ICD-10-CM 2027
ICD-10 code for Nycturia
From the official ICD-10-CM alphabetic index entry “Nycturia”. Page updated September 29, 2026.
About coding Nycturia
The ICD-10-CM code for Nycturia is R35.1 (Nocturia). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R35.1.
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.
More specific Nycturia codes (official index)
- psychogenic F45.8 — Other somatoform disorders
Common questions about Nycturia ICD-10 codes
What is the ICD-10 code for Nycturia?
- R35.1 — Nocturia. More specific codes apply when the documentation supports them: F45.8.
What is the ICD-10 code for psychogenic nycturia?
- F45.8 — Other somatoform disorders.
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.