Summary & Overview
CPT 43118: Distal Esophagectomy with Colonic/Small Bowel Reconstruction
CPT code 43118 represents a complex open esophagectomy involving removal of the distal two thirds of the esophagus, with possible partial gastrectomy and reconstruction using colon or small bowel. This high-acuity surgical procedure requires both abdominal and thoracic approaches and is performed in inpatient hospital settings. Nationally, codes like 43118 matter because they capture resource-intensive care, inform payment for major oncologic and benign esophageal disease interventions, and contribute to quality and utilization measurement for thoracic and general surgery services.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context about the procedure and typical sites of service, payer coverage considerations, common billing modifiers used with complex surgical claims, and related coding and documentation topics. The publication provides benchmarks for utilization and payment where available and summarizes relevant policy and administrative considerations that affect billing and reimbursement for major inpatient esophageal resections. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 43118 describes a major surgical resection of the distal two thirds of the esophagus, often including partial removal of the proximal stomach, with reconstruction of the alimentary tract using a segment of colon or small intestine. The operation requires both an abdominal incision and a thoracic (chest) incision.
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Service type: Major esophageal resection with intestinal interposition (open abdominal and thoracic surgery)
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Typical site of service: Inpatient acute care hospital (operating room and inpatient surgical ward or intensive care as clinically indicated)
Clinical & Coding Specifications
Clinical Context
A 62-year-old male with a distal esophageal adenocarcinoma involving the lower two-thirds of the esophagus presents with progressive dysphagia, weight loss, and intermittent aspiration. After staging studies (endoscopic ultrasound, CT chest/abdomen, PET as indicated) demonstrate localized disease without unresectable metastasis, the multidisciplinary team schedules a transthoracic esophagectomy with gastric or intestinal conduit reconstruction. The procedure described by 43118 (resection of the lower two-thirds of the esophagus with possible partial gastrectomy and replacement using colon or small bowel, requiring both abdominal and thoracic incisions) is performed under general anesthesia in an operating room with postoperative care in a surgical intensive care or step-down unit.
Preoperative workflow includes anesthesia evaluation, informed consent detailing risks (anastomotic leak, pulmonary complications), optimization of nutrition, and marking for possible staged or combined approaches. Intraoperative workflow involves thoracic and abdominal access, mobilization and resection of the diseased esophagus, preparation of the colonic or small bowel conduit, creation of the esophagointestinal anastomosis, hemostasis, and placement of drains. Postoperative workflow includes extubation planning, postoperative analgesia, early pulmonary hygiene, imaging (contrast swallow) to assess anastomotic integrity before initiating oral intake, and coordination of oncology and nutrition for adjuvant therapy and enteral feeding needs.
Coding Specifications
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