ICD-10 Code H02.866 – Hypertrichosis of left eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.866 – Hypertrichosis of left eye, unspecified eyelid
What it is
H02.866 identifies excessive hair growth affecting the left eye area, with the eyelid not further specified. Use it when documentation states hypertrichosis on the left side and does not name upper or lower eyelid.
Clinical signs
Typical documentation may note visibly increased or abnormal hair growth on the eyelid margin or surrounding lid skin. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents hypertrichosis of the left eye region and does not specify which eyelid is involved. It is also appropriate when the record clearly identifies the left eyelid area but leaves laterality details limited to the left eye designation. Check documentation if another eyelid disorder is also present.
Do not use for
Do not use this code for generalized excess hair growth elsewhere on the body or for eyelash disorders without eyelid involvement. If the record specifies a different eyelid or a different left-eye condition, choose the more accurate code.
Coding tip
Confirm whether the note says left eye, left eyelid, or a more specific eyelid location before assigning H02.866.