ICD10BillableValid for clinical use

ICD-10 Code T71.9: Asphyxiation due to unspecified cause

T71.9 is a billable ICD-10 diagnosis code used to classify Asphyxiation due to unspecified cause in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

When is it used?

  • May be used when a clinician documents asphyxiation due to unspecified cause in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
19Injury, poisoning and certain other consequences of external causes (S00-T88)
block
T07-T88Injury, poisoning and certain other consequences of external causes
block
T66-T78Other and unspecified effects of external causes
category
T71Asphyxiation
currentT71

Official coding notes

Inclusion terms
  • Suffocation (by strangulation) due to unspecified cause
  • Suffocation NOS
  • Systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause
  • Systemic oxygen deficiency due to mechanical threat to breathing due to unspecified cause
  • Traumatic asphyxia NOS

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Emergency Medicine SpecialistOrthopedic Specialist

Coding guidelines

Common synonyms

Asphyxiation due to unspecified causeAsphyxiation due to cause

Frequently asked questions

Code details

CodeT71.9
SystemICD10
Display nameAsphyxiation due to unspecified cause
ChapterInjury, poisoning and certain other consequences of external causes (S00-T88)
BlockOther and unspecified effects of external causes

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Asphyxia, asphyxiation(by)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code T71.9 for Asphyxiation due to unspecified cause | HealthAssure