ICD-10 Code H00.15 – Chalazion left lower eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H00.15 – Chalazion left lower eyelid
What it is
H00.15 identifies a chalazion on the left lower eyelid. It is a localized, usually noninfectious eyelid lump caused by blockage and inflammation of a meibomian gland.
Clinical signs
Typical findings include a firm, round eyelid nodule and mild swelling. Pain is often minimal or absent; if redness, tenderness, or drainage is present, check documentation for another diagnosis.
When to use this code
Use H00.15 when the provider documents a chalazion specifically on the left lower eyelid. Code it for office visits, follow-up care, or evaluation of a persistent eyelid lump when laterality and lid are clearly stated.
If the note only says “chalazion” or does not specify the left lower eyelid, query or review the record before assigning this code. Accurate laterality matters for correct ICD-10-CM selection.
Do not use for
Do not use this code for stye, blepharitis, or unspecified eyelid swelling. If the lesion is on a different eyelid or the side is not documented, check documentation.
Coding tip
Confirm both laterality and eyelid location; H00.15 is only correct when the left lower eyelid is explicitly documented.