Summary & Overview
CPT 43632: Partial Gastrectomy with Gastrojejunostomy Reconstruction
CPT code 43632 represents a partial gastrectomy with reconstruction by gastrojejunostomy, a major abdominal operation commonly performed for stomach cancer. This code matters nationally because it captures a high-acuity inpatient surgical service with significant perioperative resource use, implications for surgical outcomes, and impact on hospital and payer costs.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context about when this resection and jejunal anastomosis is performed, typical sites of service, and what the code denotes in claims documentation. The publication provides benchmark-oriented insights useful for billing and coding teams, revenue cycle analysts, and clinical leaders, including common coding considerations, typical service settings, and what to expect in terms of payer coverage patterns. Policy and reimbursement updates relevant to major abdominal oncology procedures are summarized to orient readers to national trends affecting inpatient surgical services.
This executive summary prepares readers to understand coding specificity for major gastric resections, compare payer practices, and locate areas where coding precision and clinical documentation intersect with reimbursement and quality measurement.
Billing Code Overview
CPT code 43632 describes a surgical procedure in which the provider excises the diseased portion of the stomach and reconnects the remnant of the stomach to the jejunum to maintain an uninterrupted digestive tract. This operation is typically performed for patients with gastric malignancy and involves resection of affected gastric tissue followed by a gastrojejunostomy reconstruction.
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Service type: Major abdominal surgery (gastrectomy with gastrojejunostomy reconstruction)
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Typical site of service: Inpatient hospital operating room with postoperative inpatient recovery
Clinical & Coding Specifications
Clinical Context
A 64-year-old male with biopsy-confirmed adenocarcinoma of the distal stomach presents with progressive weight loss, early satiety, and anemia. Preoperative staging with CT abdomen/pelvis and endoscopic ultrasound shows a resectable lesion without distant metastasis. The multidisciplinary team schedules a subtotal gastrectomy with Roux-en-Y gastrojejunostomy to remove the diseased portion of the stomach and restore continuity of the gastrointestinal tract. The patient is admitted to an inpatient hospital surgical service. Under general anesthesia, the surgical team performs an open or laparoscopic-assisted excision of the distal stomach (subtotal gastrectomy) with regional lymphadenectomy. The gastric remnant is anastomosed to the jejunum in a Roux-en-Y configuration to maintain an uninterrupted alimentary tract. Typical perioperative workflow includes preoperative optimization (blood type and crossmatch due to anemia), anesthesia evaluation, intraoperative frozen section as indicated, postoperative monitoring in a surgical ward or step-down unit, pain control, early ambulation, and a graduated diet. Indications for this procedure most commonly include malignant gastric neoplasms; less common indications include benign but symptomatic or refractory disease where resection is required. Typical site of service: inpatient hospital operating room. Service type: major operative procedure—open or laparoscopic gastrointestinal oncologic resection.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier/Not a valid HCPCS modifier for billing |