{"code":"L21.8","type":"code","title":"Other seborrheic dermatitis","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["infective dermatitis (L30.3)","seborrheic keratosis (L82.-)","chronic (childhood) granulomatous disease (D71-)","dermatitis gangrenosa (L08.0)","dermatitis herpetiformis (L13.0)","dry skin dermatitis (L85.3)","factitial dermatitis (L98.1)","perioral dermatitis (L71.0)","radiation-related disorders of the skin and subcutaneous tissue (L55-L59)","stasis dermatitis (I87.2)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["L21","L21.0","L21.1","L21.9"],"inclusionTerms":[],"sibling_titles":{"code":"L21.9","title":"Seborrheic dermatitis, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Other seborrheic dermatitis is a billable ICD-10-CM diagnosis code (L21.8). Excludes2 (not included here): infective dermatitis (L30.3); seborrheic keratosis (L82.-); chronic (childhood) granulomatous disease (D71-); dermatitis gangrenosa (L08.0); dermatitis herpetiformis (L13.0); dry skin dermatitis (L85.3); factitial dermatitis (L98.1); perioral dermatitis (L71.0); radiation-related disorders of the skin and subcutaneous tissue (L55-L59); stasis dermatitis (I87.2).","officialDefinition":"Other seborrheic dermatitis is a billable ICD-10-CM diagnosis code (L21.8). Excludes2 (not included here): infective dermatitis (L30.3); seborrheic keratosis (L82.-); chronic (childhood) granulomatous disease (D71-); dermatitis gangrenosa (L08.0); dermatitis herpetiformis (L13.0); dry skin dermatitis (L85.3); factitial dermatitis (L98.1); perioral dermatitis (L71.0); radiation-related disorders of the skin and subcutaneous tissue (L55-L59); stasis dermatitis (I87.2).","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":""}