H16.4 - Corneal neovascularization

Version 2022
ICD-10:H16.4
Short Description:Corneal neovascularization
Long Description:Corneal neovascularization
Status: Not Valid for Submission
Version:ICD-10-CM 2022
Code Classification:
  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of sclera, cornea, iris and ciliary body (H15-H22)
      • Keratitis (H16)

H16.4 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of corneal neovascularization. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Clinical Information

Specific Coding for Corneal neovascularization

Non-specific codes like H16.4 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for corneal neovascularization:

  • NON-BILLABLE CODE - H16.40 for Unspecified corneal neovascularization
  • BILLABLE CODE - Use H16.401 for Unspecified corneal neovascularization, right eye
  • BILLABLE CODE - Use H16.402 for Unspecified corneal neovascularization, left eye
  • BILLABLE CODE - Use H16.403 for Unspecified corneal neovascularization, bilateral
  • BILLABLE CODE - Use H16.409 for Unspecified corneal neovascularization, unspecified eye
  • NON-BILLABLE CODE - H16.41 for Ghost vessels (corneal)
  • BILLABLE CODE - Use H16.411 for Ghost vessels (corneal), right eye
  • BILLABLE CODE - Use H16.412 for Ghost vessels (corneal), left eye
  • BILLABLE CODE - Use H16.413 for Ghost vessels (corneal), bilateral
  • BILLABLE CODE - Use H16.419 for Ghost vessels (corneal), unspecified eye
  • NON-BILLABLE CODE - H16.42 for Pannus (corneal)
  • BILLABLE CODE - Use H16.421 for Pannus (corneal), right eye
  • BILLABLE CODE - Use H16.422 for Pannus (corneal), left eye
  • BILLABLE CODE - Use H16.423 for Pannus (corneal), bilateral
  • BILLABLE CODE - Use H16.429 for Pannus (corneal), unspecified eye
  • NON-BILLABLE CODE - H16.43 for Localized vascularization of cornea
  • BILLABLE CODE - Use H16.431 for Localized vascularization of cornea, right eye
  • BILLABLE CODE - Use H16.432 for Localized vascularization of cornea, left eye
  • BILLABLE CODE - Use H16.433 for Localized vascularization of cornea, bilateral
  • BILLABLE CODE - Use H16.439 for Localized vascularization of cornea, unspecified eye
  • NON-BILLABLE CODE - H16.44 for Deep vascularization of cornea
  • BILLABLE CODE - Use H16.441 for Deep vascularization of cornea, right eye
  • BILLABLE CODE - Use H16.442 for Deep vascularization of cornea, left eye
  • BILLABLE CODE - Use H16.443 for Deep vascularization of cornea, bilateral
  • BILLABLE CODE - Use H16.449 for Deep vascularization of cornea, unspecified eye

Patient Education


Corneal Disorders

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.

Problems with the cornea include

Treatments of corneal disorders include medicines, corneal transplantation, and corneal laser surgery.

NIH: National Eye Institute


[Read More]

Corneal Disorders

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.

Problems with the cornea include

Treatments of corneal disorders include medicines, corneal transplantation, and corneal laser surgery.

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)