Non-Billable / Non-Specific Code
ICD-10-CM M79.A2 is the diagnosis code for Nontraumatic compartment syndrome of lower extremity. This code falls under the section "Other soft tissue disorders" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where M79.A2 sits in the ICD-10-CM classification helps ensure proper coding:
No, M79.A2 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
M79.A2 is the ICD-10-CM diagnosis code for "Nontraumatic compartment syndrome of lower extremity". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M79.A2 is M79.A ("Nontraumatic compartment syndrome"). M79.A2 provides a more specific classification within this category.
M79.A2 is located in Section M70-M79 — "Other soft tissue disorders" within Chapter 13 of the ICD-10-CM Tabular List.
M79.A2 has 3 sub-code(s) that provide more specific detail: M79.A21, M79.A22, M79.A29.
Use M79.A2 when the patients documented diagnosis matches "Nontraumatic compartment syndrome of lower extremity" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Nontraumatic compartment syndrome of lower extremity is M79.A2.
No, M79.A2 is non-billable. Use a more specific sub-code for primary diagnosis billing.
M79.A2 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M79.A2 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.