Newborn small for gestational age, 500-749 grams

This code signifies a liveborn infant who is small for gestational age (SGA) and has a birth weight between 500 and 749 grams. This indicates significant intrauterine growth restriction (IUGR) or prematurity resulting in a very low birth weight relative to their gestational age.

Apply this code for newborns diagnosed with SGA whose birth weight falls within the specified 500-749 gram range. Documentation must clearly state the birth weight and the diagnosis of SGA, often determined by plotting the infant's weight below the 10th percentile for gestational age.

• Always confirm the exact birth weight in grams from the medical record.
• Distinguish from codes for appropriate for gestational age (AGA) or large for gestational age (LGA) infants.
• Sequence this code after the primary diagnosis for the liveborn infant (e.g., Z38.00 for single liveborn, hospital birth).