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CPT 43754: Diagnostic Gastric Lavage with Specimen Collection

CPT code 43754 denotes diagnostic gastric lavage: insertion of a gastric tube, instillation of fluid to wash the stomach, and suction retrieval of washings sent to the laboratory. This procedure is used to obtain gastric contents for toxicology, microbiology, or other laboratory analysis and remains relevant for acute care settings where rapid specimen collection informs diagnosis and management. Nationwide, use of this code affects reimbursement workflows, laboratory coordination, and procedural documentation standards.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and appropriate sites of service, typical billing considerations, and benchmark topics impacting coverage and payment. The publication outlines coding context and common modifiers applicable to procedural codes like this one, summarizes typical clinical indications and operational workflows, and highlights areas where policy or documentation updates can affect claims processing and reimbursement. Data not available in the input is noted where applicable.

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Billing Code Overview

CPT code 43754 describes a procedure in which the provider inserts a tube into the stomach, instills fluid to wash the stomach, and suctions the washings back out for submission to the laboratory for analysis. This procedure is a diagnostic gastric lavage intended to obtain stomach contents for testing.

Service type: Diagnostic gastric lavage with specimen collection
Typical site of service: Hospital inpatient or outpatient setting, emergency department, or procedural suite where gastric tube placement and aspiration can be safely performed

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CPT 43754: Diagnostic Gastric Lavage with Specimen Collection

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Billing Code Overview

Service type: Diagnostic gastric lavage with specimen collection
Typical site of service: Hospital inpatient or outpatient setting, emergency department, or procedural suite where gastric tube placement and aspiration can be safely performed

Clinical & Coding Specifications

Clinical Context

A 58-year-old inpatient with suspected upper gastrointestinal bleeding undergoes bedside gastric lavage. The provider inserts a nasogastric or orogastric tube into the stomach, instills sterile saline to irrigate the gastric contents, and suctions the effluent for gross inspection and laboratory testing (e.g., occult blood, cytology, microbiology). Typical indications include evaluation of hematemesis, melena, or assessment of gastric contents prior to endoscopy. The clinical workflow includes brief informed consent when appropriate, placement of the tube with verification of position (aspiration of gastric fluid or pH testing), instillation of aliquots of fluid, suction and collection of washings into appropriate containers, labeling and sending specimens to the laboratory, documentation of reason for procedure, volume instilled and recovered, patient tolerance, and any immediate complications such as epistaxis, aspiration, or oxygen desaturation. Procedure time is short and commonly performed in an emergency department, inpatient ward, or intensive care unit; the procedure may be performed by emergency physicians, hospitalists, intensivists, or trained nursing staff under protocol, with physician oversight when required.

Coding Specifications

Modifier	Description	When to Use
`11`	Office or Other Outpatient Service	Use when the service represents the physician or other qualified health care professional's usual service in an outpatient setting and is the primary encounter.
`22`	Increased Procedural Services	Use when work or time substantially exceeds usual requirements because of documented complexity beyond the typical lavage.
`23`	Unusual Anesthesia	Use when the procedure required general anesthesia in an unusual circumstance (rare for gastric lavage).
`26`	Professional Component	Use if billing a split/shared service and only the professional component is being billed (e.g., interpretation if applicable).
`52`	Reduced Services	Use when a reduced service was performed compared to the full gastric lavage (documentation must explain reduction).
`53`	Discontinued Procedure	Use when the procedure was started but discontinued due to patient instability or other documented reason.
`62`	Two Surgeons	Use when two surgeons are required and both meet criteria for reporting (rare for this procedure).
`63`	Procedure Performed on Infants Less Than 4 kg	Use if patient meets weight criteria and applicable (pediatric cases).
`76`	Repeat Procedure by Same Physician	Data not available in the input.
`78`	Unplanned Return to OR	Use when an unplanned return to the operating room occurs related to this procedure (rare for lavage).
`80`	Assistant Surgeon	Use when an assistant surgeon actively assists with the procedure and meets criteria.

