CPT 31629 Bronchoscopic TBNA Reimbursement

CPT code 31629 denotes diagnostic bronchoscopy with transbronchial needle aspiration (TBNA) to obtain biopsies from the trachea, mainstem bronchi, or lobar bronchi. This bronchoscopic sampling technique is integral to diagnosing central airway and peribronchial lesions, staging lung cancer, and evaluating other intrathoracic diseases. Nationally, accurate coding of 31629 affects clinical documentation, procedure tracking, and claims adjudication for hospitals and outpatient facilities that perform airway endoscopy.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical indications and typical sites of service, common billing considerations, and benchmarking elements relevant to payer coverage and claims processing. The publication highlights coding context for bronchoscopic TBNA and summarizes payer considerations that influence reimbursement and utilization management.

The report provides practical reference points for administrators, coding professionals, and clinicians: how 31629 maps to bronchoscopic diagnostic workflows, where the service is typically delivered, and what to look for in payer policies. Data not available in the input is noted where applicable. The focus is national; no state-specific policy detail is included.

Billing Code Overview

CPT code 31629 describes the use of a diagnostic rigid or flexible bronchoscope to obtain one or more biopsies from the trachea, main stem, and/or lobar bronchus using a transbronchial needle aspiration technique. The procedure involves bronchoscopic visualization of the central airways and sampling of tissue or lymph nodes via needle aspiration to obtain diagnostic material.

Service type: Diagnostic bronchoscopic transbronchial needle aspiration biopsy
Typical site of service: Hospital outpatient department, ambulatory surgery center, or endoscopy suite where bronchoscopic diagnostic procedures are performed

Clinical Context

A 62-year-old patient with a 40-pack-year smoking history presents with progressive cough, hemoptysis, and an indeterminate upper lobe lung mass on chest CT. Pulmonology evaluates the patient and schedules a diagnostic bronchoscopy with transbronchial needle aspiration (TBNA) to sample central airway and peribronchial lymph node tissue for cytology and pathology. The procedure is performed in an outpatient endoscopy suite under moderate sedation (monitored anesthesia care) with continuous cardiorespiratory monitoring. A flexible bronchoscope is advanced through the vocal cords into the trachea and mainstem bronchi; real-time visualization identifies an intraluminal lesion and adjacent lymph node stations. Multiple TBNA passes are performed using a dedicated aspiration needle to obtain core and cytologic material; specimens are sent for rapid on-site evaluation (ROSE), flow cytometry, and microbiology as indicated. Post-procedure monitoring includes recovery from sedation, assessment for bleeding or pneumothorax, and discharge instructions. The clinical workflow includes pre-procedure consent and anticoagulation review, intra-procedure documentation of scope type, number and location of biopsies, needle size, sample adequacy, and ROSE findings, and post-procedure pathology integration for staging and diagnosis.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when reporting only the physician interpretation/professional portion separate from technical facility services.

Taxonomy Code	Specialty	Notes
`207RP1000X`	Pulmonology	Pulmonologists commonly perform diagnostic bronchoscopy/TBNA.
`2080P0206X`	Thoracic Surgery	Thoracic surgeons perform bronchoscopic biopsies when combined with surgical staging.
`207L00000X`	Interventional Pulmonology	Interventional pulmonologists perform advanced airway procedures including TBNA and EBUS-guided sampling.
`363LP0800X`	Pulmonary Critical Care Medicine	Pulmonary critical care physicians perform bronchoscopies in both elective and inpatient settings.
`2086S0121X`	Diagnostic Radiology	Radiologists may assist with image-guided biopsy planning and interpretation.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C34.90`	Malignant neoplasm of unspecified part of unspecified bronchus or lung	Central or lobar masses require tissue diagnosis via TBNA for histologic confirmation and staging.
`R04.2`	Hemoptysis, unspecified	Hemoptysis prompts bronchoscopic evaluation and targeted TBNA to identify bleeding source or underlying malignancy.
`J98.4`	Other disorders of lung, not elsewhere classified	Includes peribronchial masses or airway abnormalities sampled by TBNA for diagnosis.
`R05`	Cough	Persistent cough with imaging findings may lead to bronchoscopic TBNA to obtain diagnostic tissue.
`R91.8`	Other nonspecific abnormal finding of lung field	Indeterminate radiographic findings prompting bronchoscopic biopsy including TBNA for tissue diagnosis.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`31622`	Bronchoscopy, flexible, transbronchial lung biopsy(s), without fluoroscopic guidance	Transbronchial forceps biopsy of peripheral lung tissue that may be performed in conjunction with TBNA to sample parenchymal lesions.
`31623`	Bronchoscopy, flexible, transbronchial lung biopsy(s), with fluoroscopic guidance	Same as `31622` but with fluoroscopic guidance; used when both TBNA and transbronchial biopsies require imaging.
`31628`	Bronchoscopy, rigid or flexible, with placement of tracheal/bronchial stent	Performed when endobronchial obstruction requires immediate stenting following diagnostic TBNA or therapeutic intervention.
`31631`	Thoracic endobronchial biopsy, intraluminal (forceps)	Intraluminal forceps biopsy may be performed alongside TBNA when visible endobronchial lesions are present.
`32505`	Thoracentesis, diagnostic	May be performed before or after bronchoscopy if pleural effusion sampling is required for staging or diagnosis.

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Summary & Overview

CPT 31629: Bronchoscopic Transbronchial Needle Aspiration Biopsy