{"code":"Q87.87","type":"code","title":"Hao-Fountain Syndrome","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["Zellweger syndrome (E71.510)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":["HAFOUS"],"useAdditionalCode":["code, if applicable, for associated conditions such as:","autism spectrum disorder (F84.0)","developmental speech disorder (F80.-)","epilepsy, by specific type (G40.-)","intellectual disabilities (F70-F79)","pervasive developmental disorders (F84.-)","code(s) to identify all associated manifestations"],"clinicalDefinition":"Hao-Fountain Syndrome is a billable ICD-10-CM diagnosis code (Q87.87). Inclusion terms: HAFOUS. Excludes1 (not coded here): Zellweger syndrome (E71.510). Use additional code: code, if applicable, for associated conditions such as:; autism spectrum disorder (F84.0); developmental speech disorder (F80.-); epilepsy, by specific type (G40.-); intellectual disabilities (F70-F79); pervasive developmental disorders (F84.-); code(s) to identify all associated manifestations.","officialDefinition":"Hao-Fountain Syndrome is a billable ICD-10-CM diagnosis code (Q87.87). Inclusion terms: HAFOUS. Excludes1 (not coded here): Zellweger syndrome (E71.510). Use additional code: code, if applicable, for associated conditions such as:; autism spectrum disorder (F84.0); developmental speech disorder (F80.-); epilepsy, by specific type (G40.-); intellectual disabilities (F70-F79); pervasive developmental disorders (F84.-); code(s) to identify all associated manifestations.","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":""}