Maternal care for excess fetal growth, first trimester, oth

This code signifies antenatal care provided to a pregnant patient during her first trimester due to concerns about a fetus exhibiting excessive growth, also known as macrosomia or large for gestational age. This typically involves monitoring and management strategies aimed at preventing complications associated with an overly large fetus. The "other fetus" designation indicates this applies to a multifetal pregnancy where one or more, but not all, fetuses are experiencing excessive growth.

Use this code when documentation explicitly states maternal care for excessive fetal growth identified in the first trimester for a multifetal pregnancy, where the excessive growth is not specified as affecting the primary fetus. This is supported by ultrasound findings indicating fetal measurements significantly above the expected range for gestational age, along with a documented plan for ongoing monitoring or intervention.

• Ensure documentation specifies "first trimester" and "other fetus" in a multifetal pregnancy.
• Do not use this code if the excessive growth is noted in a later trimester; refer to O36.62- or O36.63-.
• Code any associated maternal conditions contributing to excessive fetal growth (e.g., gestational diabetes) separately.