{"code":"H74.90","type":"code","title":"Unspecified disorder of middle ear and mastoid, unspecified ear","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["mastoiditis (H70.-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Unspecified disorder of middle ear and mastoid, unspecified ear is a billable ICD-10-CM diagnosis code (H74.90). Excludes2 (not included here): mastoiditis (H70.-).","officialDefinition":"Unspecified disorder of middle ear and mastoid, unspecified ear is a billable ICD-10-CM diagnosis code (H74.90). Excludes2 (not included here): mastoiditis (H70.-).","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":""}