T79.4
Traumatic shock
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 19 never code together
T79.4code
Excludes1
- anaphylactic shock due to adverse food reaction (T78.0-)T78.0-T78.0-
- anaphylactic shock due to correct medicinal substance properly administered (T88.6)T88.6T88.6
- anaphylactic shock due to serum (T80.5-)T80.5-T80.5-
- anaphylactic shock NOS (T78.2)T78.2T78.2
- electric shock (T75.4)T75.4T75.4
- nontraumatic shock NEC (R57.-)R57.-R57.-
- obstetric shock (O75.1)O75.1O75.1
- postprocedural shock (T81.1-)T81.1-T81.1-
- septic shock (R65.21)R65.21R65.21
- shock complicating abortion or ectopic or molar pregnancy (O00-O07, O08.3)O00-O07O00-O07O08.3O08.3
- shock due to anesthesia (T88.2)T88.2T88.2
- shock due to lightning (T75.01)T75.01T75.01
- shock NOS (R57.9)R57.9R57.9
T79code
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 4
T79.4code
Inclusion terms
- Shock (immediate) (delayed) following injury
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 9
- Decrease (d)
- Blood
- pressure
- decreased, due to shock following injury T79.4
- pressure
- Respiration
- decreased due to shock, following injury T79.4
- Shock R57.9
- Rapid
- feeble pulse, due to shock, following injury T79.4
- Pulse
- feeble, rapid due to shock following injury T79.4
- Feeble rapid pulse due to shock following injury T79.4
- Hypovolemia E86.1
- traumatic (shock) T79.4
- Syndrome — see also Disease
- shock (traumatic) T79.4
Alongside this code 9 same parent — T79
T79.0 Air embolism (traumatic) category T79.1 Fat embolism (traumatic) category T79.2 Traumatic secondary and recurrent hemorrhage and seroma category T79.5 Traumatic anuria category T79.6 Traumatic ischemia of muscle category T79.7 Traumatic subcutaneous emphysema category T79.A Traumatic compartment syndrome category T79.8 Other early complications of trauma category T79.9 Unspecified early complication of trauma category
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.