Drug photoallergic response
ICD-10 L56.1 is a billable code used to indicate a diagnosis of drug photoallergic response.
L56.1 refers to a drug photoallergic response, which is a type of skin reaction triggered by exposure to sunlight after the administration of certain medications. Clinically, patients may present with erythema, pruritus, and vesicular lesions that typically occur in sun-exposed areas of the skin. The pathophysiology involves the formation of a photoreactive compound when the drug interacts with UV radiation, leading to an immune-mediated response. The most commonly implicated drugs include certain antibiotics, non-steroidal anti-inflammatory drugs (NSAIDs), and some diuretics. Disease progression can vary; some patients may experience mild symptoms that resolve with avoidance of the triggering drug and sun exposure, while others may develop more severe reactions requiring medical intervention. Diagnostic considerations include a thorough patient history, identification of the offending drug, and possibly a patch test or photopatch test to confirm the diagnosis. It is essential for healthcare providers to differentiate drug photoallergic responses from other photodermatoses to ensure appropriate management.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
L56.1 covers drug-induced photoallergic reactions, which can include conditions like photodermatitis triggered by medications such as sulfonamides, tetracyclines, and NSAIDs. The diagnosis is confirmed through clinical evaluation and history of drug exposure.
L56.1 should be used specifically when the skin reaction is due to a drug that causes an allergic response upon sun exposure. If the reaction is purely phototoxic without an allergic component, L56.0 would be more appropriate.
Documentation should include a detailed patient history of drug use, description of symptoms, timing of the reaction in relation to drug exposure, and any diagnostic tests performed, such as patch testing.
