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Q13

Q13: Congenital malformations of anterior segment of eye

Non-billable headerICD-10-CM

Q13 is a non-billable header ICD-10-CM code for congenital malformations of anterior segment of eye. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with Q13

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

  • H18.7Other and unspecified corneal deformities
  • H21.4Pupillary membranes
  • H21.5Other and unspecified adhesions and disruptions of iris and ciliary body
  • H21.56Pupillary abnormalities

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 Q13

8 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.