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T79.4

⚠ Non-billable (Header)

Traumatic shock

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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Also Known As

Shock (immediate) (delayed) following injury

❌ Excludes1

direct

These codes are mutually exclusive. Never code them together.

  • • 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)

⚠️ Excludes2

inherited

Rules inherited from parent codes.

T79
  • • acute respiratory distress syndrome (J80)
  • • complications occurring during or following medical procedures (T80-T88)
  • • complications of surgical and medical care NEC (T80-T88)
  • • newborn respiratory distress syndrome (P22.0)

Child Codes (3)

T79.4XXATraumatic shock, initial encounterT79.4XXDTraumatic shock, subsequent encounterT79.4XXSTraumatic shock, sequela

Clinical Description

ICD-10-CM code T79.4 represents traumatic shock. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 5-character code at the 4th level of specificity. There are 3 more specific child codes under T79.4. Coders should note that T79.4 has 13 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code T79.4?

ICD-10-CM code T79.4 is "Traumatic shock". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T79.4 a billable ICD-10 code?

No, T79.4 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with T79.4?

T79.4 has 13 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can T79.4 be coded with other codes?

T79.4 has 4 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in T79

Other codes in the same category that may be relevant for differential coding:

T79.0Air embolism (traumatic)T79.1Fat embolism (traumatic)T79.2Traumatic secondary and recurrent hemorrhage and seromaT79.5Traumatic anuriaT79.6Traumatic ischemia of muscleT79.7Traumatic subcutaneous emphysemaT79.8Other early complications of traumaT79.9Unspecified early complication of traumaT79.ATraumatic compartment syndrome

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Code Information

CodeT79.4
BillableNo — Header code
ParentT79
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes113 rule(s)
Excludes24 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)