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Q12 ICD-10-CA category: Congenital lens malformations

Q12 isn’t a code on its own. Choose one of the 7 codes beneath it, the one the documentation supports.

Official description

Q12

Congenital lens malformations

ICD-10-CA · Canada

Codes in Q12

Q12 isn’t a code on its own. Open the code that matches what the note documents.

Q12.0Congenital cataractQ12.1Congenital displaced lensQ12.2Coloboma of lensQ12.3Congenital aphakiaQ12.4SpherophakiaQ12.8Other congenital lens malformationsQ12.9Congenital lens malformation, unspecified

Notes for Q12

As CIHI prints them, with any note Q12 takes from the headings above it.

Excludes

Conditions classified elsewhere.

  • 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 Q12 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 Q12Congenital lens malformations

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 Q12 in the CIHI source

Frequently asked questions

Is Q12 a valid ICD-10-CA code?

No. Q12 (Congenital lens malformations) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 7 codes; record the one the documentation supports.

Where is Q12 in ICD-10-CA?

Q12 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 Q12?

ICD-10-CA lists Excludes notes for Q12, 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 Q12

Q10Congenital malformations of eyelid, lacrimal apparatus and orbitQ11Anophthalmos, microphthalmos and macrophthalmosQ13Congenital 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 earQ18Other congenital malformations of face and neck