the risks and benefits of the procedure were explained to the healthcare proxy and written informed consent was obtained. a preprocedure timeout was performed using two patient verifiers to identify the patient. standard aseptic technique was utilized. 1% lidocaine was used for local anesthesia. under direct ultrasound guidance, an 8 french trocar catheter was percutaneously inserted into the gallbladder lumen and there was spontaneous drainage of brown colored bile. the metallic introducer was removed and the pigtail formed within the gallbladder lumen under ultrasound guidance. a total of approximately 120 ml of brown colored bile was drained and sent for laboratory studies. the catheter was secured to the skin with a sterile dressing and a drainage bag applied. dr. , the attending radiologist, was present and supervised throughout the procedure. impression: successful ultrasound-guided percutaneous cholecystostomy. Procedure: Venous catheterization, not elsewhere classified Parenteral infusion of concentrated nutritional substances Percutaneous abdominal drainage Esophagogastroduodenoscopy [EGD] with closed biopsy Trocar cholecystostomy Diagnoses: Esophageal reflux Acute posthemorrhagic anemia Acute kidney failure, unspecified Other pulmonary insufficiency, not elsewhere classified Hypertensive chronic kidney disease, unspecified, with chronic kidney disease stage I through stage IV, or unspecified Chronic kidney disease, unspecified Other and unspecified hyperlipidemia Other specified procedures as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at time of procedure Intestinal infection due to Clostridium difficile Other specified disorders of biliary tract Personal history of venous thrombosis and embolism Hemorrhage of gastrointestinal tract, unspecified Acute cholecystitis Anemia in neoplastic disease Malignant neoplasm of pyloric antrum Perforation of gallbladder Monocytosis (symptomatic)