ICD-10 Code H02.821 – Cysts of right upper eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.821 – Cysts of right upper eyelid
What it is
H02.821 identifies a cyst located on the right upper eyelid. Use it when the documentation specifies a benign cystic lesion in that exact eyelid location.
Clinical signs
Findings may include a visible or palpable eyelid lump, localized swelling, or mild tenderness. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a cyst of the right upper eyelid, such as a chalazion-like or other cystic lesion recorded in that site. It applies when the diagnosis is clearly limited to the right upper eyelid and not another eyelid or periocular area.
Do not use for
Do not use it for left eyelid, bilateral eyelid, or unspecified eyelid cysts. Do not use it if the note describes another eyelid disorder or a lesion elsewhere; check documentation.
Coding tip
Confirm laterality and eyelid location in the assessment before assigning H02.821.