Maternal care for hydrops fetalis, second trimester, fetus 3

This code signifies specialized maternal care provided due to the presence of hydrops fetalis in the third fetus of a multiple gestation pregnancy, specifically during the second trimester. Hydrops fetalis is a severe, life-threatening condition characterized by abnormal fluid accumulation in two or more fetal compartments, such as ascites, pleural effusion, pericardial effusion, and skin edema.

Use this code when the medical record clearly documents maternal management, monitoring, or intervention for hydrops fetalis affecting the third fetus during the second trimester of pregnancy. Supporting documentation would include ultrasound reports confirming hydrops in fetus 3, physician notes detailing the management plan, and the gestational age falling within the second trimester (weeks 14-27+6 days).

• Ensure the documentation explicitly identifies the affected fetus as "fetus 3" in a multiple gestation.
• Verify the gestational age falls within the second trimester; codes for other trimesters exist.
• Sequence this code as a secondary diagnosis following the primary obstetric code for the encounter.