2021 ICD-10-CM Code Z04.2

Encounter for examination and observation following work accident

Version 2021

Valid for Submission

Z04.2 is a billable diagnosis code used to specify a medical diagnosis of encounter for examination and observation following work accident. The code Z04.2 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

ICD-10:Z04.2
Short Description:Encounter for exam and observation following work accident
Long Description:Encounter for examination and observation following work accident

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Z04.2 are found in the index:

Convert Z04.2 to ICD-9 Code

Information for Patients


Occupational Health

Occupational health problems occur at work or because of the kind of work you do. These problems can include

Good job safety and prevention practices can reduce your risk of these problems. Try to stay fit, reduce stress, set up your work area properly, and use the right equipment and gear.


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)