Preterm newborn, gestational age 33 completed weeks

This code identifies a liveborn infant delivered prematurely at 33 completed weeks of gestation. It signifies a moderate to late preterm birth, indicating the newborn's physiological immaturity due to shortened intrauterine development.

Apply this code for newborns documented as being born at exactly 33 completed weeks of gestation. Documentation must clearly state the gestational age at birth, typically derived from the mother's last menstrual period (LMP) or early ultrasound.

• Always confirm the exact completed weeks of gestation from the medical record.
• Do not use this code if the gestational age is 32 weeks 6 days or less, or 34 weeks or more.
• Sequence this code as a principal diagnosis for the newborn's birth encounter, followed by any other relevant conditions.