2025 CPT code 92520

Laryngeal function studies (aerodynamic and acoustic testing).

For performance of a single test (either aerodynamic or acoustic), use modifier 52 (Reduced Services). To report flexible fiberoptic laryngeal evaluation of swallowing and laryngeal sensory testing, use 92611-92617. To report other testing of laryngeal function (e.g., electroglottography), use 92700.

Yes, modifier 52 is applicable when only one of the two tests (either aerodynamic or acoustic) is performed.

Medical necessity is established by the presence of a voice disorder or laryngeal dysfunction that requires objective assessment to guide treatment.

In simple words: The doctor checks how well your voice box works by measuring your airflow and analyzing the sounds you make. This helps them figure out if there's a problem with your voice.

This procedure involves aerodynamic and acoustic testing to assess laryngeal function and evaluate voice disorders.Aerodynamic testing measures airflow from the lungs between the vocal folds using a face mask or mouthpiece connected to a transducer. Acoustic testing analyzes voice properties like pitch, loudness, and hoarseness by having the patient speak into a microphone connected to a display unit that generates a spectrographic chart.

Example 1: A patient with persistent hoarseness undergoes laryngeal function studies to determine the cause and severity of the voice disorder., A singer experiences vocal fatigue and undergoes aerodynamic and acoustic testing to assess vocal fold function and guide treatment., Following surgical removal of a laryngeal lesion, a patient undergoes laryngeal function studies to evaluate the effectiveness of the procedure and monitor recovery.

Documentation should include the patient's presenting symptoms, relevant medical history, the results of the aerodynamic and acoustic testing, and the physician's interpretation of the findings.

  • Specialties:Otolaryngology, Speech-Language Pathology
  • Place of Service:Office, Outpatient Hospital, Independent Clinic
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