O29.4 - Spinal and epidural anesthesia induced headache during pregnancy O29 - Complications of anesthesia during pregnancy O29.4 - Spinal and epidural anesthesia induced headache during pregnancy
O29.40 - Spinal and epidural anesthesia induced headache during pregnancy, unspecified trimester O29.41 - Spinal and epidural anesthesia induced headache during pregnancy, first trimester O29.42 - Spinal and epidural anesthesia induced headache during pregnancy, second trimester O29.43 - Spinal and epidural anesthesia induced headache during pregnancy, third trimester