• autoimmune disease NOS
  • collagen (vascular) disease NOS
  • systemic autoimmune disease
  • systemic collagen (vascular) disease


  • autoimmune disease, single organ or single cell-type -code to relevant condition category
  1. M34 Systemic sclerosis [scleroderma]

    1. M34.0 Progressive systemic sclerosis

    2. M34.1 CR(E)ST syndrome

      Inclusion term(s):

      • Combination of calcinosis, Raynaud's phenomenon, esophageal dysfunction, sclerodactyly, telangiectasia
    3. M34.2 Systemic sclerosis induced by drug and chemical

    4. M34.8 Other forms of systemic sclerosis

      1. M34.81 Systemic sclerosis with lung involvement

      2. M34.82 Systemic sclerosis with myopathy

      3. M34.83 Systemic sclerosis with polyneuropathy

      4. M34.89 Other systemic sclerosis

    5. M34.9 Systemic sclerosis, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.