Summary & Overview
CPT 70370: Fluoroscopic/Magnified Exam of Pharynx and Larynx
CPT code 70370 denotes a fluoroscopic and/or magnification examination of the pharynx or larynx designed to diagnose swallowing disorders, breathing difficulties, or voice box abnormalities. This functional imaging procedure provides dynamic visualization of the upper aerodigestive tract and informs diagnostic, therapeutic, and care-planning decisions for dysphagia, aspiration risk, stridor, and related conditions. Nationally, accurate coding and documentation for 70370 influence utilization tracking, clinical pathway selection, and reimbursement for otolaryngology, speech-language pathology, and radiology services.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code's clinical intent and service context, common modifier considerations, and where 70370 fits among related diagnostic imaging procedures. The publication summarizes typical sites of service and clinical scenarios prompting use of the code, and highlights benchmarks and policy updates relevant to coverage and billing practices. This resource is aimed at clinicians, coding professionals, and policy analysts seeking a clear, national-level briefing on CPT code 70370 and its role in diagnosing pharyngeal and laryngeal functional disorders.
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Billing Code Overview
CPT code 70370 describes a fluoroscopic and/or magnification examination of the pharynx or larynx to evaluate swallowing or breathing difficulties or abnormalities of the voice box. The procedure involves dynamic imaging using fluoroscopy and may include magnification techniques to visualize structure and function during deglutition or phonation.
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Service type: Diagnostic imaging procedure of the upper aerodigestive tract focused on functional assessment (fluoroscopic/magnified pharyngeal and laryngeal examination).
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Typical site of service: Hospital outpatient department, imaging center, or clinic-based radiology/otolaryngology suite where fluoroscopic equipment and appropriate personnel are available.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult referred to an otolaryngology or speech-language pathology team for evaluation of dysphagia, aspiration, unexplained coughing with eating, or voice and breathing abnormalities. The clinician schedules a dynamic radiographic swallowing study using fluoroscopy and magnification to visualize bolus transit through the oral cavity, pharynx, and upper esophageal sphincter and to assess laryngeal function.
A typical workflow: the patient arrives to an outpatient radiology suite or an ambulatory procedure area accompanied by a clinician (otolaryngologist or speech-language pathologist). After brief history and consent, the patient is given standardized food and liquid consistencies mixed with radiopaque contrast. Real-time fluoroscopy with magnification is performed while the patient swallows to identify penetration, aspiration, residue, delayed swallow initiation, or structural abnormalities of the pharynx and larynx. The procedure is documented with findings, impressions, and recommendations for diet modification, therapy, or further ENT evaluation. Images and cine loops are archived to the PACS for the radiology report and multidisciplinary review.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the physician component (interpretation) separated from technical services |