Table 1 ICD-9 & CPT Codes Used in MAX.
Variables | Type | Codes | Description | Validation |
|---|---|---|---|---|
Neonatal Intensive Care Unit Admission (NICU Admission) | CPT | 99,295 | Initial inpatient neonatal critical care (Deleted 01 Jan 2009) | PPV = 92% (Medicaid Data [15]) |
CPT | 99,296 | Subsequent inpatient neonatal critical care (Deleted 01 Jan 2009) | ||
CPT | 99,297 | Subsequent inpatient neonatal critical care (Deleted 01 Jan 2009) | ||
CPT | 99,298 | Subsequent intensive care (Deleted 01 Jan 2009) | ||
CPT | 99,299 | Subsequent intensive care (Deleted 01 Jan 2009) | ||
CPT | 99,300 | Subsequent intensive care (Deleted 01 Jan 2009) | ||
CPT | 99,468 | Initial inpatient neonatal critical care, per day, for the evaluation and management of a critically ill neonate, 28 days of age or younger | ||
CPT | 99,469 | Subsequent inpatient neonatal critical care, per day, for the evaluation and management of a critically ill neonate, 28 days of age or younger | ||
CPT | 99,477 | Initial hospital care, per day, for the evaluation and management of the neonate, 28 days of age or younger, who requires intensive observation, frequent interventions, and other intensive care services | ||
CPT | 99,478 | Subsequent intensive care, per day, for the evaluation and management of the recovering very low birth weight infant (present body weight less than 1500 g) | ||
CPT | 99,479 | Subsequent intensive care, per day, for the evaluation and management of the recovering low birth weight infant (present body weight of 1500–2500 g) | ||
CPT | 99,480 | Subsequent intensive care, per day, for the evaluation and management of the recovering infant (present body weight of 2501–5000 g) | ||
Respiratory Distress Syndrome (RDS) | ICD-9 dx | 769.xx | Respiratory distress syndrome in newborn | PPV = 97% (Discharge Data [25] |
Seizure | ICD-9 dx | 779.0x | Convulsions in newborn | PPV = 86% (Medicaid data [37]) |
Assisted Ventilation (AV) | ICD-9 pc | 96.7 | Other Continuous Invasive Mechanical Ventilation | PPV = 93% (Discharge data [26]) |
ICD-9 pc | 96.70 | Continuous Invasive Mechanical Ventilation of Unspecified Duration | ||
ICD-9 pc | 96.71 | Continuous Invasive Mechanical Ventilation for Less Than 96 Consecutive Hours | ||
ICD-9 pc | 96.72 | Continuous Invasive Mechanical Ventilation for 96 Consecutive Hours or More | ||
ICD-9 pc | 93.90 | Non-Invasive Mechanical Ventilation | ||
Birth Injury | ICD-9 dx | 767.xx | Birth trauma | NA |