Fetal anemia and thrombocytopenia, first trimester, oth

This code signifies the presence of anemia and/or thrombocytopenia in one or more fetuses during a multifetal pregnancy, specifically identified in the first trimester. It indicates that the condition affects a fetus other than the first-listed or primary fetus.

Use this code when diagnostic imaging or fetal blood sampling confirms anemia and/or thrombocytopenia in a non-designated fetus during the first trimester of a multiple gestation. Documentation should clearly specify the affected fetus and the gestational age at diagnosis.

• Ensure documentation specifies "other fetus" in a multiple gestation and confirms the first trimester.
• Distinguish from codes for single gestations or conditions affecting the first-listed fetus.
• Sequence this code after the primary obstetric code for the multiple gestation.