T71.20XD

Asphyx d/t sys oxy defic d/t low oxy in air unsp cause, subs Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause, subsequent encounter

Asphyx d/t sys oxy defic d/t low oxy in air unsp cause, subs Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause, subsequent encounter: Injury, poisoning and certain other consequences of external causes (ICD-10-CM S00 to T88), a billable code.