2024 ICD-10-CM Diagnosis Code H16
Keratitis
- ICD-10-CM Code:
- H16
- ICD-10 Code for:
- Keratitis
- Is Billable?
- Not Valid for Submission
- Code Navigator:
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 2024 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 Applicable to Keratitis
Non-specific codes like H16 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for keratitis:
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 - NON-BILLABLE CODE
Use H16.8 for Other keratitis - BILLABLE CODE
Use H16.9 for Unspecified keratitis - BILLABLE CODE
Clinical Information
Acanthamoeba Keratitis
infection of the cornea by an ameboid protozoan which may cause corneal ulceration leading to blindness.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)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)Acanthamoeba Keratitis
keratitis due to infection by acanthamoeba; it is usually associated with soft contact lens wear, particularly overnight wear.Dendritic Keratitis
infection of the cornea with herpes simplex virus, resulting in branching ulcers of the corneal tissue.Fungal Keratitis
keratitis caused by fungi.Grade 1 Keratitis, CTCAE|CTCAE Grade 1 Keratitis (corneal inflammation/corneal ulceration)|Grade 1 Keratitis|Grade 1 Keratitis (corneal inflammation/corneal ulceration)
asymptomatic; clinical or diagnostic observations only; intervention not indicatedGrade 2 Keratitis, CTCAE|CTCAE Grade 2 Keratitis (corneal inflammation/corneal ulceration)|Grade 2 Keratitis|Grade 2 Keratitis (corneal inflammation/corneal ulceration)
symptomatic; moderate decrease in visual acuity (best corrected visual acuity 20/40 and better or 3 lines or less decreased vision from known baseline)Grade 3 Keratitis, CTCAE|CTCAE Grade 3 Keratitis (corneal inflammation/corneal ulceration)|Grade 3 Keratitis|Grade 3 Keratitis (corneal inflammation/corneal ulceration)
symptomatic with marked decrease in visual acuity (best corrected visual acuity worse than 20/40 or more than 3 lines of decreased vision from known baseline, up to 20/200); corneal ulcer; limiting self care adlGrade 4 Keratitis, CTCAE|CTCAE Grade 4 Keratitis (corneal inflammation/corneal ulceration)|Grade 4 Keratitis|Grade 4 Keratitis (corneal inflammation/corneal ulceration)
perforation; best corrected visual acuity of 20/200 or worse in the affected eyeInfectious Keratitis|Infective Keratitis
inflammation of the cornea secondary to an infectious process.Keratitis, CTCAE|Keratitis|Keratitis|Keratitis (corneal inflammation/corneal ulceration)
a disorder characterized by inflammation to the cornea of the eye.PAX6 wt Allele|AN|AN2|Aniridia, Keratitis Gene|D11S812E|MGC17209|MGDA|Paired Box 6 wt Allele|Paired Box Gene 6 (Aniridia, Keratitis) Gene|WAGR
human pax6 wild-type allele is located in the vicinity of 11p13 and is approximately 29 kb in length. this allele, which encodes paired box protein pax-6, plays a role in the mediation of transcription. mutations in the gene are associated with a number of congenital disorders of the eye.Photokeratitis|Ultraviolet Keratitis|Ultraviolet Keratitis
injury to the cornea secondary to ultraviolet light.
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:
- 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
[Learn More in MedlinePlus]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.