| R78 | Findings of drugs and other substances, not normally found in blood | NON-BILLABLE CODE |
| R78.1 | Finding of opiate drug in blood | BILLABLE CODE |
| R78.2 | Finding of cocaine in blood | BILLABLE CODE |
| R78.3 | Finding of hallucinogen in blood | BILLABLE CODE |
| R78.4 | Finding of other drugs of addictive potential in blood | BILLABLE CODE |
| R78.5 | Finding of other psychotropic drug in blood | BILLABLE CODE |
| R78.6 | Finding of steroid agent in blood | BILLABLE CODE |
| R78.7 | Finding of abnormal level of heavy metals in blood | NON-BILLABLE CODE |
| R78.71 | Abnormal lead level in blood | BILLABLE CODE |
| R78.79 | Finding of abnormal level of heavy metals in blood | BILLABLE CODE |
| R78.8 | Finding of other specified substances, not normally found in blood | NON-BILLABLE CODE |
| R78.81 | Bacteremia | BILLABLE CODE |
| R78.89 | Finding of other specified substances, not normally found in blood | BILLABLE CODE |
| R78.9 | Finding of unspecified substance, not normally found in blood | BILLABLE CODE |
