Maternal care for Anti-A sensitization, second tri, fetus 5

This code signifies ongoing specialized maternal care for a pregnant patient in her second trimester who has developed Anti-A antibodies, specifically impacting fetus number five in a multiple gestation. This sensitization indicates a potential risk of hemolytic disease of the fetus and newborn (HDFN) due to ABO incompatibility.

Use this code when documentation confirms a pregnant patient in her second trimester is receiving management for Anti-A sensitization, and it is specifically identified as affecting the fifth fetus. This typically involves monitoring fetal well-being, antibody titers, and potential interventions to prevent or treat fetal anemia.

• Ensure the documentation clearly specifies "second trimester" and identifies the affected fetus as "fetus 5."
• Do not confuse with codes for Rh sensitization (O36.0-) or other ABO incompatibilities (O36.1- with different last digits).
• Always sequence this code as a primary diagnosis when it is the focus of the encounter, followed by any associated conditions or complications.