Q18
Header — not billableOther congenital malformations of face and neck
The ICD-10 code for other congenital malformations of face and neck is Q18.
Q18 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 10 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under Q18
- Q18.0Sinus, fistula and cyst of branchial cleft
- Q18.1Preauricular sinus and cyst
- Q18.2Other branchial cleft malformations
- Q18.3Webbing of neck
- Q18.4Macrostomia
- Q18.5Microstomia
- Q18.6Macrocheilia
- Q18.7Microcheilia
- Q18.8Other specified congenital malformations of face and neck
- Q18.9Congenital malformation of face and neck, unspecified
Related codes in this category
- Q10Congenital malformations of eyelid, lacrimal apparatus and orbitnon-billable header
- Q11Anophthalmos, microphthalmos and macrophthalmosnon-billable header
- Q12Congenital lens malformationsnon-billable header
- Q13Congenital malformations of anterior segment of eyenon-billable header
- Q14Congenital malformations of posterior segment of eyenon-billable header
- Q15Other congenital malformations of eyenon-billable header
- Q16Congenital malformations of ear causing impairment of hearingnon-billable header
- Q17Other congenital malformations of earnon-billable header
- Q18Other congenital malformations of face and necknon-billable header