ICD-10-CM Code H16

Keratitis

Version 2021 Non-Billable Code

Not Valid for Submission

H16 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of keratitis. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

ICD-10:H16
Short Description:Keratitis
Long Description:Keratitis

Consider the following ICD-10 codes with a higher level of specificity:

  • H16.0 - Corneal ulcer
  • H16.00 - Unspecified corneal ulcer
  • H16.001 - Unspecified corneal ulcer, right eye
  • H16.002 - Unspecified corneal ulcer, left eye
  • H16.003 - Unspecified corneal ulcer, bilateral
  • H16.009 - Unspecified corneal ulcer, unspecified eye
  • H16.01 - Central corneal ulcer
  • H16.011 - Central corneal ulcer, right eye
  • H16.012 - Central corneal ulcer, left eye
  • H16.013 - Central corneal ulcer, bilateral
  • H16.019 - Central corneal ulcer, unspecified eye
  • H16.02 - Ring corneal ulcer
  • H16.021 - Ring corneal ulcer, right eye
  • H16.022 - Ring corneal ulcer, left eye
  • H16.023 - Ring corneal ulcer, bilateral
  • H16.029 - Ring corneal ulcer, unspecified eye
  • H16.03 - Corneal ulcer with hypopyon
  • H16.031 - Corneal ulcer with hypopyon, right eye
  • H16.032 - Corneal ulcer with hypopyon, left eye
  • H16.033 - Corneal ulcer with hypopyon, bilateral
  • H16.039 - Corneal ulcer with hypopyon, unspecified eye
  • H16.04 - Marginal corneal ulcer
  • H16.041 - Marginal corneal ulcer, right eye
  • H16.042 - Marginal corneal ulcer, left eye
  • H16.043 - Marginal corneal ulcer, bilateral
  • H16.049 - Marginal corneal ulcer, unspecified eye
  • H16.05 - Mooren's corneal ulcer
  • H16.051 - Mooren's corneal ulcer, right eye
  • H16.052 - Mooren's corneal ulcer, left eye
  • H16.053 - Mooren's corneal ulcer, bilateral
  • H16.059 - Mooren's corneal ulcer, unspecified eye
  • H16.06 - Mycotic corneal ulcer
  • H16.061 - Mycotic corneal ulcer, right eye
  • H16.062 - Mycotic corneal ulcer, left eye
  • H16.063 - Mycotic corneal ulcer, bilateral
  • H16.069 - Mycotic corneal ulcer, unspecified eye
  • H16.07 - Perforated corneal ulcer
  • H16.071 - Perforated corneal ulcer, right eye
  • H16.072 - Perforated corneal ulcer, left eye
  • H16.073 - Perforated corneal ulcer, bilateral
  • H16.079 - Perforated corneal ulcer, unspecified eye
  • H16.1 - Other and unspecified superficial keratitis without conjunctivitis
  • H16.10 - Unspecified superficial keratitis
  • H16.101 - Unspecified superficial keratitis, right eye
  • H16.102 - Unspecified superficial keratitis, left eye
  • H16.103 - Unspecified superficial keratitis, bilateral
  • H16.109 - Unspecified superficial keratitis, unspecified eye
  • H16.11 - Macular keratitis
  • H16.111 - Macular keratitis, right eye
  • H16.112 - Macular keratitis, left eye
  • H16.113 - Macular keratitis, bilateral
  • H16.119 - Macular keratitis, unspecified eye
  • H16.12 - Filamentary keratitis
  • H16.121 - Filamentary keratitis, right eye
  • H16.122 - Filamentary keratitis, left eye
  • H16.123 - Filamentary keratitis, bilateral
  • H16.129 - Filamentary keratitis, unspecified eye
  • H16.13 - Photokeratitis
  • H16.131 - Photokeratitis, right eye
  • H16.132 - Photokeratitis, left eye
  • H16.133 - Photokeratitis, bilateral
  • H16.139 - Photokeratitis, unspecified eye
  • H16.14 - Punctate keratitis
  • H16.141 - Punctate keratitis, right eye
  • H16.142 - Punctate keratitis, left eye
  • H16.143 - Punctate keratitis, bilateral
  • H16.149 - Punctate keratitis, unspecified eye
  • H16.2 - Keratoconjunctivitis
  • H16.20 - Unspecified keratoconjunctivitis
  • H16.201 - Unspecified keratoconjunctivitis, right eye
  • H16.202 - Unspecified keratoconjunctivitis, left eye
  • H16.203 - Unspecified keratoconjunctivitis, bilateral
  • H16.209 - Unspecified keratoconjunctivitis, unspecified eye
  • H16.21 - Exposure keratoconjunctivitis
  • H16.211 - Exposure keratoconjunctivitis, right eye
  • H16.212 - Exposure keratoconjunctivitis, left eye
  • H16.213 - Exposure keratoconjunctivitis, bilateral
  • H16.219 - Exposure keratoconjunctivitis, unspecified eye
  • H16.22 - Keratoconjunctivitis sicca, not specified as Sjogren's
  • H16.221 - Keratoconjunctivitis sicca, not specified as Sjogren's, right eye
  • H16.222 - Keratoconjunctivitis sicca, not specified as Sjogren's, left eye
  • H16.223 - Keratoconjunctivitis sicca, not specified as Sjogren's, bilateral
