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Ch. 20
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Y90-Y99
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Y99
Category · Y90-Y99
Y99
External cause status
6 codes in this category
Y99
External cause status
Header
Y99.0
Civilian activity done for income or pay
Billable
Y99.1
Military activity
Billable
Y99.2
Volunteer activity
Billable
Y99.8
Other external cause status
Billable
Y99.9
Unspecified external cause status
Billable