Congenital malformation of larynx, unspecified

This code signifies a birth defect affecting the larynx where the specific nature of the malformation is not documented. It indicates an anatomical abnormality of the voice box present at birth, without further detail regarding its type (e.g., laryngomalacia, laryngeal web, subglottic stenosis).

Use this code when documentation indicates a congenital laryngeal anomaly but lacks specificity regarding the exact type of malformation. This is appropriate when the physician has not yet identified or documented a more precise diagnosis, or when the specific type of malformation is truly unknown.

• Avoid using this code if a more specific congenital laryngeal malformation (e.g., Q31.0 for laryngeal web) is documented.
• Query the provider for more specific documentation if possible, as this code represents an unspecified condition.
• This code should be sequenced as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis if it is a co-morbidity.