ICD-10-CM 2027
ICD-10 code for nocturnal micturition
From the official ICD-10-CM alphabetic index entry “Micturition › nocturnal”. Page updated September 29, 2026.
About coding nocturnal micturition
The ICD-10-CM code for nocturnal micturition is R35.1 (Nocturia).
Within R35 (polyuria), R35.1 is specifically for Nocturia. Related codes cover frequency of micturition (R35.0) and other polyuria (R35.8).
Code first , if applicable, any causal condition, such as: enlarged prostate (N40.1).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about nocturnal micturition ICD-10 codes
What is the ICD-10 code for nocturnal micturition?
- R35.1 — Nocturia.
Is R35.1 billable?
- Yes. R35.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R35.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R35.1 as a principal diagnosis.
Is R35.1 a CC or MCC?
- No. R35.1 is neither a CC nor an MCC under MS-DRG v44.0.