R35.81 Nocturnal polyuria

Billable ICD-10-CM code, FY2026.

Excludes2 (not included here)

• nocturnal enuresis (N39.44)

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.

Code annotations containing back-references to R35.81

Back-references to R35.81

• Type 2 Excludes: N39.44 Nocturnal enuresis ("nocturnal polyuria (R35.81)")

Diagnosis Index entries for R35.81

• Polyuria › nocturnal

Nearby codes

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