Maternal care for hydrops fetalis, first trimester, fetus 3

This code signifies maternal care provided due to the presence of hydrops fetalis in the third fetus of a multiple gestation pregnancy during the first trimester. Hydrops fetalis is a severe, life-threatening condition characterized by abnormal fluid accumulation in two or more fetal compartments.

Apply this code when documentation clearly indicates maternal management for hydrops fetalis affecting the third fetus, and the diagnosis or management occurred within the first trimester of pregnancy. Supporting documentation should include ultrasound findings confirming hydrops in fetus 3 and the gestational age.

• Ensure the documentation specifies "fetus 3" in a multiple gestation to justify this specific character.
• Verify the gestational age falls within the first trimester (0-13 weeks 6 days) for accurate trimester assignment.
• Always sequence this code as a secondary diagnosis, with a code for the underlying cause of the hydrops fetalis (if known) as the primary diagnosis.