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Table 2 Comparison of ICD-10 and ICD-11 coding for myositis with a focus on idiopathic inflammatory myopathies

From: Myositis in Germany: epidemiological insights over 15 years from 2005 to 2019

ICD-10-code

ICD-11-code

M33.- Dermatomyositis-polymyositis

4A41 Idiopathic inflammatory myopathy

M33.0 juvenile dermatomyositis

M33.1 other dermatomyositis

4A41.0 Dermatomyositis

4A41.00 adult dermatomyositis

4A41.01 juvenile dermatomyositis

4A41.0Z Dermatomyositis, unspecified

M33.2 Polymyositis

M33.9 Dermatomyositis-polymyositis, unspecified

4A41.1 Polymyositis

4A41,10 Juvenile polymyositis

4A41,11 Paraneoplastic polymyositis

4A41,1 other unspecified polymyositis

4A41,1Z Polymyositis, unspecified

M60.1 Interstitial myositis

M60.8 Other myositis

G72.4 Inflammatory myopathy, not elsewhere classified

4A41,2 Inclusion body myopathy

4A41,20 Inflammatory inclusion body myopathy

4A41,21 Noninflammatory inclusion body myopathy

4A41,2Z Inclusion body myopathy, unspecified

M60.9 Myositis, not elsewhere classified

4A41. Y Other specified idiopathic inflammatory myopathy

4A41. Z Idiopathic inflammatory myopathy, unspecified