| N02AA02 |
N02AA02 Opium |
| N02AA03 |
N02AA03 Hydromorphone |
| N02AA04 |
N02AA04 Nicomorphine |
| N02AA05 |
N02AA05 Oxycodone |
| N02AA08 |
N02AA08 Dihydrocodéine |
| N02AA10 |
N02AA10 Papavérétum |
| N02AA51 |
N02AA51 Morphine, associations |
| N02AA53 |
N02AA53 Hydromorphone et naloxone |
| N02AA55 |
N02AA55 Oxycodone et naloxone |
| N02AA56 |
N02AA56 Oxycodone et naltrexone |
| N02AA58 |
N02AA58 Dihydrocodéïne, associations |
| N02AA59 |
N02AA59 Codéïne, associations sauf psycholeptiques |
| N02AA79 |
N02AA79 Codéïne, associations avec psycholeptiques |
| N02AB |
N02AB Dérivés de la phénylpipéridine |
| N02AB01 |
N02AB01 Kétobémidone |
| N02AB02 |
N02AB02 Péthidine |
| N02AB03 |
N02AB03 Fentanyl |
| N02AB52 |
N02AB52 Péthidine, associations sauf psycholeptiques |
| N02AB72 |
N02AB72 Pethidine, associations avec psycholeptiques |
| N02AC |
N02AC Dérivés de la Diphenylpropylamine |
| N02AC01 |
N02AC01 Dextromoramide |
| N02AC03 |
N02AC03 Piritramide |
| N02AC04 |
N02AC04 Dextropropoxyphène |
| N02AC05 |
N02AC05 Bezitramide |
| N02AC52 |
N02AC52 Méthadone, associations sauf psycholeptiques |
| N02AC54 |
N02AC54 Dextropropoxyphène, associations sauf psycholeptiques |
| N02AC74 |
N02AC74 Dextropropoxyphène, associations avec psycholeptiques |
| N02AD |
N02AD Dérivés du benzomorphane |
| N02AD01 |
N02AD01 Pentazocine |
| N02AD02 |
N02AD02 Phénazocine |