ICD-10 Code H04.313 – Phlegmonous dacryocystitis of bilateral lacrimal passages (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.313 – Phlegmonous dacryocystitis of bilateral lacrimal passages
What it is
H04.313 identifies a phlegmonous infection of both lacrimal passages, usually involving the tear drainage system near the nasolacrimal sac. Use it when documentation clearly states bilateral phlegmonous dacryocystitis.
Clinical signs
Typical findings include painful swelling, redness, and tenderness over the tear sac area, with possible discharge from the puncta. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents phlegmonous dacryocystitis affecting both sides, or equivalent bilateral lacrimal passage infection wording. It is appropriate when the record specifies the condition as bilateral rather than unilateral or unspecified. Check documentation if laterality is unclear.
Do not use for
Do not use this code for uncomplicated dacryocystitis, other lacrimal disorders, or infections limited to one side. If the note does not confirm bilateral involvement, check documentation.
Coding tip
Confirm both the inflammatory diagnosis and bilateral laterality in the provider note before assigning H04.313.