Mat care chromsoml abnlt in fts, other chromsoml abnlt, fts2

This code signifies maternal care provided due to a suspected or confirmed chromosomal abnormality in the fetus, specifically when the abnormality is not otherwise specified as trisomy 13, 18, or 21, and it pertains to a second fetus in a multiple gestation pregnancy. It indicates that the maternal care is focused on managing the pregnancy in light of this fetal genetic concern.

Apply this code when documentation indicates maternal care for a fetus (specifically the second fetus in a multiple gestation) with a suspected or diagnosed chromosomal anomaly that doesn't fall under the specific trisomy categories. This includes situations where genetic testing (e.g., amniocentesis, CVS, NIPT) suggests an unspecified chromosomal defect or a rare chromosomal disorder. Documentation should clearly state the suspected or confirmed chromosomal abnormality and specify it relates to fetus 2.

• Ensure documentation specifies "fetus 2" in multiple gestations; otherwise, use the appropriate single fetus code.
• Distinguish this from O35.1XX0 (unspecified fetus) or O35.1XX1 (fetus 1) for accurate reporting.
• Do not use this code for suspected or confirmed trisomy 13, 18, or 21; dedicated codes exist for those specific conditions.