help w/complicated pre/post c-section

Pt had hypertension/preeclampsia during pregnancy, during delivery she hemorrhaged requiring transfusion had pulmonary edema,toxemia,atelectasis, body systems started shutting down, started to go into CHF, the obg doctor stayed with the patient though the night to carefully monitor her. To care to keep her out of ICU. I'm sure this would NOT be just the normal C-section delivery. Could anyone give me an idea on how to charge this complex delivery. "up and above the regular c-section charge". Possibly "prolonged visit 99356-99357" or "critical care 99291-99292" Thank you so much