ICD-10 Code H02.236 – Paralytic lagophthalmos left eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.236 – Paralytic lagophthalmos left eye, unspecified eyelid
What it is
This code identifies inability to fully close the left eyelid because of facial nerve or eyelid muscle paralysis, with the eyelid side not further specified. It describes an exposure risk to the eye from incomplete lid closure.
Clinical signs
Typical findings include incomplete eyelid closure on the left, especially during blinking or sleep, and visible scleral exposure. Clinical features vary; refer to documentation.
When to use this code
Use H02.236 when the record states paralytic lagophthalmos affecting the left eye and does not identify the upper or lower eyelid. It fits documentation of facial palsy, nerve injury, or other paralysis causing incomplete closure. Check documentation if the cause or eyelid is described differently.
Do not use for
Do not use this code for mechanical lid closure problems, eyelid droop without paralysis, or right-eye involvement. If the chart specifies a different eyelid or an unspecified eye, code the documented condition instead.
Coding tip
Match the laterality and eyelid wording exactly; if the note only says “lagophthalmos” without paralysis, check documentation before assigning H02.236.