ICD-10 Code H00.035 – Abscess of left lower eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H00.035 – Abscess of left lower eyelid
What it is
H00.035 identifies a localized collection of pus in the left lower eyelid. Use it when documentation specifically states an abscess affecting that eyelid.
Clinical signs
Typical findings include eyelid swelling, redness, tenderness, and a focal painful lump. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents an abscess of the left lower eyelid, with or without drainage or antibiotic treatment. It also fits when the note clearly distinguishes the left lower eyelid from other eyelid sites. Check documentation if the record only says eyelid infection or swelling.
Do not use for
Do not use H00.035 for a stye, chalazion, or a nonspecific eyelid lesion unless an abscess is documented. Do not assign it if the side or eyelid location is not confirmed.
Coding tip
Verify both laterality and eyelid location in the note before assigning H00.035.