Q31: Congenital malformations of larynx

Codes under Q31 (Congenital malformations of larynx). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
Q31.0	Web of larynx	✓
Q31.1	Congenital subglottic stenosis	✓
Q31.2	Laryngeal hypoplasia	✓
Q31.3	Laryngocele	✓
Q31.5	Congenital laryngomalacia	✓
Q31.8	Other congenital malformations of larynx	✓
Q31.9	Congenital malformation of larynx, unspecified	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

Code the diagnosis right