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  3. Ch. Q00-QA0
  4. Sec. Q10-Q18
  5. Category Q18
Category Q18

Other congenital malformations of face and neck

Clinical Classification Guidelines

Specific Diagnosis Codes

Sinus, fistula and cyst of branchial cleft
Q18.0
Preauricular sinus and cyst
Q18.1
Other branchial cleft malformations
Q18.2
Webbing of neck
Q18.3
Macrostomia
Q18.4
Microstomia
Q18.5
Macrocheilia
Q18.6
Microcheilia
Q18.7
Other specified congenital malformations of face and neck
Q18.8
Congenital malformation of face and neck, unspecified
Q18.9
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Data updated for October 2025 release.

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