ICD-10 Code H04.012 – Acute dacryoadenitis, left lacrimal gland (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.012 – Acute dacryoadenitis, left lacrimal gland
What it is
H04.012 identifies acute inflammation of the left lacrimal gland. Use it when documentation specifies the left side and the condition is acute, not chronic.
Clinical signs
Typical findings include sudden swelling and tenderness in the upper outer eyelid area, sometimes with redness or discomfort. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents acute dacryoadenitis affecting the left lacrimal gland. It is appropriate for office, emergency, or specialist notes that clearly identify laterality and acuity. If the record only says dacryoadenitis, check documentation for side and whether the episode is acute.
Do not use for
Do not use H04.012 for chronic dacryoadenitis or for inflammation of the right or unspecified lacrimal gland. Check documentation if the record describes a different tear gland disorder.
Coding tip
Verify both acuity and laterality in the assessment before assigning H04.012.