Cardiac arrest due to anesth during preg, third trimester

This code signifies a cardiac arrest experienced by a pregnant patient during her third trimester, directly attributable to the administration of anesthesia. It indicates a severe, life-threatening adverse event where the heart ceases to pump blood effectively, with the causal link established to anesthetic agents or techniques.

This code is appropriate when documentation clearly states a cardiac arrest occurred in a pregnant patient in her third trimester, and the anesthesiologist or other provider explicitly links the event to anesthesia administration. Supporting documentation would include anesthesia records, physician notes detailing the adverse event, and a confirmed gestational age placing the patient in the third trimester.

• Always ensure the documentation explicitly states the cardiac arrest was due to anesthesia, not merely during anesthesia.
• Verify the gestational age to confirm the third trimester (28 weeks 0 days to delivery).
• Sequence this code as a secondary diagnosis following the primary obstetric complication or reason for admission, unless the cardiac arrest itself is the primary reason for the encounter.