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CPT 43500: Gastrotomy for Foreign Body Exploration and Removal

CPT code 43500 describes a gastrotomy and exploration of the stomach for a foreign body, with removal if found. As an open abdominal surgical procedure, this code is used for operative management when endoscopic retrieval is not possible or appropriate. The code matters nationally because it captures resource-intensive, operative care in acute surgical settings and informs hospital and payer payment for emergent and elective foreign body management.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for when CPT code 43500 is reported, typical sites of service, and common billing considerations. The publication summarizes benchmark utilization and payment themes, highlights relevant coding and documentation priorities, and outlines where policy updates or payer-specific rules may affect claims processing and reimbursement. This overview supports billing managers, surgical coders, and policy analysts seeking a national perspective on reporting and valuing operative gastrotomy for foreign body extraction.

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Billing Code Overview

CPT code 43500 describes a gastrotomy with exploration for a foreign body, involving an incision through the abdomen and into the stomach to locate and, if present, remove a foreign object. The procedure is an operative abdominal service focused on direct surgical access to the stomach for diagnostic exploration and foreign body extraction.

Service type: Surgical — Open abdominal procedure (gastrotomy and foreign body removal)

Typical site of service: Hospital operating room or surgical suite

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CPT 43500: Gastrotomy for Foreign Body Exploration and Removal

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Billing Code Overview

Service type: Surgical — Open abdominal procedure (gastrotomy and foreign body removal)

Typical site of service: Hospital operating room or surgical suite

Clinical & Coding Specifications

Clinical Context

A typical patient is an adult presenting to the emergency department after ingesting a sharp or large foreign body, or a pediatric patient with suspected gastric foreign body causing persistent vomiting or abdominal pain. Initial evaluation includes history, focused physical exam, and imaging (upright abdominal radiographs, chest x‑ray, or CT abdomen) demonstrating a radiopaque object within the stomach or signs of obstruction/complication. When endoscopic removal is unsuccessful or not feasible due to object size, shape, location, or patient condition, the surgical team performs an open gastrotomy (CPT 43500) under general anesthesia. The operation involves an abdominal incision, gastric inspection, extraction of the foreign body, irrigation, assessment for mucosal injury or perforation, and gastric closure. Postoperative care includes monitoring for bleeding, infection, return of bowel function, pain control, and follow‑up imaging or endoscopy as indicated. Typical sites of service are the hospital operating room or emergency surgery suite, and the typical service type is an operative invasive procedure (open surgical).

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work required is substantially greater than typical for `43500`, with documentation of increased complexity.
`23`	Unusual anesthesia	Use when general anesthesia is not appropriate and substantial anesthesia is required for an unusually painful procedure.
`26`	Professional component	Use when reporting only the surgeon’s professional component separate from technical services if payer requires separation.
`50`	Bilateral procedure	Rarely applicable; use only if a bilateral gastric approach were reported and payer accepts bilateral modifiers for this service.
`51`	Multiple procedures	Use when `43500` is performed in addition to other distinct procedures during the same operative session.
`52`	Reduced services	Use if the procedure is intentionally partially reduced or not completed as planned.
`53`	Discontinued procedure	Use when the procedure was started but aborted for patient safety reasons prior to completion.
`59`	Distinct procedural service	Use when another procedure performed during the same operative session is separate and distinct from the gastrotomy.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct portions of the operation.
`66`	Surgical team approach	Use when a surgical team approach with multiple providers meets payer criteria.
`78`	Return to OR for a related procedure during the global period	Use if patient returns to the operating room for a related procedure during the global period.
`79`	Unrelated procedure or service by the same physician during the global period	Use if an unrelated operation is performed during the global period.
`52`	Reduced services	Use when service is partially reduced or not completed (duplicate entry for emphasis if needed by payer policy).
`53`	Discontinued procedure	Use when the procedure is terminated due to extenuating circumstances (duplicate entry for emphasis if needed by payer policy).

