{"code":"H90.A1","type":"code","title":"Conductive hearing loss, unilateral, with restricted hearing on the contralateral side","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["deaf nonspeaking NEC (H91.3)","deafness NOS (H91.9-)","hearing loss NOS (H91.9-)","noise-induced hearing loss (H83.3-)","ototoxic hearing loss (H91.0-)","sudden (idiopathic) hearing loss (H91.2-)"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["H90.A11","H90.A12"],"inclusionTerms":[],"sibling_titles":{"code":"H90.A12","title":"Conductive hearing loss, unilateral, left ear with restricted hearing on the contralateral side","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Conductive hearing loss, unilateral, with restricted hearing on the contralateral side is a non-billable ICD-10-CM category code (H90.A1). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): deaf nonspeaking NEC (H91.3); deafness NOS (H91.9-); hearing loss NOS (H91.9-); noise-induced hearing loss (H83.3-); ototoxic hearing loss (H91.0-); sudden (idiopathic) hearing loss (H91.2-).","officialDefinition":"Conductive hearing loss, unilateral, with restricted hearing on the contralateral side is a non-billable ICD-10-CM category code (H90.A1). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): deaf nonspeaking NEC (H91.3); deafness NOS (H91.9-); hearing loss NOS (H91.9-); noise-induced hearing loss (H83.3-); ototoxic hearing loss (H91.0-); sudden (idiopathic) hearing loss (H91.2-).","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":""}