ICD-10 Code H04.01 – Acute dacryoadenitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.01 – Acute dacryoadenitis
What it is
Acute dacryoadenitis is sudden inflammation of the lacrimal gland, which helps produce tears. It is usually coded when the condition is documented as acute and affects the tear gland area.
Clinical signs
Typical findings include painful swelling in the upper outer eyelid, redness, and tenderness. Clinical features vary; refer to documentation for laterality, severity, and any associated infection or systemic cause.
When to use this code
Use H04.01 when the provider documents acute inflammation of the lacrimal gland or acute dacryoadenitis. Apply it for encounters focused on diagnosis, evaluation, or follow-up of this specific condition. Check documentation if the record does not clearly distinguish acute from chronic disease.
Do not use for
Do not use this code for chronic dacryoadenitis or nonspecific eyelid swelling without lacrimal gland involvement. If the note describes another orbital, eyelid, or tear-duct disorder, code the documented condition instead.
Coding tip
Confirm that the provider names the lacrimal gland and the acute nature of the condition before assigning H04.01.