ICD-10 Code H59.40 – Inflammation (infection) of postprocedural bleb, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H59.40 – Inflammation (infection) of postprocedural bleb, unspecified
What it is
H59.40 identifies inflammation or infection involving a postprocedural bleb after eye surgery. Use it when the record names a bleb complication but does not specify laterality or a more detailed subtype.
Clinical signs
Typical findings include conjunctival redness, ocular discomfort, discharge, or signs of bleb inflammation on examination. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents an infected or inflamed postprocedural bleb and no more specific code is available. It fits postoperative ophthalmic follow-up notes, complication assessments, or referrals that clearly identify the bleb problem. Check documentation if the note only mentions generic postoperative irritation.
Do not use for
Do not use it for non-bleb eye infections, routine postoperative healing, or unspecified conjunctivitis. If the chart describes a different postoperative complication, choose the code that matches the documented condition.
Coding tip
Confirm the documentation says bleb inflammation or infection, not just “post-op eye pain,” before assigning H59.40.