{"code":"I50.4","type":"code","title":"Combined systolic (congestive) and diastolic (congestive) heart failure","codeAlso":["end stage heart failure, if applicable (I50.84)"],"includes":[],"modern_v":"official26","codeFirst":["heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)","heart failure due to hypertension (I11.0)","heart failure due to hypertension with chronic kidney disease (I13.-)","heart failure following surgery (I97.13-)","obstetric surgery and procedures (O75.4)","rheumatic heart failure (I09.81)"],"excludes1":[],"excludes2":["cardiac arrest (I46.-)","neonatal cardiac failure (P29.0)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["I50.40","I50.41","I50.42","I50.43"],"inclusionTerms":["Combined systolic and diastolic left ventricular heart failure","Heart failure with reduced ejection fraction and diastolic dysfunction"],"sibling_titles":{"code":"I50.43","title":"Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Combined systolic (congestive) and diastolic (congestive) heart failure is a non-billable ICD-10-CM category code (I50.4). A more specific billable subcode must be selected for claims submission. Inclusion terms: Combined systolic and diastolic left ventricular heart failure; Heart failure with reduced ejection fraction and diastolic dysfunction. Excludes2 (not included here): cardiac arrest (I46.-); neonatal cardiac failure (P29.0).","officialDefinition":"Combined systolic (congestive) and diastolic (congestive) heart failure is a non-billable ICD-10-CM category code (I50.4). A more specific billable subcode must be selected for claims submission. Inclusion terms: Combined systolic and diastolic left ventricular heart failure; Heart failure with reduced ejection fraction and diastolic dysfunction. Excludes2 (not included here): cardiac arrest (I46.-); neonatal cardiac failure (P29.0). Code first: heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8); heart failure due to hypertension (I11.0); heart failure due to hypertension with chronic kidney disease (I13.-); heart failure following surgery (I97.13-); obstetric surgery and procedures (O75.4); rheumatic heart failure (I09.81). Code also: end stage heart failure, if applicable (I50.84).","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":""}