R35.8Other polyuria

R35.8 is the ICD-10-CM diagnosis code for other polyuria. It belongs to category R35 (polyuria), block R30-R39 (symptoms and signs involving the genitourinary system) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within R35, choose R35.8 (Other polyuria) only when documentation doesn't support a more specific option: frequency of micturition (R35.0) and Nocturia (R35.1).

To report this condition, pick the subcode that matches the documentation: R35.81 (polyuria) and R35.89 (polyuria).

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

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2022 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 788.42 (polyuria).