M33.10
BillableOther dermatomyositis, organ involvement unspecified
HCC Category Mapping
V28HCC 93 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.175V24HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.307ESRDHCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.000RxHCCHCC 83 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.000What This Code Means
Dermatomyositis in adults (not juvenile) without documentation of which organs are involved.
Coding Tips
- •This code applies to adult-onset dermatomyositis when organ involvement is not yet determined or documented
- •Review records to assign a more specific code if organ involvement is identified
Clinical Significance
Adult dermatomyositis represents a serious autoimmune condition with increased risk of malignancy and significant morbidity from muscle weakness and systemic complications. The unspecified organ involvement suggests need for comprehensive evaluation including malignancy screening.
Documentation Requirements
- ✓Confirmed adult dermatomyositis diagnosis
- ✓Characteristic skin and muscle manifestations
- ✓Laboratory evidence (muscle enzymes, autoantibodies)
- ✓Documentation that organ involvement is present but unspecified
- ✓Malignancy screening results
- ✓Treatment plan including immunosuppression
- ✓Monitoring plan for disease progression
- ✓Assessment of functional status and disability