ICD-10 Code H04.309 – Unspecified dacryocystitis of unspecified lacrimal passage (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.309 – Unspecified dacryocystitis of unspecified lacrimal passage
What it is
This code identifies inflammation or infection of the lacrimal sac or tear drainage system when the exact lacrimal passage is not specified. Use it when the record says dacryocystitis but does not document a more precise site.
Clinical signs
Typical findings include tearing, tenderness, swelling, or redness near the inner corner of the eye. Clinical features vary; refer to documentation if the note does not clearly describe the affected lacrimal passage.
When to use this code
Use H04.309 when the provider documents dacryocystitis without naming the side or a specific lacrimal passage. It also fits when the chart confirms inflammation of the tear sac system but lacks enough detail for a more specific code.
If laterality or a more exact site is documented, code to the most specific option available. Check documentation before assigning this unspecified code.
Do not use for
Do not use this code for tearing, blocked tear ducts, or other lacrimal disorders without dacryocystitis. Avoid it when the record clearly identifies a different lacrimal passage or a more specific diagnosis.
Coding tip
Query the provider if the note mentions dacryocystitis but omits laterality or the exact lacrimal passage.