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ICD-10 CM Code T71.29

T71.29 Asphyxiation due to being trapped in other low oxygen environment

Inclusion Term

Suffocation due to systemic oxygen deficiency due to low oxygen content in ambient air
Mechanical suffocation
Traumatic suffocation

Excludes Type 1

acute respiratory distress (syndrome) (J80)
anoxia due to high altitude (T70.2)
asphyxia NOS (R09.01)
asphyxia from carbon monoxide (T58.-)
asphyxia from inhalation of food or foreign body (T17.-)
asphyxia from other gases, fumes and vapors (T59.-)
respiratory distress (syndrome) in newborn (P22.-)

7th Character

The appropriate 7th character is to be added to each code from category T71

A - initial encounter
D - subsequent encounter
S - sequela

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