  • H16.229 - Keratoconjunctivitis sicca, not specified as Sjogren's, unspecified eye
  • H16.23 - Neurotrophic keratoconjunctivitis
  • H16.231 - Neurotrophic keratoconjunctivitis, right eye
  • H16.232 - Neurotrophic keratoconjunctivitis, left eye
  • H16.233 - Neurotrophic keratoconjunctivitis, bilateral
  • H16.239 - Neurotrophic keratoconjunctivitis, unspecified eye
  • H16.24 - Ophthalmia nodosa
  • H16.241 - Ophthalmia nodosa, right eye
  • H16.242 - Ophthalmia nodosa, left eye
  • H16.243 - Ophthalmia nodosa, bilateral
  • H16.249 - Ophthalmia nodosa, unspecified eye
  • H16.25 - Phlyctenular keratoconjunctivitis
  • H16.251 - Phlyctenular keratoconjunctivitis, right eye
  • H16.252 - Phlyctenular keratoconjunctivitis, left eye
  • H16.253 - Phlyctenular keratoconjunctivitis, bilateral
  • H16.259 - Phlyctenular keratoconjunctivitis, unspecified eye
  • H16.26 - Vernal keratoconjunctivitis, with limbar and corneal involvement
  • H16.261 - Vernal keratoconjunctivitis, with limbar and corneal involvement, right eye
  • H16.262 - Vernal keratoconjunctivitis, with limbar and corneal involvement, left eye
  • H16.263 - Vernal keratoconjunctivitis, with limbar and corneal involvement, bilateral
  • H16.269 - Vernal keratoconjunctivitis, with limbar and corneal involvement, unspecified eye
  • H16.29 - Other keratoconjunctivitis
  • H16.291 - Other keratoconjunctivitis, right eye
  • H16.292 - Other keratoconjunctivitis, left eye
  • H16.293 - Other keratoconjunctivitis, bilateral
  • H16.299 - Other keratoconjunctivitis, unspecified eye
  • H16.3 - Interstitial and deep keratitis
  • H16.30 - Unspecified interstitial keratitis
  • H16.301 - Unspecified interstitial keratitis, right eye
  • H16.302 - Unspecified interstitial keratitis, left eye
  • H16.303 - Unspecified interstitial keratitis, bilateral
  • H16.309 - Unspecified interstitial keratitis, unspecified eye
  • H16.31 - Corneal abscess
  • H16.311 - Corneal abscess, right eye
  • H16.312 - Corneal abscess, left eye
  • H16.313 - Corneal abscess, bilateral
  • H16.319 - Corneal abscess, unspecified eye
  • H16.32 - Diffuse interstitial keratitis
  • H16.321 - Diffuse interstitial keratitis, right eye
  • H16.322 - Diffuse interstitial keratitis, left eye
  • H16.323 - Diffuse interstitial keratitis, bilateral
  • H16.329 - Diffuse interstitial keratitis, unspecified eye
  • H16.33 - Sclerosing keratitis
  • H16.331 - Sclerosing keratitis, right eye
  • H16.332 - Sclerosing keratitis, left eye
  • H16.333 - Sclerosing keratitis, bilateral
  • H16.339 - Sclerosing keratitis, unspecified eye
  • H16.39 - Other interstitial and deep keratitis
  • H16.391 - Other interstitial and deep keratitis, right eye
  • H16.392 - Other interstitial and deep keratitis, left eye
  • H16.393 - Other interstitial and deep keratitis, bilateral
  • H16.399 - Other interstitial and deep keratitis, unspecified eye
  • H16.4 - Corneal neovascularization
  • H16.40 - Unspecified corneal neovascularization
  • H16.401 - Unspecified corneal neovascularization, right eye
  • H16.402 - Unspecified corneal neovascularization, left eye
  • H16.403 - Unspecified corneal neovascularization, bilateral
  • H16.409 - Unspecified corneal neovascularization, unspecified eye
  • H16.41 - Ghost vessels (corneal)
  • H16.411 - Ghost vessels (corneal), right eye
  • H16.412 - Ghost vessels (corneal), left eye
  • H16.413 - Ghost vessels (corneal), bilateral
  • H16.419 - Ghost vessels (corneal), unspecified eye
  • H16.42 - Pannus (corneal)
  • H16.421 - Pannus (corneal), right eye
  • H16.422 - Pannus (corneal), left eye
  • H16.423 - Pannus (corneal), bilateral
  • H16.429 - Pannus (corneal), unspecified eye
  • H16.43 - Localized vascularization of cornea
  • H16.431 - Localized vascularization of cornea, right eye
  • H16.432 - Localized vascularization of cornea, left eye
  • H16.433 - Localized vascularization of cornea, bilateral
  • H16.439 - Localized vascularization of cornea, unspecified eye
  • H16.44 - Deep vascularization of cornea
  • H16.441 - Deep vascularization of cornea, right eye
  • H16.442 - Deep vascularization of cornea, left eye
  • H16.443 - Deep vascularization of cornea, bilateral
  • H16.449 - Deep vascularization of cornea, unspecified eye
  • H16.8 - Other keratitis
  • H16.9 - Unspecified keratitis

