Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes M00-M99 – Diseases of the musculoskeletal system and connective tissue (M00-M99) > 2024 ICD-10-CM Codes M30-M36 – Systemic connective tissue disorders (M30-M36) > 2024 ICD-10-CM Codes M33 – Dermatopolymyositis (M33) > 2024 ICD-10-CM Codes M33.2 – Polymyositis (M33.2)