{"code":"H91.20","type":"code","title":"Sudden idiopathic hearing loss, unspecified ear","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["abnormal auditory perception (H93.2-)","hearing loss as classified in H90.-","impacted cerumen (H61.2-)","noise-induced hearing loss (H83.3-)","psychogenic deafness (F44.6)","transient ischemic deafness (H93.01-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["H91","H91.0","H91.01","H91.02","H91.03","H91.09","H91.1","H91.10","H91.11","H91.12","H91.13","H91.2","H91.21","H91.22","H91.23","H91.3","H91.8","H91.8X","H91.8X1","H91.8X2","H91.8X3","H91.8X9","H91.9","H91.90","H91.91","H91.92","H91.93"],"inclusionTerms":[],"sibling_titles":{"code":"H91.93","title":"Unspecified hearing loss, bilateral","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Sudden idiopathic hearing loss, unspecified ear is a billable ICD-10-CM diagnosis code (H91.20). Excludes1 (not coded here): abnormal auditory perception (H93.2-); hearing loss as classified in H90.-; impacted cerumen (H61.2-); noise-induced hearing loss (H83.3-); psychogenic deafness (F44.6); transient ischemic deafness (H93.01-).","officialDefinition":"Sudden idiopathic hearing loss, unspecified ear is a billable ICD-10-CM diagnosis code (H91.20). Excludes1 (not coded here): abnormal auditory perception (H93.2-); hearing loss as classified in H90.-; impacted cerumen (H61.2-); noise-induced hearing loss (H83.3-); psychogenic deafness (F44.6); transient ischemic deafness (H93.01-).","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":""}