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ICD-10-CM 2027 diagnosis code

H59Intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified

Not billable — use a more specific code

H59 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.Short description: Intraop and postproc comp and disord of eye and adnexa, NEC

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

H59 is the ICD-10-CM diagnosis code for intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified. It belongs to 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 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: H59.0 (surgery), H59.1 (procedure), H59.2 (procedure), H59.3 (procedure), H59.4 (bleb) and H59.8 (classified).

Don't report H59 together with the conditions in its Excludes1 note: mechanical complication of intraocular lens (T85.2), mechanical complication of other ocular prosthetic devices, implants and grafts (T85.3), pseudophakia (Z96.1) and secondary cataracts (H26.4-).

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

Coding notes

Excludes1Not coded here — never report together with this code
  • mechanical complication of intraocular lens (T85.2)
  • mechanical complication of other ocular prosthetic devices, implants and grafts (T85.3)
  • pseudophakia (Z96.1)
  • secondary cataracts (H26.4-)

Notes that apply from higher levels

Instructions written at a parent level also apply to H59.

Broader instructions also apply from Chapter 7: Diseases of the eye and adnexa.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to H59.

Codes whose notes reference H59

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about H59

Is H59 billable?

No. H59 is a header code. Report one of its more specific subcodes instead.