Mat care cnsl malf/damag fts, anencephaly, fetus 3

This code signifies maternal care provided due to a suspected or confirmed central nervous system malformation in the fetus, specifically anencephaly, affecting the third fetus in a multiple gestation pregnancy. Anencephaly is a severe congenital neural tube defect characterized by the absence of a major portion of the brain, skull, and scalp.

This code is used when a pregnant patient is receiving medical management or surveillance for a fetus diagnosed with or suspected of having anencephaly, and this affected fetus is identified as the third fetus in a multifetal pregnancy. Documentation should clearly indicate the diagnosis of anencephaly and specify the fetal order in multiple gestations.

• Ensure the documentation explicitly identifies the affected fetus as the "third fetus" in a multiple gestation.
• Do not use this code for other types of CNS malformations; specific codes exist for those conditions.
• Sequence this code as a primary diagnosis when the anencephaly is the primary reason for the encounter, or as a secondary diagnosis if another condition is the main reason for the visit.