Matern care for abnlt fetl hrt rate or rhym, 3rd tri, fts4

This code signifies medical supervision and management provided to a pregnant patient in her third trimester due to an abnormal fetal heart rate or rhythm detected in the fourth fetus of a multiple gestation pregnancy. This includes conditions like fetal bradycardia, tachycardia, arrhythmias, or other non-reassuring heart rate patterns requiring intervention or close monitoring.

Apply this code when documentation indicates maternal care for an identified fetal heart rate or rhythm abnormality specifically affecting the fourth fetus during the third trimester of a multifetal pregnancy. Supporting documentation would include fetal monitoring strips, ultrasound reports detailing fetal heart activity, and physician notes outlining the management plan for the specific fetus.

• Ensure the documentation clearly specifies "fetus 4" and that the pregnancy is in the third trimester.
• Do not use this code for abnormalities of the fetal heart structure; those are coded elsewhere.
• Sequence this code as a primary diagnosis when the maternal care is primarily focused on managing this specific fetal condition.