ICD-10 provides category O99 to describe other maternal disease’s classifiable elsewhere but complicating pregnancy, childbirth, and the puerperium. For the digestive system, the code category is O99.6_.
A patient is admitted 5 weeks postpartum with acute cholecystitis and cholelithiasis code O99.63 Diseases of the digestive system complicating the puerperium is assigned. What additional code is needed to fully describe the patient’s condition?