{"code":"X35.XXXA","type":"code","title":"Volcanic eruption, initial encounter","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["tidal wave (tsunami) due to volcanic eruption (X37.41)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Volcanic eruption, initial encounter is a billable ICD-10-CM diagnosis code (X35A). Excludes2 (not included here): tidal wave (tsunami) due to volcanic eruption (X37.41). 7th character: The appropriate 7th character is to be added to code X35.","officialDefinition":"Volcanic eruption, initial encounter is a billable ICD-10-CM diagnosis code (X35A). Excludes2 (not included here): tidal wave (tsunami) due to volcanic eruption (X37.41). 7th character: The appropriate 7th character is to be added to code X35.","seventhCharacterInstructions":["The appropriate 7th character is to be added to code X35"],"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":"","noteProvenance":{"tidal wave (tsunami) due to volcanic eruption (X37.41)":"X35"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}