stridor

DEFINITION of stridor

Stridor is a respiratory sign characterized by a harsh, high-pitched vibratory noise heard during inspiration, expiration, or both. It results from turbulent airflow through a partially obstructed upper airway. It is distinct from wheezing (which usually originates in the lower airways) and is often indicative of conditions such as croup, epiglottitis, laryngomalacia, or foreign body aspiration.

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ETYMOLOGY of stridor

latin Derived from the Latin word stridor, meaning “creaking,” “grating,” “hissing,” or “harsh sound,” from the verb stridere (to creak or hiss)

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Related Terms

• Dyspnea (Difficulty breathing)
• Wheezing (Lower airway sound)
• Croup (Laryngotracheobronchitis)
• Laryngomalacia (Softening of laryngeal tissues)
• Epiglottitis (Inflammation of the epiglottis)
• Airway Obstruction

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Coding and Coding Nuances:

ICD-10 Codes

• R06.1 (Stridor) — Note: ICD-10-CM codes vary in length from 3 to 7 characters. R06.1 is a complete, valid code without further subdivision.
• Q31.2 (Congenital laryngeal stridor) — Used if the stridor is congenital.
• P28.89 (Other specified respiratory conditions originating in the perinatal period) — Sometimes used for newborns with stridor not elsewhere classified.

CPT Codes

• N/A (Stridor is a symptom/diagnosis, not a procedure. CPT codes represent medical services.)
• 31575 (Laryngoscopy, flexible; diagnostic) — Common procedure code used to evaluate the cause of stridor.
• 31579 (Laryngoscopy, flexible; with biopsy) — Used if tissue sample is taken during evaluation.

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DERIVATIONS of stridor

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Query functionality

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Med roots Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms