Y99.8
Y99.8: Other external cause status
Billable / specific codeICD-10-CMPOA exempt
Y99.8 is a billable, specific ICD-10-CM code for other external cause status. It is valid for submission on a claim.
Check Y99.8 with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- 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
Other codes that can never be billed with Y99.8
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- 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
Code history
Unchanged in every release from FY2024 to FY2027.