Matern care for abnlt fetl hrt rate or rhym, 1st tri, fts4

This code signifies ongoing medical supervision and management provided to a pregnant patient during her first trimester due to an identified abnormality in the heart rate or rhythm of the fourth fetus in a multiple gestation. This includes monitoring, diagnostic work-up, and potential interventions aimed at assessing and addressing the fetal cardiac issue.

Use this code when documentation clearly indicates maternal care for an abnormal fetal heart rate or rhythm (e.g., bradycardia, tachycardia, arrhythmia) specifically for the fourth fetus, occurring within the first trimester (weeks 0-13+6 days). Supporting documentation includes ultrasound reports, fetal monitoring strips, and physician notes detailing the cardiac abnormality and the trimester of diagnosis.

• Ensure the documentation explicitly states "fetus 4" and confirms the first trimester for accurate assignment.
• Do not use this code for routine fetal heart rate monitoring without an identified abnormality.
• Sequence this code as a secondary diagnosis following the code for the specific fetal heart rate or rhythm abnormality, if known and separately coded.