| E80 | Disorders of porphyrin and bilirubin metabolism | NON-BILLABLE CODE |
| E80.0 | Hereditary erythropoietic porphyria | BILLABLE CODE |
| E80.1 | Porphyria cutanea tarda | BILLABLE CODE |
| E80.2 | Other and unspecified porphyria | NON-BILLABLE CODE |
| E80.21 | Acute intermittent (hepatic) porphyria | BILLABLE CODE |
| E80.29 | Other porphyria | BILLABLE CODE |
| E80.3 | Defects of catalase and peroxidase | BILLABLE CODE |
| E80.4 | Gilbert syndrome | BILLABLE CODE |
| E80.5 | Crigler-Najjar syndrome | BILLABLE CODE |
| E80.6 | Other disorders of bilirubin metabolism | BILLABLE CODE |
| E80.7 | Disorder of bilirubin metabolism, unspecified | BILLABLE CODE |
