ICD-10-CM › V00-Y99 › Y90-Y99 › Y codes › Y99

Y99

External cause status

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 5 more specific codes instead:

  • 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

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft External cause status

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Note

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

Inherited from the Y90-Y99 section Supplementary factors related to causes of morbidity classified elsewhere (Y90-Y99)

Note

  • These categories may be used to provide supplementary information concerning causes of morbidity. They are not to be used for single-condition coding.