1. A Method to Account for Variation in Congenital Heart Surgery Charges
Lisa Bergersen, MD, MPH, Andrew Brennan, BS, Kimberlee Gauvreau, ScD, Jean Connor, PhD, RN, Melvin Almodovar, MD, James DiNardo, MD, Sthuthi David, BS, John Triedman, MD, Puja Banka, MD, Sitaram Emani, MD, John E. Mayer, MD 
The Annals of Thoracic Surgery 
Volume 99, Issue 3, Pages (March 2015)
DOI: /j.athoracsur
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
One hundred three procedure types surgically grouped into associated surgical charge categories. aStratified by age. bStratified by diagnosis. cStratified by genetic syndrome. dStratified by secondary procedure. (AA = aortic atresia; ALCAPA = anomalous left coronary artery from the pulmonary artery; AP = aortopulmonary; AS aortic stenosis; ASD = atrial septal defect; ASO = arterial switch operation; AVC = atrioventricular canal; AVV = atrioventricular valve; BDG = bidirectional Glenn; BTS = Blalock-Taussig shunt; CPB = cardiopulmonary bypass; DCRV = double-chambered right ventricle; DORV = double-outlet right ventricle; D-TGA = dextro transposition of the great arteries; HLHS = hypoplastic left heart syndrome; IAA = interrupted aortic arch; IHSS = idiopathic hypertrophic subaortic stenosis; IVS = intact ventricular septum; L-GTA = levo transposition of the great arteries; LVOT = left ventricular outflow tract; MAPCA = major aortopulmonary collateral artery; MS = mitral stenosis; PA = pulmonary atresia; PAB = pulmonary artery band; PDA = patent ductus arteriosus; PFO = patent foramen ovale; PS = pulmonary stenosis; RV = right ventricle; RVOT = right ventricular outflow tract; RV-PA = right ventricle to pulmonary artery; TAPVC = total anomalous pulmonary venous connection; TOF = tetralogy of Fallot; VAD = ventricular assist device; VSD = ventricular septal defect.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
The distribution of cases types by surgical charge categories is represented by the columns, and the calculated median and interquartile range charge for each surgical charge category is represented by the scatter plot.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

4. Fig 3
The distribution of surgical cases linked to an associated all patient refined diagnosis related groups (APR-DRG) value were matched to their associated severity of illness (SOI) subclass and summarized by surgical charge categories. Mean severity of illness was calculated by surgical charge category. Subclass 1 is designated by light blue; subclass 2 by yellow; subclass 3 by green; and subclass 4 by purple.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

5. Fig 4
The distribution of surgical cases linked to an associated all patient refined diagnosis related groups (APR-DRG) value were matched to their associated case mix index (CMI; solid circles) subclass and summarized by surgical charge categories. Geometric mean charge (shaded squares) was calculated by surgical charge category.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions