ICD-10-CM · FY 2026 APRIL UPDATE
Q18
Other congenital malformations of face and neck
Diagnosis reference
Nonbillable categoryThis entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.
Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification
Related entries
Up to 30 descendants in this category
| CODE | DESCRIPTION | TYPE |
|---|---|---|
| Q18.0 | Sinus, fistula and cyst of branchial cleft | Billable |
| Q18.1 | Preauricular sinus and cyst | Billable |
| Q18.2 | Other branchial cleft malformations | Billable |
| Q18.3 | Webbing of neck | Billable |
| Q18.4 | Macrostomia | Billable |
| Q18.5 | Microstomia | Billable |
| Q18.6 | Macrocheilia | Billable |
| Q18.7 | Microcheilia | Billable |
| Q18.8 | Other specified congenital malformations of face and neck | Billable |
| Q18.9 | Congenital malformation of face and neck, unspecified | Billable |
Use the complete reference
This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.
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