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M79.A

Non-billable

Nontraumatic compartment syndrome

M79.A is the ICD-10-CM code for Nontraumatic compartment syndrome. It is a non-billable category code — use a more specific child code such as M79.A1 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M79
Subcodes
4
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Excludes1 — not coded here

  • •compartment syndrome NOS (T79.A-)
  • •fibromyalgia (M79.7)
  • •nontraumatic ischemic infarction of muscle (M62.2-)
  • •traumatic compartment syndrome (T79.A-)

Code first

  • •, if applicable, associated postprocedural complication

Frequently asked questions

What is ICD-10 code M79.A?
M79.A is the ICD-10-CM code for "Nontraumatic compartment syndrome". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M79.A a billable code?
No — M79.A is a non-billable header code. Use a more specific child code (such as M79.A1) for billing.
What are the subcodes of M79.A?
M79.A has 4 more specific child codes, including M79.A1, M79.A2, M79.A3.
What is excluded from M79.A?
Excludes1 (not coded here): compartment syndrome NOS (T79.A-); fibromyalgia (M79.7); nontraumatic ischemic infarction of muscle (M62.2-); traumatic compartment syndrome (T79.A-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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