M79

Non-billable

Other and unspecified soft tissue disorders, not elsewhere classified

M79 is the ICD-10-CM code for Other and unspecified soft tissue disorders, not elsewhere classified. It is a non-billable category code — use a more specific child code such as M79.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
11
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

Your connective tissue supports many different parts of your body, such as your skin, eyes, and heart. It is like a "cellular glue" that gives your body parts their shape and helps keep them strong. It also helps some of your tissues do their work. It is made of many kinds of proteins. Cartilage and fat are types of connective tissue. Over 200 disorders that impact connective tissue. There are different types:…

Read more about Connective Tissue Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • psychogenic rheumatism (F45.8)
  • soft tissue pain, psychogenic (F45.41)

Frequently asked questions

What is ICD-10 code M79?
M79 is the ICD-10-CM code for "Other and unspecified soft tissue disorders, not elsewhere classified". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M79 a billable code?
No — M79 is a non-billable header code. Use a more specific child code (such as M79.0) for billing.
What are the subcodes of M79?
M79 has 11 more specific child codes, including M79.0, M79.1, M79.2.
What is excluded from M79?
Excludes1 (not coded here): psychogenic rheumatism (F45.8); soft tissue pain, psychogenic (F45.41).

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

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