M36

Non-billable

Systemic disorders of connective tissue in diseases classified elsewhere

M36 is the ICD-10-CM code for Systemic disorders of connective tissue in diseases classified elsewhere. It is a non-billable category code — use a more specific child code such as M36.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
6
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.

Excludes2 — not included here

  • arthropathies in diseases classified elsewhere (M14.-)

Frequently asked questions

What is ICD-10 code M36?
M36 is the ICD-10-CM code for "Systemic disorders of connective tissue in diseases classified elsewhere". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M36 a billable code?
No — M36 is a non-billable header code. Use a more specific child code (such as M36.0) for billing.
What are the subcodes of M36?
M36 has 6 more specific child codes, including M36.0, M36.1, M36.2.

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

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