Taxonomy Code	Specialty	Notes
`207P00000X`	Emergency Medicine Physician	Performs gastric lavage in ED for acute upper GI bleeding or decontamination.
`208000000X`	Hospitalist/Internal Medicine Physician	Manages inpatients requiring diagnostic lavage or pre-endoscopic evaluation.
`2084P0800X`	Critical Care Medicine Physician	Performs procedure in ICU for unstable or high-risk patients.
`3336C0002X`	Certified Registered Nurse Anesthetist	May assist when airway or sedation management is required.
`363L00000X`	Registered Nurse	Performs tube placement and lavage under protocol or direct supervision.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`K92.0`	Hematemesis	Direct indication for gastric lavage to evaluate or clear blood from the stomach prior to further diagnostic procedures.
`K92.1`	Melena	Supports need for gastric content assessment and possible lavage when source of upper GI bleeding is suspected.
`R19.7`	Diarrhea, unspecified	May prompt gastric/enteric specimen collection in differential diagnosis when infectious etiologies are considered.
`T36.0X5A`	Adverse effect of penicillin, initial encounter	Example toxin/poisoning diagnosis where gastric decontamination may be considered; lavage may be performed per institutional protocols.
`T45.1X5A`	Adverse effect of antibiotics, initial encounter	Another potential indication for gastric lavage in severe ingestion scenarios.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`43239`	Upper gastrointestinal endoscopy with biopsy, single or multiple	Performed after gastric lavage when endoscopic evaluation for bleeding or pathology is indicated.
`43235`	Esophagogastroduodenoscopy, diagnostic, with or without collection of specimen(s) by brushing or washing	Diagnostic endoscopy often follows lavage to visualize source of bleeding or obtain washings under direct visualization.
`36415`	Collection of venous blood by venipuncture	Commonly performed concurrently for laboratory studies such as CBC, crossmatch, or coagulation tests in bleeding patients.
`99000`	Handling and/or conveyance of specimen for transfer from patient to laboratory (for hospital use)	Used when documenting specimen handling related to gastric washings sent to the laboratory.
`96372`	Therapeutic, prophylactic, or diagnostic injection (e.g., medication administration)	May be used if medications (e.g., antiemetic, sedative) are administered as part of procedure preparation or patient management.

CPT 43752: Nasogastric or Orogastric Tube Placement for Gastric Aspiration

CPT-43753-GASTRIC-INTUBATION-WITH-LAVAGE

CPT 43753: Gastric Intubation with Lavage

CPT-43755-GASTRIC-TUBE-INSERTION-AND-GASTRIC-SECRETION-TESTING

CPT 43755: Gastric Tube Insertion with Gastric Secretion Collection

CPT-43756-PROCEDURE-43756

CPT 43756: Clinical Procedure 43756

CPT-43757-GASTROINTESTINAL-SURGICAL-PROCEDURE

CPT 43757: Gastrointestinal Surgical Procedure

CPT-43761-NASOGASTRIC-OR-OROGASTRIC-DUODENAL-FEEDING-TUBE-PLACEMENT

CPT 43761: Nasogastric/Orogastric Tube Placement to Duodenum

CPT-43762-GASTROSTOMY-TUBE-REMOVAL-AND-REPLACEMENT

CPT 43762: Gastrostomy Tube Removal and Replacement

CPT-43763-GASTROSTOMY-TUBE-REVISION-AND-REPLACEMENT

CPT 43763: Revision and Replacement of Gastrostomy Tube without Imaging Guidance

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
`11`	Office or Other Outpatient Service	Use when the service represents the physician or other qualified health care professional's usual service in an outpatient setting and is the primary encounter.
`22`	Increased Procedural Services	Use when work or time substantially exceeds usual requirements because of documented complexity beyond the typical lavage.
`23`	Unusual Anesthesia	Use when the procedure required general anesthesia in an unusual circumstance (rare for gastric lavage).
`26`	Professional Component	Use if billing a split/shared service and only the professional component is being billed (e.g., interpretation if applicable).
`52`	Reduced Services	Use when a reduced service was performed compared to the full gastric lavage (documentation must explain reduction).
`53`	Discontinued Procedure	Use when the procedure was started but discontinued due to patient instability or other documented reason.
`62`	Two Surgeons	Use when two surgeons are required and both meet criteria for reporting (rare for this procedure).
`63`	Procedure Performed on Infants Less Than 4 kg	Use if patient meets weight criteria and applicable (pediatric cases).
`76`	Repeat Procedure by Same Physician	Data not available in the input.
`78`	Unplanned Return to OR	Use when an unplanned return to the operating room occurs related to this procedure (rare for lavage).
`80`	Assistant Surgeon	Use when an assistant surgeon actively assists with the procedure and meets criteria.

