Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.
Applicable to
Activity NEC
Activity of child or other family member assisting in compensated work of other family member
Hobby not done for income
Leisure activity
Off-duty activity of military personnel
Recreation or sport not for income or while a student
Student activity
Excludes1 (never code together)
civilian activity done for income or compensation (Y99.0)
military activity (Y99.1)
Applies from Y99 External cause status
Notes
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.
Approximate ICD-9-CM (GEMs)
E000.8 Other external cause status
Code annotations containing back-references to Y99.8
Back-references to Y99.8
Type 1 Excludes: Y99.1 Military activity ("activity of off duty military personnel (Y99.8)")
Type 1 Excludes: Y99.2 Volunteer activity ("activity of child or other family member assisting in compensated work of other family member (Y99.8)")
Diagnosis Index entries for Y99.8
External cause status › child assisting in compensated work for family
External cause status › family member assisting in compensated work for other family member
External cause status › hobby not done for income
External cause status › leisure activity
External cause status › off-duty activity of military personnel
External cause status › recreation or sport not for income or while a student
External cause status › specified NEC
External cause status › student activity
Status of external cause › child assisting in compensated work for family
Status of external cause › family member assisting in compensated work for other family member
Status of external cause › hobby not done for income
Status of external cause › leisure activity
Status of external cause › off-duty activity of military personnel
Status of external cause › recreation or sport not for income or while a student