The following is a partial list of the "C" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM). This list continues the information at List of MeSH codes (C19). Codes following these are found at List of MeSH codes (C21). For other MeSH codes, see List of MeSH codes. The source for this content is the set of 2006 MeSH Trees from the NLM. – immune system diseases – autoimmune diseases – Addison disease – anemia, hemolytic, autoimmune – anti-glomerular basement membrane disease – antiphospholipid syndrome – arthritis, rheumatoid – arthritis, juvenile rheumatoid – Felty's syndrome – Sjögren syndrome – spondylitis, ankylosing – Still's disease, adult-onset – autoimmune diseases of the nervous system – demyelinating autoimmune diseases, cns – diffuse cerebral sclerosis of schilder – encephalomyelitis, acute disseminated – leukoencephalitis, acute hemorrhagic – multiple sclerosis – multiple sclerosis, chronic progressive – multiple sclerosis, relapsing-remitting – neuromyelitis optica – myelitis, transverse – neuromyelitis optica – neuromyelitis optica – Lambert–Eaton myasthenic syndrome – leukoencephalitis, acute hemorrhagic – myasthenia gravis – myasthenia gravis, autoimmune, experimental – myasthenia gravis, neonatal – nervous system autoimmune disease, experimental – encephalomyelitis, autoimmune, experimental – myasthenia gravis, autoimmune, experimental – neuritis, autoimmune, experimental – polyradiculoneuropathy – Guillain–Barré syndrome – Miller Fisher syndrome – hereditary sensory and autonomic neuropathies – dysautonomia, familial – polyradiculoneuropathy, chronic inflammatory demyelinating – stiff-person syndrome – uveomeningoencephalitic syndrome – vasculitis, central nervous system – lupus vasculitis, central nervous system – temporal arteritis – dermatitis herpetiformis – diabetes mellitus, type 1 – familial Mediterranean fever – glomerulonephritis, iga – glomerulonephritis, membranous – Goodpasture syndrome – Graves' disease – Graves' ophthalmopathy – hepatitis, autoimmune – Lambert–Eaton myasthenic syndrome – lupus erythematosus, systemic – lupus nephritis – lupus vasculitis, central nervous system – ophthalmia, sympathetic – pemphigoid, bullous – pemphigus – pemphigus, benign familial – polyendocrinopathies, autoimmune – purpura, thrombocytopenic, idiopathic – Reiter disease – thyroiditis, autoimmune – blood group incompatibility – erythroblastosis, fetal – hydrops fetalis – kernicterus – rh isoimmunization – glomerulonephritis, membranoproliferative – graft vs host disease – hypersensitivity – drug hypersensitivity – drug eruptions – epidermal necrolysis, toxic – erythema nodosum – serum sickness – environmental illness – multiple chemical sensitivity – sick building syndrome – hypersensitivity, delayed – dermatitis, allergic contact – dermatitis, photoallergic – dermatitis, toxicodendron – hypersensitivity, immediate – anaphylaxis – conjunctivitis, allergic – dermatitis, atopic – food hypersensitivity – egg hypersensitivity