Q31.5
ICD-10-CMThis code represents a congenital anomaly of the larynx where the laryngeal cartilage is softer than normal, leading to collapse of the supraglottic structures during inspiration. This collapse obstructs the airway, causing inspiratory stridor, particularly noticeable in infants.
Use this code for documented cases of congenital laryngomalacia, typically identified in infancy due to characteristic noisy breathing. Documentation should clearly state the diagnosis of laryngomalacia, often supported by direct laryngoscopy findings.
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