Maternal care for anti-D antibodies, unsp trimester, fetus 2

This code signifies ongoing medical supervision and management provided to a pregnant patient due to the presence of anti-D (Rh) antibodies in her system, specifically impacting the second fetus in a multiple gestation pregnancy. These antibodies pose a risk of hemolytic disease of the fetus and newborn (HDFN) if the fetus is Rh-positive. The trimester of care is not specified.

Use this code when documentation indicates maternal Rh sensitization requiring monitoring or intervention for the second fetus, and the specific trimester of care is not documented. This typically involves serial antibody titers, fetal ultrasound surveillance for signs of anemia, or consideration of intrauterine transfusions. Documentation should clearly state the presence of anti-D antibodies and the focus on the second fetus.

• Ensure documentation specifies "fetus 2" or clearly indicates the second fetus in a multiple gestation.
• If the trimester is known, select a more specific code from the O36.01- series (e.g., O36.0112 for first trimester).
• Code also any associated conditions or interventions, such as fetal anemia (P55.0) if diagnosed, or procedures like intrauterine transfusion (75.2).