4A41 Idiopathic inflammatory myopathy

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

These comprise a diverse group of syndromes that have in common persistent muscle inflammation of unknown pathophysiology, resulting in damage that affects muscle function. The inflammatory muscle disease can either be acute or chronic in nature.

code elsewhere

• Extraocular myositis  (9C82.3)

sections/codes in this section (4A41-4A41)

• Dermatomyositis  (4A41.0)
• Polymyositis  (4A41.1)
• Inclusion body myopathy  (4A41.2)
• Other specified idiopathic inflammatory myopathy  (4A41.Y)
• Idiopathic inflammatory myopathy, unspecified  (4A41.Z)

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