Hematuria (R31) ICD-10-CM
The R31 code range covers hematuria with 7 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R31 Range 7 codes · 5 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R31 range.
Gross Hematuria
The visible presence of blood in the urine.
Hematuria
Presence of blood in the urine.
About the R31 Code Range
Hematuria means blood in the urine. This category separates gross hematuria from microscopic hematuria and hematuria that is unspecified.
R31.0 is gross hematuria. Microscopic hematuria divides into benign essential hematuria at R31.1 and other microscopic hematuria at R31.2. The latter splits into asymptomatic microscopic hematuria at R31.21 and other microscopic hematuria at R31.29. R31.9 is hematuria, unspecified.
Questions About This Page
How many billable codes are in the R31 range?
Of the 7 codes in this range, 5 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the R31 range classify?
The range classifies hematuria. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
