Maternal care for anti-D antibodies, unsp trimester, fetus 5

This code signifies a pregnant patient receiving medical attention due to the presence of anti-D (Rh) antibodies, indicating Rh incompatibility. This maternal sensitization can lead to hemolytic disease of the fetus and newborn (HDFN) if the fetus is Rh-positive. The specific trimester of care is not documented, and the code specifies the fifth fetus in a multiple gestation pregnancy.

Use this code when documentation confirms maternal care for anti-D antibodies, but the trimester of care is not specified. This applies to situations where the patient is pregnant with quintuplets, and the fifth fetus is the focus of the Rh incompatibility management. Documentation should clearly state the presence of anti-D antibodies and the specific fetal number being monitored or treated.

• Ensure documentation specifies "fetus 5" in a multiple gestation to accurately assign this code.
• If the trimester is known, a more specific O36.01- code should be used (e.g., O36.0115 for first trimester).
• Always sequence this code as a secondary diagnosis following the code for the specific type of multiple gestation (e.g., O30.2- for quintuplet pregnancy).