ICD-10 Code H10.432 – Chronic follicular conjunctivitis, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.432 – Chronic follicular conjunctivitis, left eye
What it is
H10.432 identifies chronic follicular conjunctivitis affecting the left eye. Use it when documentation specifies a persistent conjunctival inflammation with follicle formation on the left side.
Clinical signs
Typical findings include chronic redness, irritation, tearing, and follicular response on the conjunctiva. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents chronic follicular conjunctivitis limited to the left eye. It also fits follow-up notes that clearly confirm the same diagnosis without changing laterality. If the record does not specify chronicity or laterality, check documentation.
Do not use for
Do not use it for conjunctivitis that is acute, unspecified, or affects both eyes. Avoid this code when the note describes another conjunctival disorder or when left-eye involvement is not documented.
Coding tip
Verify both chronicity and left-eye laterality in the chart before assigning H10.432.