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ICD-10-CM 2027 diagnosis code

H26.21Cataract with neovascularization

Not billable — use a more specific code

H26.21 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 H26.21

H26.21 is the ICD-10-CM diagnosis code for cataract with neovascularization. It belongs to category H26 (other cataract), block H25-H28 (disorders of lens) 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 H26.2 (complicated cataract), H26.21 is specifically for cataract with neovascularization. Related codes cover unspecified complicated cataract (H26.20), cataract secondary to ocular disorders (degenerative) (inflammatory) (H26.22) and glaucomatous flecks (subcapsular) (H26.23).

To report this condition, pick the subcode that matches the documentation: H26.211 (right eye), H26.212 (left eye), H26.213 (bilateral) and H26.219 (unspecified eye).

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 H26.21

Coding notes

Code alsoTwo codes may be needed; sequencing depends on circumstances
  • , if applicable, associated condition, such as:
  • chronic iridocyclitis (H20.1-)

Notes that apply from higher levels

Instructions written at a parent level also apply to H26.21.

› From H26 Other cataract
Excludes1
  • congenital cataract (Q12.0)

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 H26.21.

Codes whose notes reference H26.21

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 H26.21

Is H26.21 billable?

No. H26.21 is a header code. Report one of its more specific subcodes instead.