{"code":"L56.1","type":"code","title":"Drug photoallergic response","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":["code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)","code to identify the source of the ultraviolet radiation (W89, X32)"],"clinicalDefinition":"Drug photoallergic response is a billable ICD-10-CM diagnosis code (L56.1). Use additional code: code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5); code to identify the source of the ultraviolet radiation (W89, X32).","officialDefinition":"Drug photoallergic response is a billable ICD-10-CM diagnosis code (L56.1). Use additional code: code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5); code to identify the source of the ultraviolet radiation (W89, X32).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}