M35

M35: Other systemic involvement of connective tissue

Non-billable headerICD-10-CM

M35 is a non-billable header ICD-10-CM code for other systemic involvement of connective tissue. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

reactive perforating collagenosis (L87.1)

Other codes that can never be billed with M35

Their own Excludes1 notes name this code, so the conflict is not listed above.

G73.7Myopathy in diseases classified elsewhere
H16.22Keratoconjunctivitis sicca, not specified as Sjogren's
J99Respiratory disorders in diseases classified elsewhere
K11.8Other diseases of salivary glands
L95Vasculitis limited to skin, not elsewhere classified
M02Postinfective and reactive arthropathies
M24.2Disorder of ligament
M54.0Panniculitis affecting regions of neck and back

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M35

10 child codes. Green means billable.