ICD-10-CM 2027 diagnosis code
H59.4Inflammation (infection) of postprocedural bleb
H59.4 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About H59.4
H59.4 is the ICD-10-CM diagnosis code for inflammation (infection) of postprocedural bleb. It belongs to category H59 (intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified), block H59 (intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.
Within H59 (intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified), H59.4 is specifically for inflammation (infection) of postprocedural bleb. Related codes cover disorders of the eye following cataract surgery (H59.0), intraoperative hemorrhage and hematoma of eye and adnexa complicating a procedure (H59.1), accidental puncture and laceration of eye and adnexa during a procedure (H59.2), postprocedural hemorrhage, hematoma, and seroma of eye and adnexa following a procedure (H59.3) and other intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified (H59.8).
To report this condition, pick the subcode that matches the documentation: H59.40 (unspecified), H59.41 (stage 1), H59.42 (stage 2) and H59.43 (stage 3).
Don't report H59.4 together with the conditions in its Excludes1 note: filtering (vitreous) bleb after glaucoma surgery status (Z98.83).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under H59.4
Coding notes
- Postprocedural blebitis
- filtering (vitreous) bleb after glaucoma surgery status (Z98.83)
Notes that apply from higher levels
Instructions written at a parent level also apply to H59.4.
Broader instructions also apply from Chapter 7: Diseases of the eye and adnexa.
Codes whose notes reference H59.4
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about H59.4
Is H59.4 billable?
- No. H59.4 is a header code. Report one of its more specific subcodes instead.