Maternal care for hydrops fetalis, unsp trimester, fetus 1

This code signifies a pregnant patient receiving medical attention due to the presence of hydrops fetalis in the first fetus, where the gestational age at diagnosis is not specified. 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, or skin edema.

Apply this code when documentation indicates maternal care for a fetus diagnosed with hydrops fetalis, and the specific trimester of diagnosis is not recorded. This code is appropriate for initial evaluations, ongoing monitoring, or management of the pregnant patient when the fetal condition is hydrops and it's the first identified fetus. Supporting documentation should clearly state "hydrops fetalis" and the maternal care provided.

• Ensure documentation specifies "fetus 1" if multiple gestations are present; otherwise, use the appropriate code for unspecified fetus.
• Do not use this code if the specific trimester of diagnosis is known; instead, select the trimester-specific O36.2 codes.
• Code any underlying maternal conditions or fetal anomalies contributing to the hydrops fetalis as secondary diagnoses.