| R76 | Other abnormal immunological findings in serum | NON-BILLABLE CODE |
| R76.1 | Nonspecific reaction to test for tuberculosis | NON-BILLABLE CODE |
| R76.11 | Nonspecific reaction to tuberculin skin test without active tuberculosis | BILLABLE CODE |
| R76.12 | Nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis | BILLABLE CODE |
| R76.8 | Other specified abnormal immunological findings in serum | BILLABLE CODE |
| R76.9 | Abnormal immunological finding in serum, unspecified | BILLABLE CODE |
