Mat care chromsoml abnlt in fetus, Turner Syndrome, oth

This code signifies maternal care provided when a fetus is suspected or confirmed to have Turner Syndrome, a chromosomal abnormality characterized by the absence of all or part of one X chromosome. This diagnosis is made during pregnancy and applies to situations involving a single fetus or when the specific fetus with Turner Syndrome is being identified in a multiple gestation.

Use this code when the pregnant patient is receiving antenatal care due to concerns or a definitive diagnosis of Turner Syndrome in the fetus. Documentation supporting its use typically includes ultrasound findings (e.g., nuchal translucency, hydrops fetalis), amniocentesis or chorionic villus sampling (CVS) results, or genetic counseling notes indicating the presence or high suspicion of Turner Syndrome.

• Always assign an additional code from category Z3A to specify the weeks of gestation.
• Ensure the documentation clearly specifies "Turner Syndrome" and not just a general chromosomal abnormality.
• For multiple gestations, verify if the abnormality is identified in a specific fetus (e.g., "fetus 1") to ensure accurate coding.