Q12.9 – Congenital lens malformation, unspecified

ICD-10-CM 2027 diagnosis code · Congenital malformations of eye, ear, face and neck

Billable code

ICD-10-CM code Q12.9

Code: Q12.9 (claims format: Q129)
Description: Congenital lens malformation, unspecified
Billable: Yes – valid for HIPAA-covered transactions
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
Parent codes: Q12

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)

Index terms for Q12.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in Q12

Q12.0 – Congenital cataractBillable
Q12.1 – Congenital displaced lensBillable
Q12.2 – Coloboma of lensBillable
Q12.3 – Congenital aphakiaBillable
Q12.4 – SpherophakiaBillable
Q12.8 – Other congenital lens malformationsBillable

Frequently asked questions

What is ICD-10 code Q12.9?

Q12.9 is the ICD-10-CM code for congenital lens malformation, unspecified, in the block Q10-Q18 (Congenital malformations of eye, ear, face and neck).

Is Q12.9 a billable code?

Yes. Q12.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Q12.9 belong to?

It belongs to category Q12 – Congenital lens malformations.

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.