ICD-10 Code H02.21A – Cicatricial lagophthalmos right eye, upper and lower eyelids (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.21A – Cicatricial lagophthalmos right eye, upper and lower eyelids
What it is
This code identifies scar-related inability to close the right eye because both the upper and lower eyelids are involved. It reflects cicatricial tightening of the eyelids, not a temporary closure problem.
Clinical signs
Look for incomplete eyelid closure on the right side with visible scarring, contracture, or shortening of the lids. Clinical features vary; refer to documentation.
When to use this code
Use H02.21A when the record clearly states cicatricial lagophthalmos affecting the right eye and both eyelids. It fits post-traumatic, post-surgical, or burn-related scarring when the provider documents this specific laterality and eyelid involvement. Check documentation if the note only says lagophthalmos without cause or side.
Do not use for
Do not use this code for lagophthalmos from paralysis, spasm, or nonscarring causes. If the chart does not specify right eye with upper and lower eyelids, check documentation.
Coding tip
Verify both laterality and cicatricial cause in the provider note before assigning H02.21A.