What does ICD-10 code Q11 mean?

ICD-10 code Q11 is the standardized code used for anophthalmos, microphthalmos and macrophthalmos in medical records and coding systems.

When is ICD-10 code Q11 used?

Doctors, hospitals, and insurers may use ICD-10 code Q11 when recording anophthalmos, microphthalmos and macrophthalmos in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code Q11 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code Q11: Anophthalmos, microphthalmos and macrophthalmos

Name: ICD-10 Code Q11: Anophthalmos, microphthalmos and macrophthalmos
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:29:26.926Z

Q11 is an ICD-10 diagnosis entry used to group records related to Anophthalmos, microphthalmos and macrophthalmos. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

When is it used?

May be used when a clinician documents anophthalmos, microphthalmos and macrophthalmos in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

17Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)

block

Q10-Q18Congenital malformations of eye, ear, face and neck

currentQ10-Q18

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Sibling codes

Q10Congenital malformations of eyelid, lacrimal apparatus and orbit Q12Congenital lens malformations Q13Congenital malformations of anterior segment of eye Q14Congenital malformations of posterior segment of eye Q15Other congenital malformations of eye Q16Congenital malformations of ear causing impairment of hearing Q17Other congenital malformations of ear Q18Other congenital malformations of face and neck

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

Q11

Replacement codes

Q11.0 — Cystic eyeballQ11.1 — Other anophthalmosQ11.2 — MicrophthalmosQ11.3 — Macrophthalmos

Common synonyms

Anophthalmos, microphthalmos and macrophthalmos

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.