M33.20 Polymyositis, organ involvement unspecifiedBillable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.
Defines the logic of DRG(s) 545-547 in MDC 08.
710.4 Polymyositis (approximate)G72 Other and unspecified myopathies ("polymyositis (M33.2.-)")I27.21 Secondary pulmonary arterial hypertension ("polymyositis (M33.2-)")G72 Other and unspecified myopathies ("dermatopolymyositis (M33.-)")I77 Other disorders of arteries and arterioles ("collagen (vascular) diseases (M30-M36)")J82 Pulmonary eosinophilia, not elsewhere classified ("pulmonary eosinophilia due to systemic connective tissue disorders (M30-M36)")J84.170 Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere ("systemic connective tissue disorders (M30-M36)")L94 Other localized connective tissue disorders ("systemic connective tissue disorders (M30-M36)")M33.11 Other dermatomyositis with respiratory involvementM33.12 Other dermatomyositis with myopathyM33.13 Other dermatomyositis without myopathyM33.19 Other dermatomyositis with other organ involvementM33.2 PolymyositisM33.20 Polymyositis, organ involvement unspecified (this code)M33.21 Polymyositis with respiratory involvementM33.22 Polymyositis with myopathyM33.29 Polymyositis with other organ involvementM33.9 Dermatopolymyositis, unspecifiedM33.90 Dermatopolymyositis, unspecified, organ involvement unspecified