ICD-10 Code H00.022 – Hordeolum internum right lower eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H00.022 – Hordeolum internum right lower eyelid
What it is
H00.022 identifies an internal stye in the right lower eyelid. It means an infection or inflammation of a meibomian gland within that eyelid.
Clinical signs
Typical findings include a tender, swollen area on the inner lower lid, sometimes with redness and localized pain. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states a hordeolum internum of the right lower eyelid. It fits outpatient, emergency, or specialty notes describing a right-sided internal stye. If the documentation only says “stye” or does not specify location, check documentation before assigning this code.
Do not use for
Do not use it for chalazion, external hordeolum, or eyelid swelling without a documented internal stye. If the side or eyelid is not specified, check documentation.
Coding tip
Confirm both laterality and that the lesion is internal before coding H00.022.