Cerebral anoxia due to anesth during preg, third trimester

This code signifies brain damage resulting from a lack of oxygen, specifically caused by anesthesia administered during the third trimester of pregnancy. It indicates an adverse outcome for the mother directly attributable to anesthetic complications.

Apply this code when documentation clearly states cerebral anoxia in a pregnant patient in her third trimester, with a direct causal link to anesthesia administration. This typically involves cases of maternal anesthetic complications leading to hypoxic brain injury.

• Always sequence this code after the obstetric code (e.g., O99.5-) to indicate the primary pregnancy complication.
• Ensure documentation specifies "third trimester" and explicitly links the anoxia to anesthesia.
• Distinguish from anoxia due to other causes during pregnancy, which would be coded differently.