Patient presents with symptoms consistent with large bowel obstruction (LBO).  Presenting complaints include abdominal pain, distension, and obstipation.  The patient reports [frequency and character of abdominal pain, e.g., constant, cramping, intermittent].  Onset of symptoms began [timeframe] and is associated with [associated symptoms, e.g., nausea, vomiting, anorexia].  Bowel sounds are [present/absent/hypoactive/hyperactive].  Abdomen is [tender/non-tender] to palpation with [description of palpable masses, if any].  The patient denies [pertinent negatives, e.g., hematochezia, melena, recent weight loss].  Medical history significant for [relevant medical history, e.g., prior abdominal surgery, diverticulitis, colon cancer, hernia].  Current medications include [list medications].  Allergies include [list allergies].  Differential diagnosis includes mechanical large bowel obstruction, pseudo-obstruction (Ogilvie syndrome), and volvulus.  Initial workup includes abdominal radiograph showing [radiographic findings, e.g., dilated colon proximal to the obstruction, air-fluid levels].  CT scan of the abdomen and pelvis ordered to further evaluate the suspected obstruction and identify the etiology.  Patient is currently being managed with bowel rest, intravenous fluids, and nasogastric tube placement for decompression.  Surgical consultation requested to evaluate the need for surgical intervention.  Plan is to monitor patient's clinical status, electrolyte balance, and response to conservative management.  Diagnosis:  Large bowel obstruction.  ICD-10 code: [appropriate ICD-10 code, e.g., K56.60, K56.69 depending on etiology].