ICD-10 Code H10.019 – Acute follicular conjunctivitis, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.019 – Acute follicular conjunctivitis, unspecified eye
What it is
H10.019 identifies acute follicular conjunctivitis affecting an unspecified eye. It describes inflammation of the conjunctiva with follicle formation, but the record does not specify right or left eye.
Clinical signs
Typical findings include conjunctival redness, irritation, tearing, and small follicular bumps on the conjunctiva. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents acute follicular conjunctivitis and does not identify which eye is involved. It also fits when the note confirms follicular conjunctival inflammation but laterality is unclear or omitted. Check documentation if another conjunctival diagnosis is stated.
Do not use for
Do not use H10.019 if the chart specifies right or left eye, or if the condition is a different type of conjunctivitis. Do not apply it when the documentation supports a non-conjunctival eye disorder.
Coding tip
Confirm laterality before assigning H10.019, because unspecified eye should be used only when the record truly does not identify the affected eye.