Matern care for abnlt fetl hrt rate or rhym, 3rd tri, fts3

This diagnosis code indicates that a pregnant patient in her third trimester is receiving medical attention due to an identified abnormality in the heart rate or rhythm of the third fetus in a multiple gestation pregnancy. This could include conditions like fetal bradycardia, tachycardia, arrhythmias, or other irregular heart patterns requiring monitoring or intervention. The focus is on the maternal care provided specifically for this fetal cardiac issue.

Use this code when documentation clearly states maternal care is being provided for an abnormal fetal heart rate or rhythm in the third trimester, and the specific fetus affected is identified as the third fetus. This typically applies to situations where non-stress tests, biophysical profiles, fetal echocardiograms, or other monitoring reveal a cardiac anomaly in the third fetus, prompting maternal management.

• Ensure the documentation specifies "third trimester" and clearly identifies the "third fetus" in a multiple gestation.
• Do not use this code if the abnormality is in a different fetus or if the pregnancy is not in the third trimester.
• Sequence this code as a primary diagnosis when the maternal care is primarily for the fetal heart rate abnormality; otherwise, it may be a secondary diagnosis.