| Code | Definition |
| -1 | Frequency not known |
| 0.33 | 1 dose every third day |
| 0.5 | 1 dose every second day |
| 1 | 1 daily dose/qd |
| 2 | 2 daily doses/bid |
| 3 | 3 daily doses/tid |
| 4 | 4 daily doses |
| 5 | 5 daily doses |
| 6 | 6 daily doses |
| 7 | 7 daily doses |
| 8 | 8 daily doses |
| 9 | 9 daily doses |
| 10 | 10 daily doses |