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Q18

Non-billable

Other congenital malformations of face and neck

Q18 is the ICD-10-CM code for Other congenital malformations of face and neck. It is a non-billable category code — use a more specific child code such as Q18.0 for billing.

Status
Header (non-billable)
Chapter
Q00-Q99
Subcodes
10
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

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)

Frequently asked questions

What is ICD-10 code Q18?
Q18 is the ICD-10-CM code for "Other congenital malformations of face and neck". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q18 a billable code?
No — Q18 is a non-billable header code. Use a more specific child code (such as Q18.0) for billing.
What are the subcodes of Q18?
Q18 has 10 more specific child codes, including Q18.0, Q18.1, Q18.2.
What is excluded from 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).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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