Neonatal cerebral irritability

This code describes a state of heightened neurological excitability in a newborn, often manifesting as excessive crying, tremors, hypertonia, or an exaggerated startle reflex. It indicates a non-specific neurological symptom rather than a definitive diagnosis of a specific brain injury or disorder.

Use this code when documentation explicitly states "neonatal cerebral irritability" or similar terms describing a newborn's neurological hyperexcitability without a more specific underlying cause identified. This often occurs in the context of neonatal abstinence syndrome, perinatal asphyxia, or metabolic disturbances.

• Do not use this code if a more specific neurological condition, such as neonatal seizures (P90.x) or specific brain injury, is diagnosed.
• Always look for and code any underlying cause of the irritability, such as drug withdrawal (P96.1) or hypoxic-ischemic encephalopathy (P91.6-).
• This code is a symptom code; it should be sequenced after the definitive diagnosis if one is established.