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T79.0XXA

T79.0XXAAir embolism (traumatic), initial encounter

Billable / specific codeICD-10-CM

T79.0XXA is a billable, specific ICD-10-CM code for air embolism (traumatic), initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to each code from category T79

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • air embolism complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2)
  • air embolism complicating pregnancy, childbirth and the puerperium (O88.0)
  • air embolism following infusion, transfusion, and therapeutic injection (T80.0)
  • air embolism following procedure NEC (T81.7-)

Risk adjustment

T79.0XXA risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 267 Deep Vein Thrombosis and Pulmonary Embolism0.294 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

T79.0XXA is named in 9 Medicare coverage policies 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A56612Billing and Coding: CT of the Head
  • A56625Billing and Coding: Echocardiography
  • A56625Billing and Coding: Echocardiography

Related codes at this level

Codes that share T79.0. If T79.0XXA is not quite right, the correct code is usually one of these.

Questions about T79.0XXA

Is T79.0XXA a billable ICD-10-CM code?
Yes. T79.0XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T79.0XXA sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Certain early complications of trauma (T79).
What cannot be coded together with T79.0XXA?
T79.0XXA carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 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.