M35.9
BillableSystemic involvement of connective tissue, unspecified
M35.9 is the ICD-10-CM code for Systemic involvement of connective tissue, unspecified. It is a billable, specific code valid for reimbursement.
M00-M99 Diseases of the musculoskeletal system and connective tissue
Includes
- •Autoimmune disease (systemic) NOS
- •Collagen (vascular) disease NOS
Frequently asked questions
- What is ICD-10 code M35.9?
- M35.9 is the ICD-10-CM code for "Systemic involvement of connective tissue, unspecified". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M35.9 a billable code?
- Yes — M35.9 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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