R31: Hematuria
Codes under R31 (Hematuria). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| R31.0 | Gross hematuria | ✓ |
| R31.0 | Gross hematuria | ✓ |
| R31.1 | Benign essential microscopic hematuria | ✓ |
| R31.1 | Benign essential microscopic hematuria | ✓ |
| R31.2 | Other microscopic hematuria | — |
| R31.2 | Other microscopic hematuria | — |
| R31.9 | Hematuria, unspecified | ✓ |
| R31.9 | Hematuria, unspecified | ✓ |
| R31.21 | Asymptomatic microscopic hematuria | ✓ |
| R31.21 | Asymptomatic microscopic hematuria | ✓ |
| R31.29 | Other microscopic hematuria | ✓ |
| R31.29 | Other microscopic hematuria | ✓ |
Frequently asked questions
What is ICD-10-CM code R31?
R31 is an ICD-10-CM category covering Hematuria. It contains 12 more specific diagnosis codes, 10 of which are billable.
Is R31 a billable code?
No — R31 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example R31.0 — Gross hematuria). 10 of the 12 codes under R31 are billable.
What codes fall under R31?
R31 includes R31.0, R31.0, R31.1, R31.1, R31.2, plus 7 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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