{"code":"I31.9","type":"code","title":"Disease of pericardium, unspecified","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["diseases of pericardium specified as rheumatic (I09.2)","postcardiotomy syndrome (I97.0)","traumatic injury to pericardium (S26.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["I31","I31.0","I31.1","I31.2","I31.3","I31.31","I31.39","I31.4","I31.8"],"inclusionTerms":["Pericarditis (chronic) NOS"],"sibling_titles":{"code":"I31.8","title":"Other specified diseases of pericardium","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Disease of pericardium, unspecified is a billable ICD-10-CM diagnosis code (I31.9). Inclusion terms: Pericarditis (chronic) NOS. Excludes1 (not coded here): diseases of pericardium specified as rheumatic (I09.2); postcardiotomy syndrome (I97.0); traumatic injury to pericardium (S26.-).","officialDefinition":"Disease of pericardium, unspecified is a billable ICD-10-CM diagnosis code (I31.9). Inclusion terms: Pericarditis (chronic) NOS. Excludes1 (not coded here): diseases of pericardium specified as rheumatic (I09.2); postcardiotomy syndrome (I97.0); traumatic injury to pericardium (S26.-).","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":""}