Extremely low birth weight newborn, unspecified weight

This code signifies a newborn infant born with an extremely low birth weight, which is defined as less than 1000 grams (2 pounds, 3 ounces). It indicates a significant prematurity and/or intrauterine growth restriction, leading to substantial health risks and requiring intensive neonatal care.

Apply this code when documentation clearly states "extremely low birth weight" for a newborn, without specifying the exact weight in grams. This is typically used for liveborn infants in the immediate postnatal period.

• Do not use this code if the specific birth weight (e.g., 750 grams) is documented; instead, use the more specific P07.0- subcategories.
• This code is for the newborn's record, not the mother's.
• Always sequence this code as a principal diagnosis when it meets the definition of the principal diagnosis.