CPT 0652T: Diagnostic Transnasal Upper Endoscopy

CPT code 0652T denotes a diagnostic transnasal upper endoscopy (esophagogastroduodenoscopy) in which an endoscope is passed through the nose into the esophagus, stomach, and duodenum, with optional specimen collection by brushing or washing. This procedure code captures a minimally invasive diagnostic approach that can improve patient comfort and access to mucosal sampling for histologic or cytologic analysis. Nationally, the code matters for standardizing reporting of transnasal endoscopic evaluations and for payer coverage determinations tied to diagnostic endoscopy services.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, information about typical sites of service, and an outline of the common modifiers associated with billing for this type of endoscopic service (listed in metadata). The publication also summarizes payer coverage considerations and coding relationships relevant to diagnostic endoscopy billing practices. Where specific payer policies, reimbursement benchmarks, or related mappings are not provided in the input, the report notes that data is not available in the input.

Billing Code Overview

CPT code 0652T describes a diagnostic upper endoscopy performed by inserting an endoscope through the nose and advancing it into the esophagus, stomach, and duodenum. The procedure may include collection of specimens by brushing or washing for diagnostic evaluation.

Service type: Diagnostic upper endoscopy via transnasal route with possible specimen collection
Typical site of service: Ambulatory surgical center or hospital outpatient department; may also occur in endoscopy suites

Clinical Context

A 56-year-old patient presents to the gastroenterology clinic with progressive dyspepsia, intermittent epigastric pain, and unintentional weight loss over two months. The patient has a history of chronic gastroesophageal reflux disease and iron-deficiency anemia. After evaluation in clinic, the gastroenterologist schedules an upper endoscopic diagnostic evaluation.

The procedure performed is a diagnostic esophagogastroduodenoscopy via a transnasal approach (0652T). The patient arrives to an ambulatory endoscopy suite after pre-procedure assessment and informed consent. Topical nasal anesthetic and decongestant are applied; minimal sedation or anxiolysis may be administered per protocol. The provider advances a thin endoscope through the nasal passage into the esophagus, inspects the esophageal mucosa, stomach, and proximal duodenum, and documents findings. Specimens may be collected by brushing or washing for cytology, culture, or H. pylori testing. Post-procedure the patient is observed briefly, discharged with post-procedure instructions, and pathology/cytology results are routed to the ordering provider for follow-up.

Coding Specifications

Modifier	Description	When to Use
`23`	Unusual anesthesia	Use when procedure performed without general anesthesia but an unusual circumstance requires use of anesthesia services that are not typically needed for the procedure.

Taxonomy Code	Specialty	Notes
`207K00000X`	Gastroenterology	Gastroenterologists most commonly perform diagnostic upper endoscopy procedures.
`208D00000X`	General Surgery	General surgeons may perform diagnostic and therapeutic upper endoscopy in operative settings.
`208000000X`	Internal Medicine	Hospital-based internists or hospitalists may perform or supervise endoscopic procedures in some settings.
`363L00000X`	Otolaryngology	Otolaryngologists may perform transnasal endoscopic evaluation in select cases involving nasal access or coexisting sinonasal issues.
`367500000X`	Nurse Anesthetist	Provides anesthesia support when sedation or airway management is required in the endoscopy suite.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`K21.9`	Gastroesophageal reflux disease without esophagitis	Common indication for diagnostic upper endoscopy to evaluate reflux-related mucosal injury and complications.
`R10.13`	Epigastric pain	Non-specific upper abdominal pain prompting evaluation with endoscopy to assess peptic disease or other mucosal pathology.
`R14.0`	Abdominal bloating	Symptom that may lead to endoscopic evaluation when associated with other alarm features.
`D50.9`	Iron deficiency anemia, unspecified	Unexplained iron-deficiency anemia is an indication for upper endoscopy to evaluate for upper GI blood loss.
`K29.70`	Gastritis, unspecified, without bleeding	Dyspepsia and suspected gastritis are common reasons to inspect gastric mucosa and obtain washings/brushings.
`K25.9`	Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation	Peptic ulcer disease suspected on clinical grounds is evaluated by endoscopy for diagnosis and biopsy as indicated.
`B96.81`	Helicobacter pylori as the cause of diseases classified elsewhere	Endoscopy with brushing/washing can obtain specimens for H. pylori testing when infection is suspected.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`43235`	Esophagogastroduodenoscopy, flexible, transoral; diagnostic, with collection of specimens by brushing or washing	A standard transoral diagnostic EGD frequently performed as an alternative to transnasal approach; may be used before or after based on patient tolerance.
`43239`	Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple	Performed when mucosal biopsies are required in addition to or instead of brushing/washing obtained during diagnostic endoscopy.
`43246`	Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound, diagnostic	Performed when deeper wall or peri-visceral assessment is needed following findings on diagnostic endoscopy.
`43249`	Esophagogastroduodenoscopy, flexible, transoral; with dilation of esophageal stricture during same session	Therapeutic code used when dilation is performed during or after diagnostic endoscopy for symptomatic strictures.
`99152`	Moderate sedation services provided by the same physician performing the procedure (initial 30 minutes)	Billed when moderate sedation is administered by the physician during the endoscopic procedure and meets criteria for professional sedation reporting.

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Summary & Overview