Taxonomy Code	Specialty	Notes
`207P00000X`	Emergency Medicine Physician	Performs gastric lavage in ED for acute upper GI bleeding or decontamination.
`208000000X`	Hospitalist/Internal Medicine Physician	Manages inpatients requiring diagnostic lavage or pre-endoscopic evaluation.
`2084P0800X`	Critical Care Medicine Physician	Performs procedure in ICU for unstable or high-risk patients.
`3336C0002X`	Certified Registered Nurse Anesthetist	May assist when airway or sedation management is required.
`363L00000X`	Registered Nurse	Performs tube placement and lavage under protocol or direct supervision.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`K92.0`	Hematemesis	Direct indication for gastric lavage to evaluate or clear blood from the stomach prior to further diagnostic procedures.
`K92.1`	Melena	Supports need for gastric content assessment and possible lavage when source of upper GI bleeding is suspected.
`R19.7`	Diarrhea, unspecified	May prompt gastric/enteric specimen collection in differential diagnosis when infectious etiologies are considered.
`T36.0X5A`	Adverse effect of penicillin, initial encounter	Example toxin/poisoning diagnosis where gastric decontamination may be considered; lavage may be performed per institutional protocols.
`T45.1X5A`	Adverse effect of antibiotics, initial encounter	Another potential indication for gastric lavage in severe ingestion scenarios.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`43239`	Upper gastrointestinal endoscopy with biopsy, single or multiple	Performed after gastric lavage when endoscopic evaluation for bleeding or pathology is indicated.
`43235`	Esophagogastroduodenoscopy, diagnostic, with or without collection of specimen(s) by brushing or washing	Diagnostic endoscopy often follows lavage to visualize source of bleeding or obtain washings under direct visualization.
`36415`	Collection of venous blood by venipuncture	Commonly performed concurrently for laboratory studies such as CBC, crossmatch, or coagulation tests in bleeding patients.
`99000`	Handling and/or conveyance of specimen for transfer from patient to laboratory (for hospital use)	Used when documenting specimen handling related to gastric washings sent to the laboratory.
`96372`	Therapeutic, prophylactic, or diagnostic injection (e.g., medication administration)	May be used if medications (e.g., antiemetic, sedative) are administered as part of procedure preparation or patient management.

CPT 43752: Nasogastric or Orogastric Tube Placement for Gastric Aspiration

CPT-43753-GASTRIC-INTUBATION-WITH-LAVAGE

CPT 43753: Gastric Intubation with Lavage

CPT-43755-GASTRIC-TUBE-INSERTION-AND-GASTRIC-SECRETION-TESTING

CPT 43755: Gastric Tube Insertion with Gastric Secretion Collection

CPT-43756-PROCEDURE-43756

CPT 43756: Clinical Procedure 43756

CPT-43757-GASTROINTESTINAL-SURGICAL-PROCEDURE

CPT 43757: Gastrointestinal Surgical Procedure

CPT-43761-NASOGASTRIC-OR-OROGASTRIC-DUODENAL-FEEDING-TUBE-PLACEMENT

CPT 43761: Nasogastric/Orogastric Tube Placement to Duodenum

CPT-43762-GASTROSTOMY-TUBE-REMOVAL-AND-REPLACEMENT

CPT 43762: Gastrostomy Tube Removal and Replacement

CPT-43763-GASTROSTOMY-TUBE-REVISION-AND-REPLACEMENT

CPT 43763: Revision and Replacement of Gastrostomy Tube without Imaging Guidance

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.

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CPT 43754: Diagnostic Gastric Lavage with Specimen Collection

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Billing Code Overview

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OpenPayer

CPT 43754: Diagnostic Gastric Lavage with Specimen Collection

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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