Normal Newborns in Each DRG Classification System | Number of Cases | Percent of All Neonates | Average LOS | Average Cost | Coefficient Variation Cost |
---|---|---|---|---|---|

V 12.0 Medicare DRGs: | |||||

DRG 391, Normal newborn | 316 738 | 65.3% | 1.7 | $509 | .48 |

V 12.0 AP-DRGs: | |||||

AP-DRG 620, Birth weight 2000–2499 g | 9081 | 1.9% | 2.9 | $1192 | 1.23 |

AP-DRG 629, Birth weight >2499 g | 408 209 | 84.1% | 1.8 | $562 | .61 |

Total, Normal newborns | 417 290 | 86.0% | 1.8 | $576 | N/A |

V 12.0 APR-DRGs: | |||||

APR-DRG 657.1 Birth weight 2000–2499 g | 4020 | .8% | 2.1 | $647 | .63 |

APR-DRG 677.1 Birth weight >2500 g | 375 910 | 77.5% | 1.8 | $516 | .48 |

Total, Normal newborns | 379 930 | 78.3% | 1.8 | $517 | N/A |

Costs include hospital operating and capital costs, exclusive of graduate medical education costs, adjusted by HCFA area wage index.

Analytic outliers are removed from the above statistics. High-cost outliers are defined as the highest 1% of patients in each DRG in each DRG system and low-cost outliers are defined as the lowest ½% of patients in each DRG in each DRG system. Thus, approximately 7400 of the database's 492 558 neonates are removed from the above statistics.

Some of the more expensive neonates classified by the AP-DRGs as normal newborns are classified by the APR-DRGs into an intermediate category for other problems through its severity subclasses. The cost for these neonates is intermediate to that of normal newborns and those with significant problems. Not shown above, the statistics for these neonates are: APR-DRG 677.2, birth weight >2500 g, other problem: 32 037 cases, 2.6 ALOS, $1082 cost, .86 CV; and APR-DRG 677.3, birth weight >2500 g, other problem (multiple): 4422 cases, 4.4 ALOS, $2460 cost, .90 CV.

Coefficient of variation is the standard deviation divided by the arithmetic mean.

ALOS is average length of stay.