R35.1 Nocturia

Billable ICD-10-CM code, FY2026.

Applies from R35 Polyuria

Excludes1 (never code together)

• psychogenic polyuria (F45.8)

Code first

• , if applicable, any causal condition, such as:
• enlarged prostate (N40.1)

MS-DRG index

Defines the logic of DRG(s) 695-696 in MDC 11.

Approximate ICD-9-CM (GEMs)

• 788.43 Nocturia

Code annotations containing back-references to R35.1

Back-references to R35.1

• Use Additional: N40.1 Benign prostatic hyperplasia with lower urinary tract symptoms ("nocturia (R35.1)")
• Use Additional: N40.3 Nodular prostate with lower urinary tract symptoms ("nocturia (R35.1)")

Diagnosis Index entries for R35.1

• Micturition › nocturnal
• Nocturia
• Nycturia

Nearby codes

• R35 Polyuria
• R35.0 Frequency of micturition
• R35.1 Nocturia (this code)
• R35.8 Other polyuria
• R35.81 Nocturnal polyuria
• R35.89 Other polyuria