Congenital malformations of eye, ear, face and neck (Q10-Q18) ICD-10-CM
The Q10–Q18 section covers congenital malformations of eye, ear, face and neck with 72 ICD-10-CM diagnosis codes, of which 62 are billable in fiscal year 2026. The section is organized into the 9 code ranges listed below.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- 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
Code Ranges in This Section 9 ranges · 72 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the Q10–Q18 Code Range
ICD-10 codes Q10-Q18 classify various congenital malformations affecting the eye, ear, face, and neck. These codes are specifically used to document a wide range of birth defects involving eyelids, lacrimal apparatus, orbits, ocular segments, ears, and facial structures.
This chapter covers detailed congenital conditions such as Q10 for eyelid and lacrimal anomalies including congenital ptosis and ectropion. Codes from Q11 address eye size abnormalities like anophthalmos (absence of eye) and microphthalmos (small eye). Lens malformations like congenital cataract and displaced lens fall under Q12. The anterior segment of eye defects, such as coloboma of iris and aniridia, are classified in Q13, while Q14 covers malformations of the posterior eye segment including retina and optic disc anomalies. Congenital glaucoma is included in Q15.0. Ear malformations that impair hearing, such as absence of auricle or malformation of ossicles, are found in Q16. Other ear malformations like accessory auricle and microtia are classified in Q17. Finally, Q18 includes congenital malformations of the face and neck such as branchial cleft cysts and webbing of the neck. These codes ensure precise recording of diverse congenital structural anomalies critical for clinical care and epidemiological tracking.
Questions About This Page
How many codes are in the Q10-Q18 range?
The Q10-Q18 range contains 72 ICD-10-CM diagnosis codes in FY 2026. 62 of them are billable, and the rest are category headers that organize the section.
What conditions does Q10-Q18 cover?
The range covers congenital malformations of eye, ear, face and neck. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
