ICD-10-CM · Chapter 17 · Q00-QA1
Q18 Other congenital malformations of face and neck
Excludes 1 (cannot be coded together)
- cleft lip and cleft palate (Q35-Q37)
- conditions classified to Q67.0-Q67.4
- congenital malformations of skull and face bones (Q75.-)
- cyclopia (Q87.0)
- dentofacial anomalies [including malocclusion] (M26.-)
- malformation syndromes affecting facial appearance (Q87.0)
- persistent thyroglossal duct (Q89.2)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Q18..0 | Sinus, fistula and cyst of branchial cleft | Yes |
| Q18..1 | Preauricular sinus and cyst | Yes |
| Q18..2 | Other branchial cleft malformations | Yes |
| Q18..3 | Webbing of neck | Yes |
| Q18..4 | Macrostomia | Yes |
| Q18..5 | Microstomia | Yes |
| Q18..6 | Macrocheilia | Yes |
| Q18..7 | Microcheilia | Yes |
| Q18..8 | Other specified congenital malformations of face and neck | Yes |
| Q18..9 | Congenital malformation of face and neck, unspecified | Yes |
Last reviewed: September 2026