aren't part of R35.81, but may be coded alongside it if the patient has both: nocturnal enuresis (N39.44).
Code first , if applicable, any causal condition, such as: enlarged prostate (N40.1).
Common questions about nocturnal polyuria ICD-10 codes
What is the ICD-10 code for nocturnal polyuria?
- R35.81 — Nocturnal polyuria.
Is R35.81 billable?
- Yes. R35.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R35.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R35.81 as a principal diagnosis.
Is R35.81 a CC or MCC?
- No. R35.81 is neither a CC nor an MCC under MS-DRG v44.0.