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

Q18 isn’t a code on its own. Choose one of the 10 codes beneath it, the one the documentation supports.

Official description

Q18

Other congenital malformations of face and neck

ICD-10-CA · Canada

Codes in Q18

Q18 isn’t a code on its own. Open the code that matches what the note documents.

Q18.0Sinus, fistula and cyst of branchial cleftQ18.1Preauricular sinus and cystQ18.2Other branchial cleft malformationsQ18.3Webbing of neckQ18.4MacrostomiaQ18.5MicrostomiaQ18.6MacrocheiliaQ18.7MicrocheiliaQ18.8Other specified congenital malformations of face and neckQ18.9Congenital malformation of face and neck, unspecified

Notes for Q18

As CIHI prints them, with any note Q18 takes from the headings above it.

Excludes

Conditions classified elsewhere.

  • Cleft lip and cleft palate (Q35-Q37)conditions classified to Q67.0-Q67.4congenital malformations of skull and face bones (Q75.-)cyclopia (Q87.0)dentofacial anomalies [including malocclusion] (K07.-)malformation syndromes affecting facial appearance (Q87.0)persistent thyroglossal duct (Q89.2)
  • Cleft lip and cleft palate (Q35-Q37)congenital malformation of:• cervical spine (Q05.0,Q05.5,Q67.5,Q76.0-Q76.4)• larynx (Q31.-)• lip NEC (Q38.0)• nose (Q30.-)• parathyroid gland (Q89.2)• thyroid gland (Q89.2)From Q10-Q18 Congenital malformations of eye, ear, face and neck
  • Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

Where Q18 sits

  1. 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. 2Block Q10-Q18Congenital malformations of eye, ear, face and neck
  3. 3Category Q18Other congenital malformations of face and neck

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See Q18 in the CIHI source

Frequently asked questions

Is Q18 a valid ICD-10-CA code?

No. Q18 (Other congenital malformations of face and neck) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 10 codes; record the one the documentation supports.

Where is Q18 in ICD-10-CA?

Q18 sits under Q10-Q18 Congenital malformations of eye, ear, face and neck, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).

What coding notes apply to Q18?

ICD-10-CA lists Excludes notes for Q18, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside Q18

Q10Congenital malformations of eyelid, lacrimal apparatus and orbitQ11Anophthalmos, microphthalmos and macrophthalmosQ12Congenital lens malformationsQ13Congenital malformations of anterior segment of eyeQ14Congenital malformations of posterior segment of eyeQ15Other congenital malformations of eyeQ16Congenital malformations of ear causing impairment of hearingQ17Other congenital malformations of ear