Is T79.4XXS a billable ICD-10-CM code?

Yes. T79.4XXS is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does T79.4XXS 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 T79.4XXS?

T79.4XXS carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

T79.4XXS

T79.4XXS — Traumatic shock, sequela

Billable / specific codeICD-10-CMPOA exempt

T79.4XXS is a billable, specific ICD-10-CM code for traumatic shock, sequela. It is valid for submission on a claim.

7th character "S" — sequela

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.

anaphylactic shock due to adverse food reaction (T78.0-)
anaphylactic shock due to correct medicinal substance properly administered (T88.6)
anaphylactic shock due to serum (T80.5-)
anaphylactic shock NOS (T78.2)
electric shock (T75.4)
nontraumatic shock NEC (R57.-)
obstetric shock (O75.1)
postprocedural shock (T81.1-)
septic shock (R65.21)
shock complicating abortion or ectopic or molar pregnancy (O00-O07, O08.3)
shock due to anesthesia (T88.2)
shock due to lightning (T75.01)
shock NOS (R57.9)

Inclusion terms

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

Shock (immediate) (delayed) following injury

Risk adjustment

T79.4XXS does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

T79.4XXS is named in 14 Medicare coverage policies — 14 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52868Billing and Coding: Transesophageal Echocardiography (TEE)
A53057Billing and Coding: Home Health Occupational Therapy
A53058Billing and Coding: Home Health Physical Therapy
A53064Billing and Coding: Outpatient Occupational Therapy

Related codes at this level

Codes that share T79.4. If T79.4XXS is not quite right, the correct code is usually one of these.

Questions about T79.4XXS

Is T79.4XXS a billable ICD-10-CM code?: Yes. T79.4XXS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T79.4XXS 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 T79.4XXS?: T79.4XXS carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.