The block M30–M36 of ICD-10 is titled “Systemic connective tissue disorders”. It is part of Chapter XIII, Diseases of the musculoskeletal system and connective tissue, and holds 7 groups.
What M30–M36 includes
Conditions and terms that are coded here.
- autoimmune disease:
- NOS
- systemic
- collagen (vascular) disease:
- NOS
- systemic
What M30–M36 excludes
Conditions that look similar but belong under another code.
- antiphospholipid syndrome D68.6
- autoimmune disease, single organ or single cell-type (code to relevant condition category)
Codes in M30–M36
- M31.0Hypersensitivity angiitis
- M31.1Thrombotic microangiopathy
- M31.3Wegener granulomatosis
- M31.4Aortic arch syndrome [Takayasu]
- M31.5Giant cell arteritis with polymyalgia rheumatica
- M31.6Other giant cell arteritis
- M31.7Microscopic polyangiitis
- M31.8Other specified necrotizing vasculopathies
- M31.9Necrotizing vasculopathy, unspecified
- M35.0Sicca syndrome [Sjögren]
- M35.1Other overlap syndromes
- M35.2Behçet disease
- M35.3Polymyalgia rheumatica
- M35.4Diffuse (eosinophilic) fasciitis
- M35.5Multifocal fibrosclerosis
- M35.6Relapsing panniculitis [Weber-Christian]
- M35.7Hypermobility syndrome
- M35.8Other specified systemic involvement of connective tissue
- M35.9Systemic involvement of connective tissue, unspecified
- M36.0Dermato(poly)myositis in neoplastic diseaseC00-D48
- M36.1Arthropathy in neoplastic diseaseC00-D48
- M36.2Haemophilic arthropathyD66-D68
- M36.3Arthropathy in other blood disordersD50-D76
- M36.4Arthropathy in hypersensitivity reactions classified elsewhere
- M36.8Systemic disorders of connective tissue in other diseases classified elsewhere
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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