2021 ICD-10-CM Code H16.8
Other keratitis
Valid for Submission
H16.8 is a billable diagnosis code used to specify a medical diagnosis of other keratitis. The code H16.8 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code H16.8 might also be used to specify conditions or terms like autoimmune keratitis, autosomal dominant keratitis, bacterial keratitis, bilateral marginal keratitis of eyes caused by staphylococcus toxin, bullous keratopathy , chemical injury to cornea, etc.
The code H16.8 describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.
Code Classification
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code H16.8 are found in the index:
- - Keratitis (nodular) (nonulcerative) (simple) (zonular) - H16.9
- - bullosa - H16.8
- - oyster shuckers' - H16.8
- - petrificans - H16.8
- - purulent - H16.8
- - specified type NEC - H16.8
- - suppurative - H16.8
- - vesicular - H16.8
- - xerotic - See Also: Keratomalacia; - H16.8
- - Sclerokeratitis - H16.8
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
- Unacceptable principal diagnosis - There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Autoimmune keratitis
- Autosomal dominant keratitis
- Bacterial keratitis
- Bilateral marginal keratitis of eyes caused by staphylococcus toxin
- Bullous keratopathy
- Chemical injury to cornea
- Chemical keratitis
- Contact lens related sterile keratitis
- Corneal inflammatory stromal infiltration
- Diffuse lamellar keratitis
- Enlargement of corneal endothelial cells
- Eosinophilic keratitis
- Focal stromal keratitis
- Fungal keratitis
- Fusarium infection
- Granulomatous keratitis
- Inflammatory pseudoguttae
- Keratitis bullosa
- Keratitis due to trauma
- Lyme keratitis
- Marginal keratitis
- Marginal keratitis of left eye caused by staphylococcus toxin
- Marginal keratitis of right eye caused by staphylococcus toxin
- Microsporidia keratitis
- Mycobacterial keratitis
- Mycotic keratitis due to Fusarium
- Mycotic keratitis due to Fusarium oxysporum
- Mycotic keratitis due to Fusarium solani
- Necrotizing keratitis
- Ophthalmic Lyme borreliosis
- Sclerokeratitis
- Sterile keratitis
- Vaccinia keratitis
- Viral keratitis
- Xerotic 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
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code H16.8 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2020 through 09/30/2021.
Convert H16.8 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code H16.8 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
- 370.8 - Keratitis NEC (Approximate Flag)
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)
[Learn More]
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)