Taxonomy Code	Specialty	Notes
208000000X	General Surgery	Most common specialty performing open gastrotomy for foreign body removal.
208600000X	Pediatric Surgery	Common when children require operative removal of gastric foreign bodies.
207P00000X	Gastroenterology	May be involved preoperatively for endoscopic attempt; rarely performs open gastrotomy.
208800000X	Trauma Surgery	Performs gastrotomy when foreign body ingestion occurs in trauma/acute care settings.
207T00000X	Surgical Critical Care	Involved when critically ill patients require operative intervention and postoperative ICU care.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`T18.1XXA`	Foreign body in esophagus, initial encounter	Relevant when a swallowed object is lodged and requires evaluation; if migrated to stomach, surgical removal may follow.
`T18.2XXA`	Foreign body in stomach, initial encounter	Directly indicates a gastric foreign body prompting `43500` when endoscopic removal is not possible.
`K31.89`	Other diseases of stomach and duodenum	Includes mucosal injury or gastritis associated with foreign body impaction leading to surgical intervention.
`K35.80`	Unspecified acute appendicitis (used as placeholder when acute abdomen suspected)	Included when patient presents with acute abdomen and diagnosis is unclear prior to exploration; exploratory gastrotomy may be performed.
`K57.20`	Diverticulitis of large intestine without perforation or abscess	Listed as a potential coexisting intra‑abdominal condition that may be evaluated during exploration.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`43239`	Esophagogastroduodenoscopy, flexible, diagnostic, including collection of specimen(s) by brushing or washing, when performed (EGD)	Often performed before `43500` for endoscopic evaluation and attempted removal of a gastric foreign body; may obviate need for open surgery.
`43254`	Esophagogastroduodenoscopy with removal of foreign body(s) from the esophagus	Endoscopic removal code used when the foreign body is accessible endoscopically and avoids `43500`.
`49000`	Exploratory laparotomy, exploratory celiotomy with or without biopsy(s) (separate procedure)	Performed when broader abdominal exploration is required in addition to gastrotomy; may precede or accompany `43500`.
`43280`	Esophagogastroduodenoscopy, flexible, with endoscopic mucosal resection	Used when mucosal injury or lesion requires endoscopic treatment during diagnostic workup; relates to endoscopic management options before/after surgery.
`43820`	Partial gastrectomy, distal; with gastroduodenostomy (Billroth I)	Performed when removal of a foreign body is complicated by gastric necrosis or injury requiring resection; an uncommon but related higher‑acuity procedure.
`49421`	Peritoneal drainage (separate procedure)	May be performed if contamination or abscess is present requiring drainage in conjunction with `43500`.

CPT 43501: Open Gastric Hemostasis, Incision and Vessel Ligation

CPT-43502-ESOPHAGEAL-LACERATION-REPAIR-HEMOSTASIS

CPT 43502: Repair of Lower Esophageal Laceration to Control Bleeding

CPT-43510-ESOPHAGEAL-STENT-PLACEMENT-PALLIATIVE-STRICTURE-RELIEF

CPT 43510: Esophageal Stent Placement for Stricture Palliation

CPT-43520-PYLOROMYOTOMY-FOR-PYLORIC-STENOSIS

CPT 43520: Pyloromyotomy for Hypertrophic Pyloric Stenosis

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work required is substantially greater than typical for `43500`, with documentation of increased complexity.
`23`	Unusual anesthesia	Use when general anesthesia is not appropriate and substantial anesthesia is required for an unusually painful procedure.
`26`	Professional component	Use when reporting only the surgeon’s professional component separate from technical services if payer requires separation.
`50`	Bilateral procedure	Rarely applicable; use only if a bilateral gastric approach were reported and payer accepts bilateral modifiers for this service.
`51`	Multiple procedures	Use when `43500` is performed in addition to other distinct procedures during the same operative session.
`52`	Reduced services	Use if the procedure is intentionally partially reduced or not completed as planned.
`53`	Discontinued procedure	Use when the procedure was started but aborted for patient safety reasons prior to completion.
`59`	Distinct procedural service	Use when another procedure performed during the same operative session is separate and distinct from the gastrotomy.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct portions of the operation.
`66`	Surgical team approach	Use when a surgical team approach with multiple providers meets payer criteria.
`78`	Return to OR for a related procedure during the global period	Use if patient returns to the operating room for a related procedure during the global period.
`79`	Unrelated procedure or service by the same physician during the global period	Use if an unrelated operation is performed during the global period.
`52`	Reduced services	Use when service is partially reduced or not completed (duplicate entry for emphasis if needed by payer policy).
`53`	Discontinued procedure	Use when the procedure is terminated due to extenuating circumstances (duplicate entry for emphasis if needed by payer policy).

