ICD-10 Code H01.006 – Unspecified blepharitis left eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H01.006 – Unspecified blepharitis left eye, unspecified eyelid
What it is
This code identifies blepharitis affecting the left eye when the eyelid is not further specified. Use it when documentation confirms blepharitis but does not name the upper or lower lid.
Clinical signs
Common findings include eyelid redness, irritation, crusting, itching, or a gritty sensation. Clinical features vary; refer to documentation, especially when the record does not specify the exact eyelid involved.
When to use this code
Use H01.006 when the provider documents blepharitis of the left eye and leaves the eyelid location unspecified. It also fits when the note says “left blepharitis” without identifying upper or lower lid. Check documentation if laterality or eyelid detail is unclear.
Do not use for
Do not use this code if the record identifies the upper or lower left eyelid, because a more specific code applies. Do not assign it for noninfectious eyelid conditions without blepharitis documented.
Coding tip
If the note is vague, code only what is explicitly documented and query for eyelid specificity when needed.