Non-Billable / Non-Specific Code
ICD-10-CM M79.A is the diagnosis code for Nontraumatic compartment syndrome. 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.
The following conditions should never be coded at the same time as M79.A. They are mutually exclusive:
Understanding where M79.A sits in the ICD-10-CM classification helps ensure proper coding:
No, M79.A is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
M79.A is the ICD-10-CM diagnosis code for "Nontraumatic compartment syndrome". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M79.A is M79 ("Other and unspecified soft tissue disorders, not elsewhere classified"). M79.A provides a more specific classification within this category.
M79.A is located in Section M70-M79 — "Other soft tissue disorders" within Chapter 13 of the ICD-10-CM Tabular List.
M79.A has 4 sub-code(s) that provide more specific detail: M79.A1, M79.A2, M79.A3, M79.A9.
Use M79.A when the patients documented diagnosis matches "Nontraumatic compartment syndrome" 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 is M79.A.
No, M79.A is non-billable. Use a more specific sub-code for primary diagnosis billing.
M79.A is in Chapter 13 of the ICD-10-CM Tabular List.
Type 1 Excludes for M79.A include: compartment syndrome NOS (T79.A-); fibromyalgia (M79.7); nontraumatic ischemic infarction of muscle (M62.2-) and more.
Yes, M79.A is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.