ICD-10-CM · Chapter 18 · R00-R99
R31 Hematuria
Excludes 1 (cannot be coded together)
- hematuria included with underlying conditions, such as:
- acute cystitis with hematuria (N30.01)
- recurrent and persistent hematuria in glomerular diseases (N02.-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| R31..0 | Gross hematuria | Yes |
| R31..1 | Benign essential microscopic hematuria | Yes |
| R31..2 | Other microscopic hematuria | No |
| R31..21 | Asymptomatic microscopic hematuria | Yes |
| R31..29 | Other microscopic hematuria | Yes |
| R31..9 | Hematuria, unspecified | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category R31:
- Blood in Urine (Hematuria) — Sangre en la orina
Last reviewed: September 2026