Mat care chromsoml abnlt in fetus, sex chromo abnlt, fetus 4

This code signifies maternal care provided due to a suspected or confirmed sex chromosome abnormality in the fourth fetus of a multiple gestation pregnancy. This includes conditions like Turner syndrome (XO), Klinefelter syndrome (XXY), or other aneuploidies affecting the sex chromosomes. The maternal care is specifically focused on monitoring and managing the pregnancy in light of this fetal genetic concern.

Use this code when the medical record documents maternal care for a pregnancy where one of the fetuses, specifically the fourth fetus in a multiple gestation, has a suspected or confirmed sex chromosome abnormality. This typically arises from prenatal diagnostic testing such as amniocentesis, chorionic villus sampling (CVS), or non-invasive prenatal testing (NIPT) results indicating a sex chromosome aneuploidy.

• Ensure documentation clearly specifies "fetus 4" in a multiple gestation. If the fetus number is not specified, or if it's a singleton pregnancy, a different code would be appropriate.
• This code is for maternal care due to the fetal condition; it does not code the fetal condition itself.
• Always sequence this code as a secondary diagnosis following the code for the specific type of multiple gestation (e.g., O30.134 for quadruplet pregnancy, fetus 4).