{"code":"Q85.81","type":"code","title":"PTEN hamartoma tumor syndrome","codeAlso":[", if applicable, genetic susceptibility to malignant neoplasm (Z15.0-)"],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["Meckel-Gruber syndrome (Q61.9)","ataxia telangiectasia [Louis-Bar] (G11.3)","familial dysautonomia [Riley-Day] (G90.1)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":["PHTS","PTEN related Cowden syndrome"],"useAdditionalCode":[],"clinicalDefinition":"PTEN hamartoma tumor syndrome is a billable ICD-10-CM diagnosis code (Q85.81). Inclusion terms: PHTS; PTEN related Cowden syndrome. Excludes1 (not coded here): Meckel-Gruber syndrome (Q61.9); ataxia telangiectasia [Louis-Bar] (G11.3); familial dysautonomia [Riley-Day] (G90.1). Code also: , if applicable, genetic susceptibility to malignant neoplasm (Z15.0-).","officialDefinition":"PTEN hamartoma tumor syndrome is a billable ICD-10-CM diagnosis code (Q85.81). Inclusion terms: PHTS; PTEN related Cowden syndrome. Excludes1 (not coded here): Meckel-Gruber syndrome (Q61.9); ataxia telangiectasia [Louis-Bar] (G11.3); familial dysautonomia [Riley-Day] (G90.1). Code also: , if applicable, genetic susceptibility to malignant neoplasm (Z15.0-).","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":""}