Oth cnsl comp of anesth during pregnancy, third trimester

This code signifies a central nervous system complication, not otherwise specified, that arises as a direct result of anesthesia administered during the third trimester of pregnancy. This includes adverse effects such as prolonged somnolence, cognitive dysfunction, or other neurological sequelae directly attributable to anesthetic agents or techniques.

Apply this code when a pregnant patient in her third trimester experiences a central nervous system complication clearly documented as an adverse effect of anesthesia, and a more specific O29.2x code is not applicable. Documentation should explicitly link the neurological issue to the anesthetic event and confirm the gestational period.

• Ensure the documentation specifies the third trimester; otherwise, a different trimester-specific code or an unspecified trimester code may be more appropriate.
• Always sequence this code after the primary obstetric code (e.g., O80-O82 for delivery, or other codes for the reason for anesthesia).
• Distinguish from O29.21x (anoxic brain damage) or O29.22x (cerebrovascular complications) if the specific CNS complication is known.