Maternal care for anti-D antibodies, third tri, fetus 4

This code signifies specialized maternal care provided during the third trimester of pregnancy due to the presence of anti-D (Rh) antibodies in the mother, specifically when affecting the fourth fetus. This condition can lead to hemolytic disease of the fetus and newborn (HDFN) if not appropriately managed. The maternal care focuses on monitoring and interventions to mitigate the risks associated with Rh incompatibility.

Assign this code when a pregnant patient in her third trimester is receiving care for anti-D antibodies, and the current pregnancy involves her fourth fetus. Documentation should clearly indicate the presence of anti-D antibodies, the gestational trimester, and the parity of the current pregnancy. This code is used for the maternal record, not the fetal record.

• Ensure documentation specifies "anti-D" or "Rh antibodies" and not other types of antibodies.
• Verify the current pregnancy is indeed the fourth fetus for which the mother is receiving care related to Rh incompatibility.
• Sequence this code as a primary diagnosis when the anti-D antibody care is the main reason for the encounter, or as a secondary diagnosis when it's a significant co-morbidity.