Maternal care for anti-D antibodies, third tri, fetus 3

This code signifies specialized maternal care provided due to the presence of anti-D (Rh) antibodies in a pregnant patient during her third trimester. This condition poses a risk of hemolytic disease of the fetus and newborn (HDFN) for the third fetus. The care involves monitoring and managing potential complications arising from Rh incompatibility.

Use this code when a pregnant patient, in her third trimester, is receiving medical attention specifically for anti-D antibodies, and this is her third pregnancy affected by this condition. Documentation should clearly indicate the presence of anti-D antibodies, the gestational age placing the patient in the third trimester, and the parity or fetal number indicating it's the third affected fetus.

• Ensure documentation specifies "third trimester" and "fetus 3" to support the specificity of this code.
• Distinguish from codes for anti-D antibodies in other trimesters or for different fetal numbers.
• This code should be sequenced as a primary diagnosis when the anti-D antibodies are the primary reason for the encounter.