Table 1:

Study Population

Inclusion Criteria			Exclusion Criteria
Cohort Names	CCS Category	CCS Description	Description
Healthy Liveborn	218	Liveborn	Assignment of any other CCS code
Low Acuity Neonatal Jaundice	222	Hemolytic Jaundice and Perinatal Jaundice	Assignment of any other CCS code or ICD9/10 diagnosis codes indicating pathologic jaundice1
Low Acuity Late Preterm	219	Short gestation; low birthweight; and fetal growth retardation	Assignment of any other CCS code or ICD9/10 diagnosis codes indicating birthweight < 2500g or gestational age < 34 weeks2
Total Low Acuity Infants	218,222,219	Above combination of above descriptions	Assignment of any other CCS code other than 218,219,222 or ICD9/10 codes indicating pathologic jaundice1 or ICD 9/10 codes indicating birthweight < 2500g or gestational age < 34 weeks2

^1.Pathologic jaundice ICD9 and 10 codes include: 7744, 7747, 7733, 7734, P5929, P578, P579, P570, P5690, P560, P5699

^2.Birthweight < 2500g or gestational age < 34 weeks ICD9 and 10 codes include: 76404,76414, P0726,P0506, P0700, 76496, 76405, 76493, 76422, P0731, P059, V2132, 76498,76409,76418, P0733, P0724, P0511, 76502, 76495, 76501, 76505, V2134, P0734, P0512, P0503, 76516, 76517, 76522, 76524, 76525, 76526, 76503, 76513, 76492, 76512, 76523, 76511, 76406, 76402,76403, 76504, 76521, 76401, 76491, 76494,76412, 76416, 76506, V2133, 76415, 76413, 76426, 76424, 76425, 76423, P0735, P0508, P0734, 76525, 76517, 76498, P0717, P0733, 76524, P0517, 76515,76497,V2135, P0717, P0508, 76518, P0718, P0518, 76527, 76411, 76421, P0702, P0715, P0720, P0716, P0735, P0736, P0514, P0516, P0703, P0714, P0725, P0732, P0723, P0701, P0721, P0515, P0722, P0722, P0505, P0501, P0502, P0504, 76527, P0736, P0518, P0718, 76526, 76518