Relative rank and prevalence (%) (95% CI) of documented cardiovascular diagnoses or procedure groups in hospitalizations with cardiovascular conditions in the postpartum year (n = 1,216 postpartum hospitalizations among n = 1,127 women) in early (1–42 days; n = 722) and late (43–365 days; n = 494) postpartum. Data are from the MarketScan Commercial Claims and Encounters database. Arrhythmia includes paroxysmal tachycardia, atrial fibrillation, atrial flutter, and other cardiac arrythmias. Other heart diseases and complications include acquired cardiac septal defect, rupture of chordae tendineae (not elsewhere classified), rupture of papillary muscle (not elsewhere classified), intracardiac thrombosis (not elsewhere classified), myocardial degeneration, cardiomegaly, other ill-defined heart diseases, unspecified heart disease, other heart disorders not classified elsewhere, and nonischemic myocardial injury (nontraumatic).