All ICD10 Codes
T71Not billable, use a more specific code below

Asphyxiation

In Other and unspecified effects of external causes (T66-T78), chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes

117 billable codes under T71: 39 are a CC; 8 map to HCC 155 (Major Depression, Moderate or Severe, without Psychosis).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Includes: conditions that are coded here

  • Mechanical suffocation
  • Traumatic suffocation

Excludes1: not coded here, use a different code

  • 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.-)

Also applies, from Other and unspecified effects of external causes (T66-T78)

These notes sit on T66-T78 and apply to every code under it, including T71.

Code also: add a code for this too, order depends on the encounter

  • if applicable, place of occurrence, such as:
  • highway rest stop (Y92.523)
  • school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
  • service areas as the place of occurrence of the external cause (Y92.52-)
  • single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
  • transport vehicle as the place of occurrence of the external cause (Y92.81-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers 7th character use and coding of injuries, fractures, burns, drug and toxic effects, abuse and neglect, and complications of care (S00-T88).

Read Section I.C.19 (page 77)

All codes under T71

T71 can't be used on a claim. Pick a billable code below; grey headings group them.

T71 MS-DRGs

As the principal diagnosis, the billable codes under T71 group to MS-DRG 922, 923, 949, or 950 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to T71

Notes on these codes point to T71.

  • R09.0 Excludes1: traumatic asphyxia (T71.-)

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.