Q11 – Anophthalmos, microphthalmos and macrophthalmos
ICD-10-CM 2027 diagnosis code · Congenital malformations of eye, ear, face and neck
ICD-10-CM code
Q11
- Code
Q11(claims format:Q11)- Description
- Anophthalmos, microphthalmos and macrophthalmos
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q10-Q18 Congenital malformations of eye, ear, face and neck
Billable codes under Q11
Q11 is a header code and cannot be used on claims. Choose the most specific code:
- Q11.0 – Cystic eyeballBillable
- Q11.1 – Other anophthalmosBillable
- Q11.2 – MicrophthalmosBillable
- Q11.3 – MacrophthalmosBillable
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block Q10-Q18
Excludes2 (not included here):
- cleft lip and cleft palate (Q35-Q37)
- congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)
- congenital malformation of larynx (Q31.-)
- congenital malformation of lip NEC (Q38.0)
- congenital malformation of nose (Q30.-)
- congenital malformation of parathyroid gland (Q89.2)
- congenital malformation of thyroid gland (Q89.2)
Frequently asked questions
What is ICD-10 code Q11?
Q11 is the ICD-10-CM code for anophthalmos, microphthalmos and macrophthalmos, in the block Q10-Q18 (Congenital malformations of eye, ear, face and neck).
Is Q11 a billable code?
No. Q11 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.