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

This code signifies specialized prenatal care provided to a pregnant patient in her second trimester due to the presence of anti-D (Rh) antibodies, specifically when the fourth fetus is affected. This condition arises when an Rh-negative mother carries an Rh-positive fetus, leading to the mother's immune system producing antibodies that can cross the placenta and potentially harm the fetal red blood cells.

Use this code when documentation clearly indicates a second-trimester pregnancy complicated by the mother's anti-D (Rh) antibodies, and the medical record specifies this is the fourth fetus. This typically involves monitoring for fetal anemia, hydrops fetalis, and potential interventions like intrauterine transfusions. Documentation should confirm the trimester, the presence of anti-D antibodies, and the fetal number.

• Ensure the documentation explicitly states "second trimester" and identifies the "fourth fetus" to accurately assign this specific code.
• Do not confuse this with codes for other trimesters or for different fetal numbers; specificity is crucial for accurate reporting.
• Always sequence this code as a primary diagnosis when the anti-D antibodies are the primary reason for the encounter and management.