ICD-10 Code H04.002 – Unspecified dacryoadenitis, left lacrimal gland (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.002 – Unspecified dacryoadenitis, left lacrimal gland
What it is
This code identifies inflammation of the left lacrimal gland when the cause is not specified. Use it for a documented left-sided dacryoadenitis without a clearer diagnosis.
Clinical signs
Typical findings include swelling or tenderness in the outer upper eyelid, sometimes with redness or a palpable mass. Clinical features vary; refer to documentation.
When to use this code
Use H04.002 when the record states dacryoadenitis of the left lacrimal gland and does not identify a specific cause or type. It also fits when the provider documents inflammation of that gland but leaves the etiology unspecified.
Choose this code only if laterality is clearly left. If the note describes bilateral disease, a different code may apply; check documentation.
Do not use for
Do not use this code for right-sided or bilateral lacrimal gland inflammation. Do not use it when the chart specifies a different diagnosis, such as a defined infection or tumor.
Coding tip
Confirm both laterality and the word “unspecified” in the provider note before assigning H04.002.