T71.9XXS✓ Billable
Asphyxiation due to unspecified cause, sequela
Code Hierarchy
┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├T66-T78Other and unspecified effects of external causes (T66-T78)├T71Asphyxiation
└T71.9XXSAsphyxiation due to unspecified cause, sequela
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