Maternal care for excess fetal growth, unsp tri, fetus 2

This code signifies medical attention provided to a pregnant patient due to concerns about a fetus exhibiting excessive growth, such as macrosomia or large for gestational age, when the specific trimester of gestation is not documented. It indicates that the second fetus in a multiple gestation pregnancy is the one experiencing the growth anomaly.

Apply this code when documentation indicates maternal care for a multifetal pregnancy where the second fetus is identified with excessive growth, and the trimester is not specified. This is often supported by ultrasound findings (e.g., estimated fetal weight above the 90th percentile) or clinical assessment suggesting a large fetus.

• Ensure documentation clearly identifies "fetus 2" as the one with excessive growth in a multiple gestation.
• Avoid using this code if a specific trimester (first, second, or third) is documented; instead, use the appropriate trimester-specific code (O36.61X2, O36.62X2, O36.63X2).
• Always sequence this code as a secondary diagnosis, following the primary code for the pregnancy (e.g., O30.0XX9 for twin pregnancy).