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T79.A22A

✓ Billable

Traumatic compartment syndrome of left lower extremity, initial encounter

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

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

T79.A
  • • fibromyalgia (M79.7)
  • • nontraumatic compartment syndrome (M79.A-)

⚠️ Excludes2

inherited

Rules inherited from parent codes.

T79.A
  • • traumatic ischemic infarction of muscle (T79.6)
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)

Clinical Description

ICD-10-CM code T79.A22A represents traumatic compartment syndrome of left lower extremity, initial encounter. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory. Coders should note that T79.A22A has 2 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code T79.A22A?

ICD-10-CM code T79.A22A is "Traumatic compartment syndrome of left lower extremity, initial encounter". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T79.A22A a billable ICD-10 code?

Yes, T79.A22A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with T79.A22A?

T79.A22A has 2 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can T79.A22A be coded with other codes?

T79.A22A has 5 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in T79.A22

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

T79.A22DTraumatic compartment syndrome of left lower extremity, subsequent encounterT79.A22STraumatic compartment syndrome of left lower extremity, sequela

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Code Information

CodeT79.A22A
BillableYes
ParentT79.A22
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes12 rule(s)
Excludes25 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)