ICD-10 Code H01.029 – Squamous blepharitis unspecified eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H01.029 – Squamous blepharitis unspecified eye, unspecified eyelid
What it is
H01.029 identifies squamous blepharitis affecting an unspecified eye and eyelid. It is used when the eyelid margin has chronic inflammation with scaling, but the chart does not specify laterality.
Clinical signs
Typical findings include eyelid margin redness, irritation, and flaky or scaly debris at the lashes. Clinical features vary; refer to documentation if the note does not clearly describe the eye or eyelid involved.
When to use this code
Use this code when the provider documents squamous blepharitis and does not identify the right or left eye or a specific eyelid. It also fits cases where the record confirms blepharitis with squamous changes, but laterality is omitted. Check documentation before assigning a more specific code.
Do not use for
Do not use it when the note specifies another blepharitis type, such as ulcerative or meibomian gland disease. Do not use it if the eye or eyelid laterality is documented and a more specific code is available.
Coding tip
If laterality is missing, code the unspecified option only after reviewing the full ophthalmology note.