Q13
Congenital malformations of anterior segment of eye
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 7 never code together
Q10-Q18block
Excludes2
- cleft lip and cleft palate (Q35-Q37)Q35-Q37
- congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)Q05.0Q05.5Q67.5Q76.0-Q76.4
- congenital malformation of larynx (Q31.-)Q31.-
- congenital malformation of lip NEC (Q38.0)Q38.0
- congenital malformation of nose (Q30.-)Q30.-
- congenital malformation of parathyroid gland (Q89.2)Q89.2
- congenital malformation of thyroid gland (Q89.2)Q89.2
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes
No further instructional notes apply.
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 8
Q13.0 Coloboma of iris Q13.1 Absence of iris Q13.2 Other congenital malformations of iris Q13.3 Congenital corneal opacity Q13.4 Other congenital corneal malformations Q13.5 Blue sclera Q13.8 Other congenital malformations of anterior segment of eye Q13.9 Congenital malformation of anterior segment of eye, unsp
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.