2022 ICD-10-CM Code H16


Version 2021

Not Valid for Submission

Short Description:Keratitis
Long Description:Keratitis

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of sclera, cornea, iris and ciliary body (H15-H22)
      • Keratitis (H16)

H16 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of keratitis. 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.

Specific Coding for Keratitis

Non-specific codes like H16 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 keratitis:

  • NON-BILLABLE CODE - H16.0 for Corneal ulcer
  • NON-BILLABLE CODE - H16.00 for Unspecified corneal ulcer
  • NON-BILLABLE CODE - H16.01 for Central corneal ulcer
  • NON-BILLABLE CODE - H16.02 for Ring corneal ulcer
  • NON-BILLABLE CODE - H16.03 for Corneal ulcer with hypopyon
  • NON-BILLABLE CODE - H16.04 for Marginal corneal ulcer
  • NON-BILLABLE CODE - H16.05 for Mooren's corneal ulcer
  • NON-BILLABLE CODE - H16.06 for Mycotic corneal ulcer
  • NON-BILLABLE CODE - H16.07 for Perforated corneal ulcer
  • NON-BILLABLE CODE - H16.1 for Other and unspecified superficial keratitis without conjunctivitis
  • NON-BILLABLE CODE - H16.10 for Unspecified superficial keratitis
  • NON-BILLABLE CODE - H16.11 for Macular keratitis
  • NON-BILLABLE CODE - H16.12 for Filamentary keratitis
  • NON-BILLABLE CODE - H16.13 for Photokeratitis
  • NON-BILLABLE CODE - H16.14 for Punctate keratitis
  • NON-BILLABLE CODE - H16.2 for Keratoconjunctivitis
  • NON-BILLABLE CODE - H16.20 for Unspecified keratoconjunctivitis
  • NON-BILLABLE CODE - H16.21 for Exposure keratoconjunctivitis
  • NON-BILLABLE CODE - H16.22 for Keratoconjunctivitis sicca, not specified as Sjogren's
  • NON-BILLABLE CODE - H16.23 for Neurotrophic keratoconjunctivitis
  • NON-BILLABLE CODE - H16.24 for Ophthalmia nodosa
  • NON-BILLABLE CODE - H16.25 for Phlyctenular keratoconjunctivitis
  • NON-BILLABLE CODE - H16.26 for Vernal keratoconjunctivitis, with limbar and corneal involvement
  • NON-BILLABLE CODE - H16.29 for Other keratoconjunctivitis
  • NON-BILLABLE CODE - H16.3 for Interstitial and deep keratitis
  • NON-BILLABLE CODE - H16.30 for Unspecified interstitial keratitis
  • NON-BILLABLE CODE - H16.31 for Corneal abscess
  • NON-BILLABLE CODE - H16.32 for Diffuse interstitial keratitis
  • NON-BILLABLE CODE - H16.33 for Sclerosing keratitis
  • NON-BILLABLE CODE - H16.39 for Other interstitial and deep keratitis
  • NON-BILLABLE CODE - H16.4 for Corneal neovascularization
  • NON-BILLABLE CODE - H16.40 for Unspecified corneal neovascularization
  • NON-BILLABLE CODE - H16.41 for Ghost vessels (corneal)
  • NON-BILLABLE CODE - H16.42 for Pannus (corneal)
  • NON-BILLABLE CODE - H16.43 for Localized vascularization of cornea
  • NON-BILLABLE CODE - H16.44 for Deep vascularization of cornea
  • BILLABLE CODE - Use H16.8 for Other keratitis
  • BILLABLE CODE - Use H16.9 for Unspecified keratitis

Clinical Information

Information for Patients

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)