ICD-10-CM · Chapter 21 · Z00-Z99
Z04 Encounter for examination and observation for other reasons
Includes
- encounter for examination for medicolegal reasons
- This category is to be used when a person without a diagnosis is suspected of having an abnormal condition, without signs or symptoms, which requires study, but after examination and observation, is ruled-out. This category is also for use for administrative and legal observation status.
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Z04..1 | Encounter for examination and observation following transport accident | Yes |
| Z04..2 | Encounter for examination and observation following work accident | Yes |
| Z04..3 | Encounter for examination and observation following other accident | Yes |
| Z04..4 | Encounter for examination and observation following alleged rape | No |
| Z04..41 | Encounter for examination and observation following alleged adult rape | Yes |
| Z04..42 | Encounter for examination and observation following alleged child rape | Yes |
| Z04..6 | Encounter for general psychiatric examination, requested by authority | Yes |
| Z04..7 | Encounter for examination and observation following alleged physical abuse | No |
| Z04..71 | Encounter for examination and observation following alleged adult physical abuse | Yes |
| Z04..72 | Encounter for examination and observation following alleged child physical abuse | Yes |
| Z04..8 | Encounter for examination and observation for other specified reasons | No |
| Z04..81 | Encounter for examination and observation of victim following forced sexual exploitation | Yes |
| Z04..82 | Encounter for examination and observation of victim following forced labor exploitation | Yes |
| Z04..89 | Encounter for examination and observation for other specified reasons | Yes |
| Z04..9 | Encounter for examination and observation for unspecified reason | Yes |
Last reviewed: September 2026