L51.9

Applicable To

• Erythema iris

• Erythema multiforme major NOS

• Erythema multiforme minor NOS

• Herpes iris

Approximate Synonyms

• Erythema multiforme

• Erythema multiforme minor

Clinical Information

• A disorder characterized by target lesions a pink-red ring around a pale center).

• A hypersensitivity reaction characterized by the sudden appearance of symmetrical cutaneous and mucocutaneous macular or popular lesions which evolve into lesions with bright red borders target lesions). The lesions usually appear in the hands, feet, extremities, and face. Symptoms include fever, malaise, sore throat, cough, vomiting, diarrhea, arthalgia, and myalgia. Causes include infections most commonly herpes simplex virus), drugs e.g., sulfonamides, anticonvulsants, and antibiotics), malignancies, and collagen vascular disorders.

• A skin and mucous membrane disease characterized by an eruption of macules, papules, nodules, vesicles, and/or bullae with characteristic “bull’s-eye” lesions usually occurring on the dorsal aspect of the hands and forearms.

• Self-limiting form of erythema multiforme.

• Skin and mucous membrane disease characterized by an eruption of macules, papules, nodules, vesicles, and/or bullae with characteristic bull’s-eye lesions usually occurring on the dorsal aspect of the hands and forearms.

Details

• L51.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM L51.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of L51.9 – other international versions of ICD-10 L51.9 may differ.