| M33 | Dermatopolymyositis |
| | Juvenile dermatomyositis |
| | Juvenile dermatomyositis, organ involvement unspecified |
| | Juvenile dermatomyositis, with respiratory involvement |
| | Juvenile dermatomyositis, with myopathy |
| | Juvenile dermatomyositis, without myopathy |
| | Juvenile dermatomyositis, with other organ involvement |
| | Other dermatomyositis |
| | Other dermatomyositis, organ involvement unspecified |
| | Other dermatomyositis, with respiratory involvement |
| | Other dermatomyositis, with myopathy |
| | Other dermatomyositis, without myopathy |
| | Other dermatomyositis, with other organ involvement |
| | Polymyositis |
| | Polymyositis, organ involvement unspecified |
| | Polymyositis, with respiratory involvement |
| | Polymyositis, with myopathy |
| | Polymyositis, with other organ involvement |
| | Dermatopolymyositis, unspecified |
| | Dermatopolymyositis, unspecified, organ involvement unspecified |
| | Dermatopolymyositis, unspecified, with respiratory involvement |
| | Dermatopolymyositis, unspecified, with myopathy |
| | Dermatopolymyositis, unspecified, without myopathy |
| | Dermatopolymyositis, unspecified, with other organ involvement |
