Z04 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: 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.
Codes
Z04.1
Encounter for examination and observation following transport accident
Z04.2
Encounter for examination and observation following work accident
Z04.3
Encounter for examination and observation following other accident
Z04.4
Encounter for examination and observation following alleged rape
Z04.6
Encounter for general psychiatric examination, requested by authority
Z04.7
Encounter for examination and observation following alleged physical abuse
Z04.8
Encounter for examination and observation for other specified reasons
Z04.9
Encounter for examination and observation for unspecified reason
Versions
2026
No changes
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code