Q11Header code — not billable

Anophthalmos, microphthalmos and macrophthalmos

Chapter
17. Congenital malformations, deformations and chromosomal abnormalities
Category
Q11
Effective date
October 1, 2026

Related codes in category Q11

Q11.0Cystic eyeballYesQ11.1Other anophthalmosYesQ11.2MicrophthalmosYesQ11.3MacrophthalmosYes

Frequently asked questions

What is ICD-10 code Q11?

Q11 is an ICD-10-CM diagnosis code for Anophthalmos, microphthalmos and macrophthalmos.

Is Q11 a billable code?

No. Q11 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is Q11 in?

Q11 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.

When did Q11 become effective?

Q11 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Q11?

Q11 belongs to category Q11, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.