Maternal care for excess fetal growth, unsp tri, fetus 4

This code signifies maternal surveillance and management due to a fetus exhibiting excessive growth, often referred to as macrosomia or large for gestational age (LGA), when the specific trimester of diagnosis is not documented. It indicates that the fourth fetus in a multiple gestation pregnancy is the one experiencing the excessive growth.

Apply this code when documentation confirms maternal care for a multifetal pregnancy where the fourth fetus is identified as macrosomic or LGA, and the trimester of diagnosis is not specified. This typically involves monitoring fetal size, growth velocity, and potential complications associated with large fetuses.

• Ensure documentation clearly identifies the fourth fetus as the one with excessive growth in a multiple gestation.
• Avoid using this code if the trimester of diagnosis is known; instead, use the trimester-specific codes (O36.61X4, O36.62X4, O36.63X4).
• Always sequence this code as a secondary diagnosis, following the code for the primary reason for the encounter (e.g., routine prenatal care).