ICD-10 Code H01.026 – Squamous blepharitis left eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H01.026 – Squamous blepharitis left eye, unspecified eyelid
What it is
This code identifies squamous blepharitis affecting the left eye when the eyelid is not further specified. It refers to inflammation of the eyelid margins with scaling or crusting.
Clinical signs
Typical findings include eyelid margin redness, irritation, itching, burning, and flaky or scaly debris at the lash line. Clinical features vary; refer to documentation.
When to use this code
Use H01.026 when the provider documents squamous blepharitis limited to the left eye and does not name upper or lower eyelid. It also fits when the record clearly supports blepharitis of the left side but eyelid laterality is otherwise unspecified.
Do not use for
Do not use this code if the documentation identifies the right eye, both eyes, or a specific eyelid. Check documentation when the note describes a different type of blepharitis or a separate eyelid disorder.
Coding tip
Confirm both laterality and eyelid specificity in the note before assigning H01.026.