Z04 Encounter for examination and observation for other reasons

Category / Non-billable header 15 subcodes

Block: Persons encountering health services for examinations (Z00-Z13)

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