ICD-10 R35.81
Billable / SpecificNocturnal polyuria
About ICD-10-CM R35.81
ICD-10-CM code R35.81 represents Nocturnal polyuria. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R35). The 2026 edition of ICD-10-CM R35.81 became effective on October 1, 2025.
Type 2 Excludes
Not included here, the excluded code is not part of R35.81, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- nocturnal enuresis (N39.44)
Medicare LCD Coverage for R35.81
Local Coverage Determinations (LCDs) from CMS MACs that list R35.81 as a covered diagnosis.
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Commercial Payer Coverage
Coverage policies from major commercial payers referencing R35.81.
1 Medicare
CPT Codes Commonly Billed with R35.81
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To R35.81
Other codes in section R30-R39 (Symptoms and signs involving the genitourinary system).
ICD-10 R35.81, Billing FAQ
Is ICD-10 code R35.81 billable? +
Yes, R35.81 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 2 Excludes for R35.81? +
Type 2 Excludes (may be coded together when both conditions exist): nocturnal enuresis (N39.44)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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