Maternal care for Anti-A sensitization, first tri, fetus 4

This code signifies specialized maternal care provided due to the mother's immune system producing antibodies against the A antigen present on fetal red blood cells, specifically when the pregnancy is in the first trimester. This alloimmunization can lead to hemolytic disease of the fetus and newborn (HDFN) if not monitored and managed. The "fetus 4" designation indicates that this is the fourth fetus being monitored in a multiple gestation pregnancy.

Apply this code when a pregnant patient, in her first trimester, has been identified with Anti-A sensitization, and is carrying quadruplets, with this code specifically referring to the fourth fetus. Documentation should clearly state the presence of Anti-A antibodies, the gestational age (first trimester), and confirm the multiple gestation with the specific fetal number.

• Ensure documentation specifies "first trimester" and the exact fetal number (fetus 4) in cases of multiple gestation.
• Do not confuse with other types of alloimmunization (e.g., Anti-B, Anti-D) or sensitization occurring in different trimesters.
• This code is for the maternal condition and care; additional codes may be needed for any fetal complications or interventions.