{"code":"I21.1","type":"code","title":"ST elevation (STEMI) myocardial infarction of inferior wall","codeAlso":["the presence of hypertension (I10-I1A)"],"includes":["cardiac infarction","coronary (artery) embolism","coronary (artery) occlusion","coronary (artery) rupture","coronary (artery) thrombosis","infarction of heart, myocardium, or ventricle","myocardial infarction specified as acute or with a stated duration of 4 weeks (28 days) or less from onset"],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["old myocardial infarction (I25.2)","postmyocardial infarction syndrome (I24.1)","subsequent type 1 myocardial infarction (I22.-)"],"isBillable":false,"sibling_codes":["I21.11","I21.19"],"inclusionTerms":["Type 1 ST elevation myocardial infarction of inferior wall"],"sibling_titles":{"code":"I21.19","title":"ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall","isBillable":true},"useAdditionalCode":["code, if applicable, to identify:","exposure to environmental tobacco smoke (Z77.22)","history of tobacco dependence (Z87.891)","occupational exposure to environmental tobacco smoke (Z57.31)","status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)","tobacco dependence (F17.-)","tobacco use (Z72.0)"],"clinicalDefinition":"ST elevation (STEMI) myocardial infarction of inferior wall is a non-billable ICD-10-CM category code (I21.1). A more specific billable subcode must be selected for claims submission. Includes: cardiac infarction; coronary (artery) embolism; coronary (artery) occlusion; coronary (artery) rupture; coronary (artery) thrombosis; infarction of heart, myocardium, or ventricle; myocardial infarction specified as acute or with a stated duration of 4 weeks (28 days) or less from onset.","officialDefinition":"ST elevation (STEMI) myocardial infarction of inferior wall is a non-billable ICD-10-CM category code (I21.1). A more specific billable subcode must be selected for claims submission. Includes: cardiac infarction; coronary (artery) embolism; coronary (artery) occlusion; coronary (artery) rupture; coronary (artery) thrombosis; infarction of heart, myocardium, or ventricle; myocardial infarction specified as acute or with a stated duration of 4 weeks (28 days) or less from onset. Inclusion terms: Type 1 ST elevation myocardial infarction of inferior wall. Excludes2 (not included here): old myocardial infarction (I25.2); postmyocardial infarction syndrome (I24.1); subsequent type 1 myocardial infarction (I22.-). Use additional code: code, if applicable, to identify:; exposure to environmental tobacco smoke (Z77.22); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82); tobacco dependence (F17.-); tobacco use (Z72.0). Code also: the presence of hypertension (I10-I1A).","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":""}