778.4
ICD-9-CMThis code signifies a newborn's inability to maintain a stable core body temperature, falling outside the typical ranges of hypothermia or hyperthermia. It encompasses various non-specific temperature dysregulations that are not otherwise classified as specific conditions. This can manifest as persistent temperature instability without a clear underlying cause.
Use this code when documentation indicates a newborn experiencing temperature fluctuations or instability that does not meet criteria for specific hypothermia (e.g., cold stress) or hyperthermia (e.g., fever due to infection). This code is appropriate when the physician notes "temperature instability," "poor thermoregulation," or "other disturbance of temperature regulation" in a newborn.
AI-generated reference — verify against official guidelines