M35.8
Header — not billableOther specified systemic involvement of connective tissue
The ICD-10 code for other specified systemic involvement of connective tissue is M35.8.
M35.8 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 2 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M35.0Sjögren syndromenon-billable header
- M35.1Other overlap syndromes
- M35.2Behçet's disease
- M35.3Polymyalgia rheumatica
- M35.4Diffuse (eosinophilic) fasciitis
- M35.5Multifocal fibrosclerosis
- M35.6Relapsing panniculitis [Weber-Christian]
- M35.7Hypermobility syndrome
- M35.9Systemic involvement of connective tissue, unspecified
- M35.8Other specified systemic involvement of connective tissuenon-billable header
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7105Approximate match
- 7108Approximate match