O29.0 - Pulmonary complications of anesthesia during pregnancy
O29.02 - Pressure collapse of lung due to anesthesia during pregnancy
O29.021 - Pressure collapse of lung due to anesthesia during pregnancy, first trimester
O29.022 - Pressure collapse of lung due to anesthesia during pregnancy, second trimester
O29.023 - Pressure collapse of lung due to anesthesia during pregnancy, third trimester
O29.029 - Pressure collapse of lung due to anesthesia during pregnancy, unspecified trimester