ICD-10 activity codes
| 0 | While engaged in sport |
| 1 | While engaged in leisure activity |
| 2 | While working for income |
| 3 | While engaged in other types of work |
| 4 | While resting, sleeping, eating, or engaged in other vital activities |
| 8 | While engaged in other specified activities |
| 9 | During unspecified activities |