Taxonomy Code	Specialty	Notes
208000000X	General Surgery	Most common specialty performing open gastrotomy for foreign body removal.
208600000X	Pediatric Surgery	Common when children require operative removal of gastric foreign bodies.
207P00000X	Gastroenterology	May be involved preoperatively for endoscopic attempt; rarely performs open gastrotomy.
208800000X	Trauma Surgery	Performs gastrotomy when foreign body ingestion occurs in trauma/acute care settings.
207T00000X	Surgical Critical Care	Involved when critically ill patients require operative intervention and postoperative ICU care.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`T18.1XXA`	Foreign body in esophagus, initial encounter	Relevant when a swallowed object is lodged and requires evaluation; if migrated to stomach, surgical removal may follow.
`T18.2XXA`	Foreign body in stomach, initial encounter	Directly indicates a gastric foreign body prompting `43500` when endoscopic removal is not possible.
`K31.89`	Other diseases of stomach and duodenum	Includes mucosal injury or gastritis associated with foreign body impaction leading to surgical intervention.
`K35.80`	Unspecified acute appendicitis (used as placeholder when acute abdomen suspected)	Included when patient presents with acute abdomen and diagnosis is unclear prior to exploration; exploratory gastrotomy may be performed.
`K57.20`	Diverticulitis of large intestine without perforation or abscess	Listed as a potential coexisting intra‑abdominal condition that may be evaluated during exploration.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`43239`	Esophagogastroduodenoscopy, flexible, diagnostic, including collection of specimen(s) by brushing or washing, when performed (EGD)	Often performed before `43500` for endoscopic evaluation and attempted removal of a gastric foreign body; may obviate need for open surgery.
`43254`	Esophagogastroduodenoscopy with removal of foreign body(s) from the esophagus	Endoscopic removal code used when the foreign body is accessible endoscopically and avoids `43500`.
`49000`	Exploratory laparotomy, exploratory celiotomy with or without biopsy(s) (separate procedure)	Performed when broader abdominal exploration is required in addition to gastrotomy; may precede or accompany `43500`.
`43280`	Esophagogastroduodenoscopy, flexible, with endoscopic mucosal resection	Used when mucosal injury or lesion requires endoscopic treatment during diagnostic workup; relates to endoscopic management options before/after surgery.
`43820`	Partial gastrectomy, distal; with gastroduodenostomy (Billroth I)	Performed when removal of a foreign body is complicated by gastric necrosis or injury requiring resection; an uncommon but related higher‑acuity procedure.
`49421`	Peritoneal drainage (separate procedure)	May be performed if contamination or abscess is present requiring drainage in conjunction with `43500`.

CPT 43501: Open Gastric Hemostasis, Incision and Vessel Ligation

CPT-43502-ESOPHAGEAL-LACERATION-REPAIR-HEMOSTASIS

CPT 43502: Repair of Lower Esophageal Laceration to Control Bleeding

CPT-43510-ESOPHAGEAL-STENT-PLACEMENT-PALLIATIVE-STRICTURE-RELIEF

CPT 43510: Esophageal Stent Placement for Stricture Palliation

CPT-43520-PYLOROMYOTOMY-FOR-PYLORIC-STENOSIS

CPT 43520: Pyloromyotomy for Hypertrophic Pyloric Stenosis

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

OpenPayer

CPT 43500: Gastrotomy for Foreign Body Exploration and Removal

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Billing Code Overview

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CPT 43500: Gastrotomy for Foreign Body Exploration and Removal

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References