ICD-10 Code H01.00 – Unspecified blepharitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H01.00 – Unspecified blepharitis
What it is
Unspecified blepharitis is inflammation of the eyelid margins when the record does not identify the type or cause. Use this code when documentation confirms blepharitis but gives no further detail.
Clinical signs
Common findings include eyelid redness, irritation, crusting, and a gritty or burning sensation. Clinical features vary; refer to documentation.
When to use this code
Use H01.00 when the clinician documents blepharitis without specifying anterior, posterior, meibomian, or another subtype. It also fits when the note describes eyelid-margin inflammation but does not support a more specific code. Check documentation for laterality or associated conditions if present.
Do not use for
Do not use this code when the record clearly identifies a specific blepharitis type or another eyelid disorder. Also avoid it if the documented problem is primarily conjunctivitis, hordeolum, or a different eye condition.
Coding tip
If the subtype is missing, code the unspecified diagnosis rather than assuming a more detailed form.