| P91 | Other disturbances of cerebral status of newborn | NON-BILLABLE CODE |
| P91.0 | Neonatal cerebral ischemia | BILLABLE CODE |
| P91.1 | Acquired periventricular cysts of newborn | BILLABLE CODE |
| P91.2 | Neonatal cerebral leukomalacia | BILLABLE CODE |
| P91.3 | Neonatal cerebral irritability | BILLABLE CODE |
| P91.4 | Neonatal cerebral depression | BILLABLE CODE |
| P91.5 | Neonatal coma | BILLABLE CODE |
| P91.6 | Hypoxic ischemic encephalopathy [HIE] | NON-BILLABLE CODE |
| P91.61 | Mild hypoxic ischemic encephalopathy [HIE] | BILLABLE CODE |
| P91.62 | Moderate hypoxic ischemic encephalopathy [HIE] | BILLABLE CODE |
| P91.63 | Severe hypoxic ischemic encephalopathy [HIE] | BILLABLE CODE |
| P91.8 | Other specified disturbances of cerebral status of newborn | NON-BILLABLE CODE |
| P91.81 | Neonatal encephalopathy | NON-BILLABLE CODE |
| P91.811 | Neonatal encephalopathy in diseases classified elsewhere | BILLABLE CODE |
| P91.819 | Neonatal encephalopathy, unspecified | BILLABLE CODE |
| P91.82 | Neonatal cerebral infarction | NON-BILLABLE CODE |
| P91.821 | Neonatal cerebral infarction, right side of brain | BILLABLE CODE |
| P91.822 | Neonatal cerebral infarction, left side of brain | BILLABLE CODE |
| P91.823 | Neonatal cerebral infarction, bilateral | BILLABLE CODE |
| P91.829 | Neonatal cerebral infarction, unspecified side | BILLABLE CODE |
| P91.88 | Other specified disturbances of cerebral status of newborn | BILLABLE CODE |
| P91.9 | Disturbance of cerebral status of newborn, unspecified | BILLABLE CODE |
