Maternal care for Anti-A sensitization, second tri, oth

This code indicates that a pregnant patient in her second trimester is receiving specialized medical care due to the presence of Anti-A antibodies, which can lead to hemolytic disease of the fetus/newborn. This specific code applies when the sensitization affects a fetus other than the first-born, or when the specific fetus affected is not otherwise specified.

Use this code when documentation confirms maternal Anti-A sensitization requiring monitoring or intervention during the second trimester of pregnancy, and the sensitization is noted for an "other" or unspecified fetus in a multiple gestation. Supporting documentation includes laboratory results confirming Anti-A antibodies, ultrasound findings of fetal anemia or hydrops, and physician notes detailing the management plan for the affected fetus.

• Ensure the documentation clearly specifies "second trimester" and "Anti-A sensitization."
• Verify that the sensitization is noted for an "other fetus" or is not specified as the first fetus in a multiple gestation.
• Do not confuse with codes for Anti-B, Anti-D (Rh), or other specified antibody sensitizations.