R79: Other abnormal findings of blood chemistry
Codes under R79 (Other abnormal findings of blood chemistry). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| R79.0 | Abnormal level of blood mineral | ✓ |
| R79.0 | Abnormal level of blood mineral | ✓ |
| R79.1 | Abnormal coagulation profile | ✓ |
| R79.1 | Abnormal coagulation profile | ✓ |
| R79.8 | Other specified abnormal findings of blood chemistry | — |
| R79.8 | Other specified abnormal findings of blood chemistry | — |
| R79.9 | Abnormal finding of blood chemistry, unspecified | ✓ |
| R79.9 | Abnormal finding of blood chemistry, unspecified | ✓ |
| R79.81 | Abnormal blood-gas level | ✓ |
| R79.81 | Abnormal blood-gas level | ✓ |
| R79.82 | Elevated C-reactive protein (CRP) | ✓ |
| R79.82 | Elevated C-reactive protein (CRP) | ✓ |
| R79.83 | Abnormal findings of blood amino-acid level | ✓ |
| R79.83 | Abnormal findings of blood amino-acid level | ✓ |
| R79.89 | Other specified abnormal findings of blood chemistry | ✓ |
| R79.89 | Other specified abnormal findings of blood chemistry | ✓ |
Frequently asked questions
What is ICD-10-CM code R79?
R79 is an ICD-10-CM category covering Other abnormal findings of blood chemistry. It contains 16 more specific diagnosis codes, 14 of which are billable.
Is R79 a billable code?
No — R79 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 R79.0 — Abnormal level of blood mineral). 14 of the 16 codes under R79 are billable.
What codes fall under R79?
R79 includes R79.0, R79.0, R79.1, R79.1, R79.8, plus 11 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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