Matern care for abnlt fetl hrt rate or rhym, unsp tri, fts1

This code signifies a pregnant patient receiving medical attention due to an irregular or abnormal heart rate or rhythm detected in the first fetus. This maternal care is provided when the specific trimester of pregnancy is not documented or is unknown. It indicates a maternal condition requiring monitoring or intervention related to fetal cardiac well-being.

Use this code when the medical record documents maternal management for an abnormal fetal heart rate or rhythm, such as fetal bradycardia, tachycardia, or arrhythmias, and the specific trimester is not specified. This applies to situations where the abnormality is noted in the first fetus of a multiple gestation or in a singleton pregnancy. Documentation should clearly state the maternal care provided due to the fetal cardiac issue.

• Ensure documentation specifies "fetus 1" if applicable for multiple gestations; otherwise, it defaults to a singleton pregnancy.
• Do not use if a more specific trimester (e.g., first, second, third) is documented; instead, select the appropriate trimester-specific code.
• This code requires a secondary code to identify the specific type of abnormal fetal heart rate or rhythm (e.g., O42.1XX0 for premature rupture of membranes, unspecified as to onset of labor).