Maternal care for anti-D antibodies, third tri, fetus 5

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. This condition, known as Rh incompatibility, poses a risk of hemolytic disease of the fetus and newborn (HDFN) for the fifth fetus. The care focuses on monitoring the fetus for signs of anemia or other complications related to the maternal antibodies.

Use this code when a pregnant patient in her third trimester is receiving medical management for Rh sensitization, and it is documented that this is her fifth pregnancy affected by anti-D antibodies. Documentation should clearly indicate the presence of anti-D antibodies, the gestational trimester, and the fetal number. This code is appropriate for services such as increased fetal surveillance, antibody titer monitoring, or preparations for potential fetal interventions.

• Ensure documentation specifies "fetus 5" to support the fifth-digit specificity.
• This code requires an additional code from category Z3A to indicate the weeks of gestation.
• Do not confuse with codes for other types of maternal antibodies or for Rh incompatibility in earlier trimesters.