| parent | Narcotics | LP18149-2 |
| child | Beta hydroxythiofentanyl | LP411435-3 |
| child | 2-methyl AP-237 | LP433494-4 |
| child | 3-Methylfentanyl | LP411437-9 |
| child | 4-Fluorobutyrylfentanyl | LP411432-0 |
| child | 4-Fluorofentanyl | LP411415-5 |
| child | 4-Methoxybutyrylfentanyl | LP411412-2 |
| child | Acetyl norfentanyl | LP248692-8 |
| child | Acrylfentanyl | LP411430-4 |
| child | Brorphine | LP433488-6 |
| child | Butyrylfentanyl | LP411429-6 |
| child | Furanylfentanyl | LP411433-8 |
| child | Valerylfentanyl | LP411418-9 |
| child | 4-Methylphenethylacetylfentanyl | LP411434-6 |
| child | Metonitazene | LP433489-4 |
| child | Norcarfentanil | LP411413-0 |
| child | Ocfentanil | LP411414-8 |
| child | IC-26 | LP411325-6 |
| child | MT-45 | LP411327-2 |
| child | U-47700 | LP411333-0 |
| child | AH-7921 | LP411334-8 |
| child | AH-8529 | LP411328-0 |
| child | AH-8533 | LP411329-8 |
| child | Nor-W-18+Nor-W-15 | LP411324-9 |
| child | W-15 | LP411322-3 |
| child | W-18 | LP411321-5 |
| child | W-19 | LP411323-1 |
| PartDisplayName | en-US | Synthetic opioids |
| DisplayName | en-US | Synthetic opioids |
LOINC Version: 2.77
FHIR