Febrile neutrophilic dermatosis [Sweet]

This code describes Sweet's syndrome, an acute inflammatory skin condition characterized by the sudden onset of tender, erythematous papules, nodules, or plaques, often accompanied by fever and neutrophilia. It is considered a reactive dermatosis, frequently associated with underlying infections, malignancies, or inflammatory diseases.

Use this code when documentation clearly indicates a diagnosis of Sweet's syndrome. This typically involves findings of characteristic skin lesions, fever, and laboratory evidence of neutrophilia, often confirmed by skin biopsy showing a dense neutrophilic infiltrate without vasculitis. It is crucial to document any associated conditions or triggers.

• Always look for documentation of the underlying cause or associated condition, as this may require additional coding.
• Differentiate from other neutrophilic dermatoses like pyoderma gangrenosum or erythema elevatum diutinum, which have distinct clinical and pathological features.
• Ensure the physician's documentation explicitly states "Sweet's syndrome" or "febrile neutrophilic dermatosis" to support code assignment.