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    v1.0.30
    OpenPayerBilling CodesExcision Procedures on the StomachCPT cpt-43632-partial-gastrectomy-with-gastrojejunostomy
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    CPT 43632: Partial Gastrectomy with Gastrojejunostomy

    Medicare pays $1885 on average nationally for this procedure.

    CPT code 43632 describes a partial gastrectomy where the surgeon excises the diseased portion of the stomach and restores continuity by connecting the remaining stomach to the jejunum (gastrojejunostomy); this surgical oncology procedure is a major abdominal resection typically performed in an inpatient operating room setting for patients with gastric cancer and other localized stomach diseases requiring resection.

    For related coverage guidance, see recent payer policy updates: Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disorders, Esophagogastroduodenoscopy (EGD) Coverage Policy, Radiofrequency Therapy for Fecal Incontinence.

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    Table of contents

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    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.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    43633Gastrectomy, partial, distal, with gastroduodenostomy (Billroth I)Alternative reconstruction option when the gastric remnant is anastomosed to the duodenum instead of jejunum; used based on tumor location and surgical judgment
    43631Gastrectomy, partial, distal (e.g., antrectomy) without specified reconstructionClosely related partial gastrectomy code; selection depends on extent of resection and reconstruction reported
    44320Exploration, peritoneal cavity; incision and biopsy(s)May be performed intraoperatively for staging, peritoneal biopsies, or assessment for metastatic disease prior to definitive resection
    49505Repair initial incisional or ventral hernia; reduciblePotential concurrent procedure if a ventral or incisional hernia is present and repaired at time of laparotomy
    49002Unlisted laparoscopy procedure, abdomen; diagnosticUsed for reporting atypical laparoscopic maneuvers or when no specific laparoscopy code fits additional intraoperative procedures
    43770Diagnostic endoscopy, small intestine; enteroscopy, push or device-assisted, diagnosticMay be performed preoperatively or postoperatively for evaluation of the small bowel or anastomosis if indicated

    Related Modifiers

    13 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    51Modifier –51 (Multiple Procedures) is used when the same provider performs multiple procedures in the same session to identify secondary, non‑exempt procedures and indicate payment reduction logic…- Use modifier -51 when the same provider performs multiple distinct procedures during the same patient encounter: report the highest‑valued procedure first (no modifier) and append -51 to…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…

    Showing 1–10 of 13

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    208600000X
    207L00000X
    207K00000X
    2082S0099X
    207UN0902X
    253Z00000X
    281P00000X
    1835E0208X

    Related Payer Policy Updates

    Specialty: Gastroenterology1 / 3

    10 rows

    PolicyPayerEffective Date
    Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disordersbcbsvermont2026-12-01
    Esophagogastroduodenoscopy (EGD) Coverage Policyevicore2026-11-05
    Radiofrequency Therapy for Fecal IncontinenceCigna2026-10-15
    Magnetic Sphincter Augmentation for the Treatment of Gastroesophageal Reflux Disease (GERD)univerahealthcare2026-10-15
    High-Resolution Anoscopy (HRA)Premera Bluecross2026-10-01
    Gastroesophageal and Gastrointestinal (GI) Services and ProceduresColorado Rocky Mountain Health Plans2026-10-01
    Fecal Analysis in the Diagnosis of Intestinal Dysbiosis and Fecal Microbiota Transplant TestingOscar Health2026-10-01
    Serum Testing for Hepatic Fibrosis in the Evaluation and Monitoring of Chronic Liver DiseaseOscar Health2026-10-01
    Pancreatic Enzyme Testing for Acute PancreatitisOscar Health2026-10-01
    Helicobacter pylori TestingOscar Health2026-10-01

    Related Codes

    CPT-43605-OPEN-BIOPSY-EXCISION-GASTRIC-LESION

    CPT 43605: Open Biopsy and Excision of Gastric Lesion

    CPT-43610-GASTRIC-EXPLORATION-LESION-EXCISION

    CPT 43610: Exploration of Stomach and Excision of Lesion

    CPT-43611-GASTRIC-TUMOR-EXCISION-SURGICAL-ONCOLOGY

    CPT 43611: Excision of Cancerous Tumor of the Stomach

    CPT-43620-ESOPHAGOENTEROSTOMY-AFTER-GASTRECTOMY

    CPT 43620: Esophagojejunostomy After Gastrectomy

    CPT-43621-TOTAL-GASTRECTOMY-SMALL-BOWEL-ANASTOMOSIS

    CPT 43621: Total Gastrectomy with Small Bowel-to-Stomach Anastomosis

    CPT-43622-TOTAL-GASTRECTOMY-ESOPHAGODUODENAL-POUCH-RECONSTRUCTION

    CPT 43622: Total Gastrectomy with Esophagoduodenostomy

    CPT-43631-PARTIAL-GASTRECTOMY-GASTRODUODENOSTOMY

    CPT 43631: Partial Gastrectomy with Gastroduodenostomy (Billroth I)

    CPT-43633-PARTIAL-GASTRECTOMY-STOMACH-RESECTION-RECONSTRUCTION

    CPT 43633: Distal Gastrectomy with Gastrojejunostomy

    CPT-43634-PARTIAL-GASTRECTOMY-WITH-INTESTINAL-POUCH-RECONSTRUCTION

    CPT 43634: Distal Gastrectomy with Intestinal Pouch Creation

    CPT-43635-GASTRIC-RESECTION-WITH-VAGOTOMY

    CPT 43635: Vagotomy with Distal Gastrectomy

    Showing 1–10 of 12

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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