ICD-10 Code H02.20B – Unspecified lagophthalmos left eye, upper and lower eyelids (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.20B – Unspecified lagophthalmos left eye, upper and lower eyelids
What it is
This code identifies lagophthalmos affecting the left eye when both the upper and lower eyelids are involved and the cause is not further specified. It means the eyelids do not close completely, leaving the eye exposed.
Clinical signs
Common findings include incomplete eyelid closure, visible scleral exposure, and possible dryness or irritation of the eye surface. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record documents lagophthalmos of the left eye and specifies involvement of both upper and lower eyelids, but does not give a more specific cause. It is appropriate when the provider notes incomplete closure without another coded eyelid disorder explaining the finding. Check documentation if laterality or eyelid involvement is unclear.
Do not use for
Do not use this code if lagophthalmos is documented for the right eye, both eyes, or a different eyelid pattern. Also avoid it when the chart identifies a more specific underlying condition that should be coded instead.
Coding tip
Confirm laterality and whether the upper, lower, or both eyelids are affected before assigning H02.20B.