Other congenital malformations of face and neck (Q18)

• ICD-10 Index

  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

    • Congenital malformations of eye, ear, face and neck (Q10-Q18)

      • Other congenital malformations of face and neck (Q18)

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

Clinical Information for Other congenital malformations of face and neck (Q18)

Microstomia - A congenital defect in which the mouth is unusually small. (Dorland, 27th ed)

Macrostomia - Greatly exaggerated width of the mouth, resulting from failure of union of the maxillary and mandibular processes, with extension of the oral orifice toward the ear. The defect may be unilateral or bilateral. (Dorland, 27th ed)

Hypertelorism - Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.

Microstomia - A congenital defect in which the mouth is unusually small. (Dorland, 27th ed)

Loose Anagen Hair Syndrome - Benign childhood alopecia that improves spontaneously with aging. It is characterized by anagen hairs (misshapen hair bulbs and absent inner and outer root sheaths), thin, and sparse hairs that pulls out easily.

Hypertelorism - Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.

Hypertelorism - Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.

Instructional Notations

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

• 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