ICD-10 Code H10.211 – Acute toxic conjunctivitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.211 – Acute toxic conjunctivitis, right eye
What it is
This code identifies an acute inflammation of the right conjunctiva caused by exposure to a toxic or irritant substance. Use it when the record specifies the right eye and a toxic cause.
Clinical signs
Typical findings include red eye, irritation, tearing, burning, and conjunctival swelling after exposure. Clinical features vary; refer to documentation.
When to use this code
Use H10.211 when the clinician documents acute toxic conjunctivitis limited to the right eye, such as after chemical or irritant exposure. Confirm laterality and that the condition is acute and toxic rather than allergic, infectious, or unspecified. If the note only says “conjunctivitis” or does not identify the cause, check documentation.
Do not use for
Do not use this code for left eye, bilateral, or unspecified conjunctivitis. It also should not be used when the diagnosis is allergic, viral, bacterial, or otherwise non-toxic.
Coding tip
Always verify both laterality and the toxic exposure in the provider note before assigning H10.211.