Extreme immaturity of newborn, unsp weeks of gestation

This code signifies a newborn delivered at an extremely premature gestational age, without specific documentation of the exact number of weeks. It indicates a neonate born significantly before the typical 37 weeks of gestation, presenting with the physiological characteristics associated with extreme prematurity.

Apply this code when documentation clearly states "extreme immaturity" or "extremely premature" but lacks a precise gestational age in weeks. This is typically used for infants born at or before 28 weeks gestation, where the exact week is not specified in the medical record.

• Always seek clarification for a specific gestational age in weeks if "extreme immaturity" is documented without it.
• Do not use this code if a specific gestational age (e.g., 25 weeks) is documented; instead, use the appropriate P07.2- subcategory.
• This code is a primary diagnosis for the newborn and should be sequenced first, followed by any associated conditions.