Fetal anemia and thrombocytopenia, first trimester, fetus 1

This code signifies the presence of anemia and/or thrombocytopenia in the first fetus of a multiple gestation, or in a singleton pregnancy, during the first trimester. These conditions indicate abnormally low red blood cell count and/or platelet count, respectively, in the developing fetus.

This code is used when diagnostic imaging or fetal blood sampling confirms anemia and/or thrombocytopenia in the first fetus before the end of the 13th week of gestation. Documentation should clearly specify the trimester and the affected fetus (if multiple gestation) along with the confirmed diagnosis.

• Always confirm the specific trimester and the affected fetus number (e.g., fetus 1, fetus 2) from the medical record.
• Distinguish between fetal anemia/thrombocytopenia and maternal conditions affecting the fetus; this code is for fetal conditions.
• Ensure documentation supports both the anemia and/or thrombocytopenia and the first trimester timeframe.