ICD-10 Code H59.4 – Inflammation (infection) of postprocedural bleb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H59.4 – Inflammation (infection) of postprocedural bleb
What it is
Use this code for inflammation or infection involving a postprocedural bleb, usually after eye surgery. It identifies a complication affecting the bleb rather than the original eye condition.
Clinical signs
Findings may include a red, tender, or swollen bleb, with ocular irritation or reduced visual comfort. Clinical features vary; refer to documentation.
When to use this code
Assign H59.4 when the provider documents inflammation or infection of a bleb created by a prior procedure. Use it for postoperative complications clearly linked to the bleb, not for routine healing or unrelated ocular inflammation. Check documentation if the record does not specify infection versus inflammation.
Do not use for
Do not use this code for general postoperative eye pain, conjunctivitis, or inflammation that is not documented as involving the bleb. Check documentation.
Coding tip
Code the complication only when the chart explicitly links the problem to the postprocedural bleb.