Encounter for examination and observation for other reasons
- Z04 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2024 edition of ICD-10-CM Z04 became effective on October 1, 2023.
- This is the American ICD-10-CM version of Z04 – other international versions of ICD-10 Z04 may differ.
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.
The following code(s) above Z04 contain annotation back-references
that may be applicable to Z04:
- Z00-Z99 Factors influencing health status and contact with health services
- Z00-Z13 Persons encountering health services for examinations
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change