Diffuse (eosinophilic) fasciitis

This code represents diffuse fasciitis with eosinophilia, also known as Shulman's syndrome. It is a rare connective tissue disorder characterized by inflammation and thickening of the fascia, often accompanied by peripheral eosinophilia and skin changes resembling scleroderma. Patients typically present with painful, swollen, and indurated skin, particularly on the extremities.

Assign this code when documentation confirms a diagnosis of diffuse eosinophilic fasciitis. This diagnosis is typically established through clinical presentation, laboratory findings (e.g., elevated eosinophil count), and often a deep skin biopsy showing fascial inflammation and eosinophilic infiltration. Use this code for both initial and subsequent encounters related to this condition.

• Differentiate from localized fasciitis (e.g., plantar fasciitis) and other scleroderma-like conditions.
• Ensure documentation specifies "diffuse" and/or "eosinophilic" to support this specific code.
• Consider co-reporting with codes for associated manifestations, such as arthralgia (M25.5-), myalgia (M79.1-), or carpal tunnel syndrome (G56.0-).