ICD-10-CM · Chapter 17 · Q00-QA1
Q31 Congenital malformations of larynx
Excludes 1 (cannot be coded together)
- congenital laryngeal stridor NOS (P28.89)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Q31..0 | Web of larynx | Yes |
| Q31..1 | Congenital subglottic stenosis | Yes |
| Q31..2 | Laryngeal hypoplasia | Yes |
| Q31..3 | Laryngocele | Yes |
| Q31..5 | Congenital laryngomalacia | Yes |
| Q31..8 | Other congenital malformations of larynx | Yes |
| Q31..9 | Congenital malformation of larynx, unspecified | Yes |
Last reviewed: September 2026