ICD-10-CM 2027
ICD-10 code for trauma early complication
From the official ICD-10-CM alphabetic index entry “Complication (s) (from) (of) › trauma (early)”. Page updated September 29, 2026.
About coding trauma early complication
The ICD-10-CM code for trauma early complication is T79.9 (Unspecified early complication of trauma). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on T79.9.
Within T79, choose T79.9 (Unspecified early complication of trauma) only when documentation doesn't support a more specific option: air embolism (traumatic) (T79.0), fat embolism (traumatic) (T79.1), traumatic secondary and recurrent hemorrhage and seroma (T79.2), traumatic shock (T79.4), traumatic anuria (T79.5), traumatic ischemia of muscle (T79.6), traumatic subcutaneous emphysema (T79.7), other early complications of trauma (T79.8) and 1 more.
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific trauma early complication codes (official index)
- specified NEC T79.8 — Other early complications of trauma
Common questions about trauma early complication ICD-10 codes
What is the ICD-10 code for trauma early complication?
- T79.9 — Unspecified early complication of trauma (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T79.8.
Is T79.9 billable?
- No. T79.9 is a header code. Report one of its more specific subcodes instead.