TABLE 2

Definitions of ICD-9 Codes Used as Inclusion and Exclusion Criteria for the Patient Population

ICD-9 CodeDefinitionIncluded or Excluded
774.1Perinatal jaundice from other excessive hemolysisIncluded
774.5Perinatal jaundice from other causesIncluded
774.6Unspecified fetal and neonatal jaundiceIncluded
774.0Perinatal jaundice from hereditary hemolytic anemiasIncluded
774.30Neonatal jaundice due to delayed conjugation, cause unspecifiedIncluded
774.31Neonatal jaundice due to delayed conjugation in diseases classified elsewhereIncluded
774.39Other neonatal jaundice due to delayed conjugation from other causesIncluded
277.4Disorders of bilirubin excretionIncluded
773.0Hemolytic disease of fetus or newborn due to rhesus isoimmunizationIncluded
773.1Hemolytic disease of fetus or newborn due to ABO isoimmunizationIncluded
773.2Hemolytic disease of fetus or newborn due to other and unspecified isoimmunizationIncluded
782.4Jaundice, unspecified, not of newbornExcluded
995.91SepsisExcluded
995.92Severe sepsisExcluded
  • ABO, blood types A, B, and O.