Clinical Information

  • CORNEAL ULCER-. loss of epithelial tissue from the surface of the cornea due to progressive erosion and necrosis of the tissue; usually caused by bacterial fungal or viral infection.
  • KERATITIS-. inflammation of the cornea.
  • KERATITIS DENDRITIC-. a form of herpetic keratitis characterized by the formation of small vesicles which break down and coalesce to form recurring dendritic ulcers characteristically irregular linear branching and ending in knoblike extremities. dictionary of visual science 3d ed
  • ACANTHAMOEBA KERATITIS-. infection of the cornea by an ameboid protozoan which may cause corneal ulceration leading to blindness.
  • KERATITIS HERPETIC-. a superficial epithelial herpesvirus hominis infection of the cornea characterized by the presence of small vesicles which may break down and coalesce to form dendritic ulcers keratitis dendritic. dictionary of visual science 3d ed

Code Classification

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

Code History

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

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

  • Refractive errors
  • Allergies
  • Infections
  • Injuries
  • Dystrophies - conditions in which parts of the cornea lose clarity due to a buildup of cloudy material

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

NIH: National Eye Institute

  • Cloudy cornea (Medical Encyclopedia)
  • Corneal injury (Medical Encyclopedia)
  • Corneal transplant (Medical Encyclopedia)
  • Corneal ulcers and infections (Medical Encyclopedia)
  • Fuchs dystrophy (Medical Encyclopedia)
  • Keratoconus (Medical Encyclopedia)

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