R76: Other abnormal immunological findings in serum
Codes under R76 (Other abnormal immunological findings in serum). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| R76.0 | Raised antibody titer | ✓ |
| R76.0 | Raised antibody titer | ✓ |
| R76.1 | Nonspecific reaction to test for tuberculosis | — |
| R76.1 | Nonspecific reaction to test for tuberculosis | — |
| R76.8 | Other specified abnormal immunological findings in serum | — |
| R76.8 | Other specified abnormal immunological findings in serum | — |
| R76.9 | Abnormal immunological finding in serum, unspecified | ✓ |
| R76.9 | Abnormal immunological finding in serum, unspecified | ✓ |
| R76.11 | Nonspecific reaction to tuberculin skin test without active tuberculosis | ✓ |
| R76.11 | Nonspecific reaction to tuberculin skin test without active tuberculosis | ✓ |
| R76.12 | Nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis | ✓ |
| R76.12 | Nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis | ✓ |
| R76.81 | Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis | ✓ |
| R76.81 | Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis | ✓ |
| R76.89 | Other specified abnormal immunological findings in serum | ✓ |
| R76.89 | Other specified abnormal immunological findings in serum | ✓ |
Frequently asked questions
What is ICD-10-CM code R76?
R76 is an ICD-10-CM category covering Other abnormal immunological findings in serum. It contains 16 more specific diagnosis codes, 12 of which are billable.
Is R76 a billable code?
No — R76 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 R76.0 — Raised antibody titer). 12 of the 16 codes under R76 are billable.
What codes fall under R76?
R76 includes R76.0, R76.0, R76.1, R76.1, R76.8, 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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