Oth cnsl comp of anesth during pregnancy, second trimester

This code signifies any central nervous system (CNS) complication arising from anesthesia administered during the second trimester of pregnancy, excluding those specifically classified elsewhere (e.g., respiratory, cardiac). It covers adverse neurological events such as seizures, prolonged altered mental status, or new-onset neurological deficits directly attributable to the anesthetic agent or procedure.

Use this code when documentation clearly links a CNS complication to anesthesia given during the second trimester of pregnancy. Examples include a patient experiencing a new seizure disorder or a persistent headache with neurological signs following an epidural or general anesthesia during this period. The medical record must explicitly state the causal relationship and the trimester.

• Always sequence this code after the primary obstetric code (e.g., O99.89 for other specified diseases and conditions complicating pregnancy).
• Ensure the documentation specifies "second trimester" to support the use of this particular subcategory.
• Distinguish from O29.21- (respiratory complications) and O29.22- (cardiac complications) which have their own specific codes.