T79.A0XS ICD-10-CM Code: Compartment syndrome, unspecified, sequela
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 913 — TRAUMATIC INJURY WITH MCC (MDC 21)
- MS-DRG 914 — TRAUMATIC INJURY WITHOUT MCC (MDC 21)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T79.A0XS in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Compartment syndrome NOS
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- fibromyalgia (M79.7)
- nontraumatic compartment syndrome (M79.A-)
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- traumatic ischemic infarction of muscle (T79.6)
- 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)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does T79.A0XS require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T79.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to T79.A0XS in its code family, with their registry titles.
- T79.9XXS — Unspecified early complication of trauma, sequela
- T79.A — Traumatic compartment syndrome
- T79.A0 — Compartment syndrome, unspecified
- T79.A0XA — Compartment syndrome, unspecified, initial encounter
- T79.A0XD — Compartment syndrome, unspecified, subsequent encounter
- T79.A1 — Traumatic compartment syndrome of upper extremity
- T79.A11 — Traumatic compartment syndrome of right upper extremity
- T79.A11A — Traumatic compartment syndrome of right upper extremity, initial encounter
- T79.A11D — Traumatic compartment syndrome of right upper extremity, subsequent encounter
- T79.A11S — Traumatic compartment syndrome of right upper extremity, sequela