I73.81
BillableErythromelalgia
HCC Category Mapping
V24HCC 108 — Vascular Disease
0.297ESRDHCC 108 — Vascular Disease
0.000What This Code Means
Erythromelalgia is a rare condition characterized by episodes of burning pain, redness, and warmth in the extremities, typically affecting the feet and hands. The symptoms are often triggered by heat, exercise, or stress and can be severely disabling.
Coding Tips
- •Verify whether this is primary erythromelalgia (I73.81) or secondary to another condition like myeloproliferative disorder, as secondary cases may require additional coding
- •Document the affected sites (bilateral feet, hands, etc.) and severity of symptoms to support medical necessity for treatment and management
Clinical Significance
Erythromelalgia is a rare condition characterized by episodic burning pain, warmth, and redness in the extremities, typically triggered by heat or exercise. It can be primary (idiopathic/genetic) or secondary to myeloproliferative disorders or other conditions. While not life-threatening, it significantly impacts quality of life and reflects underlying vascular dysfunction requiring ongoing management.
Documentation Requirements
- ✓Documentation of erythromelalgia diagnosis with symptom description
- ✓Affected extremities and distribution
- ✓Primary vs secondary classification
- ✓Underlying condition if secondary (myeloproliferative disorder, connective tissue disease)
- ✓Triggering factors and symptom severity
- ✓Treatment plan (aspirin, cooling measures, sodium channel blockers, or other medications)
Commonly Confused Codes
I73.89 — Other specified peripheral vascular diseases: for other peripheral vascular conditions not specifically classifiedI73.9 — Peripheral vascular disease, unspecified: less specific code that should not be used when erythromelalgia is documentedI73.00 — Raynaud's syndrome without gangrene: opposite clinical presentation (cold-induced pallor vs heat-induced redness)L53.9 — Erythematous condition, unspecified: skin condition, not vascular