Oth cardiac comp of anesth during pregnancy, third trimester

This code identifies any cardiac complication, other than cardiac arrest or cardiac failure, that arises as a direct result of anesthesia administered during the third trimester of pregnancy. This includes conditions such as arrhythmias, myocardial ischemia, or other adverse cardiac events attributable to the anesthetic agent or technique.

Assign this code when documentation clearly links a cardiac complication, excluding arrest or failure, to anesthesia provided during the third trimester of pregnancy. Supporting documentation should specify the type of cardiac complication and explicitly state its iatrogenic relationship to the anesthetic.

• Always sequence this code after the primary obstetric code (e.g., O99.4xx for diseases of the circulatory system complicating pregnancy).
• Ensure the documentation specifies "third trimester" and explicitly attributes the cardiac complication to anesthesia.
• Do not use for cardiac arrest (O29.2x) or cardiac failure (O29.11x) due to anesthesia during pregnancy.