MCMedicalCodingSoftware
Q12

Q12: Congenital lens malformations

Non-billable headerICD-10-CM

Q12 is a non-billable header ICD-10-CM code for congenital lens malformations. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with Q12

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • H26Other cataract
  • H27Other disorders of lens
  • H27.0Aphakia

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Q12

7 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.