ICD-10-CM Code Y99

External cause status

Version 2020 Non-Billable Code

Not Valid for Submission

Y99 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of external cause status. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

Short Description:External cause status
Long Description:External cause status

Consider the following ICD-10 codes with a higher level of specificity:

  • Y99.0 - Civilian activity done for income or pay
  • Y99.1 - Military activity
  • Y99.2 - Volunteer activity
  • Y99.8 - Other external cause status
  • Y99.9 - Unspecified external cause status

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Y99:

  • A single code from category Y99 should be used in conjunction with the external cause codes assigned to a record to indicate the status of the person at the time the event occurred.

Code Classification

  • External causes of morbidity and mortality (V01–Y98)
    • Supplementary factors related to causes of morbidity classified elsewhere (Y90-Y99)
      • External cause status (Y99)

Code History

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