M35.9
M35.9: Systemic involvement of connective tissue, unspecified
Billable / specific codeICD-10-CM
M35.9 is a billable, specific ICD-10-CM code for systemic involvement of connective tissue, unspecified. It is valid for submission on a claim.
Check M35.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Autoimmune disease (systemic) NOS
- Collagen (vascular) disease NOS
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
M35.9 is named in 10 Medicare coverage policies: 3 listing it as supporting medical necessity, and 7 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58883Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
Alphabetic index entries that lead here
- Collagenosis, collagen disease(nonvascular) (vascular)
- Dyscollagenosis
- Ataxia, ataxy, ataxic›gluten
- Autoimmune›disease(systemic)
- Disease, diseased›autoimmune NOS(systemic)
- Disease, diseased›collagen NOS(nonvascular) (vascular)
- Disease, diseased›connective tissue, systemic(diffuse)
- Disease, diseased›mesenchymal
- Skin›hidebound
- Syndrome›connective tissue
- Polyneuropathy›in›collagen vascular disease NEC
- Polyneuropathy›in›systemic›connective tissue disorder
Code history
Unchanged in every release from FY2024 to FY2027.