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ICD-10-CM 2027 diagnosis code

H17.8Other corneal scars and opacities

Not billable — use a more specific code

H17.8 is a header code, so it can't be reported by itself. Choose one of the 3 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 H17.8

H17.8 is the ICD-10-CM diagnosis code for other corneal scars and opacities. It belongs to category H17 (corneal scars and opacities), block H15-H22 (disorders of sclera, cornea, iris and ciliary body) 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 3 subcodes must be used instead.

Within H17, choose H17.8 (Other corneal scars and opacities) only when documentation doesn't support a more specific option: adherent leukoma (H17.0), central corneal opacity (H17.1) and unspecified corneal scar and opacity (H17.9).

To report this condition, pick the subcode that matches the documentation: H17.81 (cornea), H17.82 (cornea) and H17.89 (opacities).

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 H17.8

Notes that apply from higher levels

Instructions written at a parent level also apply to H17.8.

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

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 H17.8

Is H17.8 billable?

No. H17.8 is a header code. Report one of its more specific subcodes instead.