O29.6 - Failed or difficult intubation for anesthesia during pregnancy O29 - Complications of anesthesia during pregnancy O29.6 - Failed or difficult intubation for anesthesia during pregnancy
O29.60 - Failed or difficult intubation for anesthesia during pregnancy, unspecified trimester O29.61 - Failed or difficult intubation for anesthesia during pregnancy, first trimester O29.62 - Failed or difficult intubation for anesthesia during pregnancy, second trimester O29.63 - Failed or difficult intubation for anesthesia during pregnancy, third trimester