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T71.2

T71.2: Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air

Non-billable headerICD-10-CM

T71.2 is a non-billable header ICD-10-CM code for asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Suffocation due to systemic oxygen deficiency due to low oxygen content in ambient air

Excludes1 inherited from the categories above T71.2

A category’s note binds every code beneath it.

Written on T71: Asphyxiation

  • 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.-)

Other codes that can never be billed with T71.2

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • R09.0Asphyxia and hypoxemia

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T71.2

5 child codes. Green means billable.

Other codes under T71

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.