Mat care cnsl malf/damag fts, holoprosenceph, fetus 2

This code signifies ongoing maternal care for a pregnancy where the second fetus (in a multiple gestation) is suspected or confirmed to have holoprosencephaly, a severe congenital brain malformation. This condition involves a failure of the prosencephalon (the embryonic forebrain) to properly divide into two cerebral hemispheres.

Apply this code when a pregnant patient carrying twins or more is receiving antenatal care due to the diagnosis or suspicion of holoprosencephaly in the second fetus. Documentation should clearly indicate the specific fetus affected (fetus 2) and the nature of the fetal anomaly.

• Ensure the medical record specifies "fetus 2" for accurate assignment; codes exist for other fetuses.
• This code is for maternal care; additional codes for the fetal condition itself (e.g., Q04.2) are not typically reported by the mother's provider.
• Sequence this code as a secondary diagnosis following the primary reason for the encounter, such as routine prenatal care (Z34.xx).