Matern care for abnlt fetl hrt rate or rhym, 3rd tri, unsp

This code signifies ongoing maternal care during the third trimester due to an identified abnormality in the fetal heart rate or rhythm. This includes conditions such as fetal bradycardia, tachycardia, or arrhythmias that are being monitored and managed. The "not applicable or unspecified" fifth character indicates that the specific type of fetal heart rate abnormality is not documented or is not relevant for this particular encounter.

Use this code when a pregnant patient in her third trimester is receiving medical attention for an abnormal fetal heart rate or rhythm. Documentation should clearly indicate the trimester and the presence of a fetal heart rate abnormality, even if the specific type is not detailed. This code is appropriate for antenatal visits focused on monitoring and managing such conditions.

• Ensure documentation specifies "third trimester" for accurate code selection.
• If the specific type of fetal heart rate abnormality (e.g., bradycardia, tachycardia) is documented, a more specific code within the O36.83- category should be used.
• This code is for maternal care; do not confuse it with codes for fetal conditions themselves.