ICD-10-CM Q18: Other congenital malformations of face and neck

ICD-10-CM Diagnosis Code (2025)

Official Description for Q18

Other congenital malformations of face and neck

Coding Notes & Guidelines for Q18

Excludes1: Not Coded Here
  • 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)
Inclusion Terms

Branchial vestige

Inclusion Terms
  • Fistula of auricle, congenital
  • Cervicoaural fistula
Inclusion Terms
  • Branchial cleft malformation NOS
  • Cervical auricle
  • Otocephaly
Inclusion Terms

Pterygium colli

Inclusion Terms

Hypertrophy of lip, congenital

Inclusion Terms
  • Medial cyst of face and neck
  • Medial fistula of face and neck
  • Medial sinus of face and neck
Inclusion Terms

Congenital anomaly NOS of face and neck

Child Codes (More Specific Codes for Q18):

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

About ICD-10-CM Code Q18 (Other congenital malformations of face and neck)

ICD-10-CM code Q18 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Q18 became effective on October 1, 2024.

This page provides detailed information about Q18 - Other congenital malformations of face and neck. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other congenital malformations of face and neck.