ICD-10-CM 2027
ICD-10 code for compartment syndrome
From the official ICD-10-CM alphabetic index entry “Compartment syndrome (deep) (posterior) (traumatic)”. Page updated September 29, 2026.
About coding compartment syndrome
The ICD-10-CM code for compartment syndrome is T79.A0 (Compartment syndrome, unspecified). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T79.A0.
Within T79.A, choose T79.A0 (Compartment syndrome, unspecified) only when documentation doesn't support a more specific option: of upper extremity (T79.A1), of lower extremity (T79.A2), of abdomen (T79.A3) and of other sites (T79.A9).
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 compartment syndrome codes (official index)
- abdomen T79.A3 — Traumatic compartment syndrome of abdomen
- lower extremity (hip, buttock, thigh, leg, foot, toes) T79.A2 — Traumatic compartment syndrome of lower extremity
- nontraumatic
- abdomen M79.A3 — Nontraumatic compartment syndrome of abdomen
- lower extremity (hip, buttock, thigh, leg, foot, toes) M79.A2 — Nontraumatic compartment syndrome of lower extremity
- specified site NEC M79.A9 — Nontraumatic compartment syndrome of other sites
- upper extremity (shoulder, arm, forearm, wrist, hand, fingers) M79.A1 — Nontraumatic compartment syndrome of upper extremity
- specified site NEC T79.A9 — Traumatic compartment syndrome of other sites
- upper extremity (shoulder, arm, forearm, wrist, hand, fingers) T79.A1 — Traumatic compartment syndrome of upper extremity
Common questions about compartment syndrome ICD-10 codes
What is the ICD-10 code for compartment syndrome?
- T79.A0 — Compartment syndrome, unspecified (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T79.A3, T79.A2, M79.A3, M79.A2 and others below.
What is the ICD-10 code for abdomen compartment syndrome?
- T79.A3 — Traumatic compartment syndrome of abdomen (header code; choose a more specific subcode).
What is the ICD-10 code for lower extremity compartment syndrome?
- T79.A2 — Traumatic compartment syndrome of lower extremity (header code; choose a more specific subcode).
What is the ICD-10 code for upper extremity compartment syndrome?
- T79.A1 — Traumatic compartment syndrome of upper extremity (header code; choose a more specific subcode).
Is T79.A0 billable?
- No. T79.A0 is a header code. Report one of its more specific subcodes instead.