Lichen, unspecified

This code represents a dermatological condition characterized by an eruption of small, flat-topped, often polygonal papules, typically pruritic. It signifies a general diagnosis of lichen when the specific type or etiology is not documented.

This code is appropriate when the provider's documentation indicates "lichen" without further specification of the type (e.g., lichen planus, lichen sclerosus, lichen simplex chronicus). It should be used when the clinical picture is consistent with a lichenoid eruption but a more definitive diagnosis is not yet established or recorded.

• Avoid using this code if a more specific type of lichen is documented; always code to the highest level of specificity.
• Review the entire medical record for any clues that might lead to a more precise diagnosis, such as biopsy results or specialist consultations.
• Consider querying the provider if the documentation is vague and a more specific lichen diagnosis is clinically suspected.