2026 ICD-10-CM Diagnosis Code Q11Anophthalmos, microphthalmos and macrophthalmos

ICD-10-CM Codes›Q00-Q99›Q10-Q18›Q11

ICD-10-CM Q11
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q11 is a non-billable ICD-10-CM category code for anophthalmos, microphthalmos and macrophthalmos, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Q11.0, Q11.1, Q11.2, and Q11.3.

Code Identity

ICD-10-CM Code
Q11
Billable Status
No — Non-Billable Category
Code Describes
Anophthalmos, microphthalmos and macrophthalmos
Chapter
Q10-Q18
Congenital malformations of eye, ear, face and neck

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ10-Q18Congenital malformations of eye, ear, face and neck
CategoryQ11Anophthalmos, microphthalmos and macrophthalmos
This CodeQ11Anophthalmos, microphthalmos and macrophthalmos

Specific Coding for Anophthalmos, microphthalmos and macrophthalmosOverview

Non-specific codes like Q11 require more characters. Use one of these billable codes instead:

  • Use Q11.0 for Cystic eyeball

  • Use Q11.1 for Other anophthalmos

  • Use Q11.2 for Microphthalmos

  • Use Q11.3 for Macrophthalmos

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Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q11Overview

Is Q11 (Anophthalmos, microphthalmos and macrophthalmos) a billable code?

No. This is a category header that groups the codes for anophthalmos, microphthalmos and macrophthalmos, and headers cannot be submitted on claims. Claims for anophthalmos, microphthalmos and macrophthalmos need a more specific code from this category, such as Q11.0, Q11.1, and Q11.2.