Mat care chromsoml abnlt in fts, other chromsoml abnlt, fts4

This code signifies maternal care provided when a fetus is suspected or confirmed to have a chromosomal abnormality, specifically an "other" type of chromosomal abnormality, and it is the fourth fetus in a multiple gestation pregnancy. This diagnosis is typically made or suspected during prenatal screening or diagnostic testing.

Apply this code when a pregnant patient is receiving care due to concerns or a definitive diagnosis of a non-specific chromosomal anomaly in one of the fetuses, and the medical record clearly indicates this is the fourth fetus. Documentation should include details of the suspected or confirmed chromosomal abnormality and the fetal number.

• Ensure the documentation specifies "fetus 4" for multiple gestations; otherwise, a different fetal number code or a single gestation code may be appropriate.
• This code requires an additional code from category Z3A to specify the weeks of gestation.
• Distinguish "other chromosomal abnormality" from specific conditions like Down syndrome (O35.11-) or Edwards syndrome (O35.12-).