Erythema multiforme, unspecified

This code represents a generalized, acute, self-limiting mucocutaneous hypersensitivity reaction characterized by target lesions, often involving the skin and mucous membranes. The "unspecified" designation indicates that the specific cause or type of erythema multiforme (e.g., minor, major) is not documented.

Use this code when the medical record clearly documents a diagnosis of erythema multiforme, but lacks further specificity regarding its clinical presentation or severity. This is appropriate when the provider has not specified whether it is minor, major, or another variant.

• Avoid using this code if the documentation specifies erythema multiforme minor or major; instead, use the more specific codes.
• Always review the entire medical record for any clues that might allow for more specific coding, such as drug-induced or infectious etiologies.
• Consider querying the provider for further specificity if the clinical picture suggests a more defined type of erythema multiforme.