Cardiac arrest due to anesth during preg, second trimester

This code signifies a sudden cessation of cardiac activity in a pregnant patient during her second trimester, directly attributed to the administration of anesthesia. It represents a severe and life-threatening adverse event related to anesthetic agents or techniques used during this specific gestational period.

Use this code when documentation clearly links a cardiac arrest event to anesthesia administered during the second trimester of pregnancy. This typically occurs during surgical procedures or other interventions requiring anesthesia. Documentation should specify the trimester and explicitly state the causal relationship between the anesthesia and the cardiac arrest.

• Always sequence this code after the primary obstetric code (e.g., O09.- for supervision of normal pregnancy).
• Ensure documentation specifies "cardiac arrest" and "anesthesia" as the cause, along with the "second trimester."
• Do not use for cardiac arrest from other causes during pregnancy, or for anesthesia complications not resulting in cardiac arrest.