2021 ICD-10-CM Code H16.20
Unspecified keratoconjunctivitis
Not Valid for Submission
H16.20 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of unspecified keratoconjunctivitis. The code is NOT valid for the year 2021 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.
Unspecified diagnosis codes like H16.20 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
| ICD-10: | H16.20 |
| Short Description: | Unspecified keratoconjunctivitis |
| Long Description: | Unspecified keratoconjunctivitis |
Code Classification
Specific Coding for Unspecified keratoconjunctivitis
Header codes like H16.20 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 unspecified keratoconjunctivitis:
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code H16.20:
Inclusion Terms
Inclusion TermsThese terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Superficial keratitis with conjunctivitis NOS
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 H16.20 are found in the index:
- - Keratoconjunctivitis - H16.20
Clinical Information
- CONJUNCTIVITIS ALLERGIC-. conjunctivitis due to hypersensitivity to various allergens.
- KERATOCONJUNCTIVITIS-. simultaneous inflammation of the cornea and conjunctiva.
- KERATOCONJUNCTIVITIS SICCA-. drying and inflammation of the conjunctiva as a result of insufficient lacrimal secretion. when found in association with xerostomia and polyarthritis it is called sjogren's syndrome.
- KERATOCONJUNCTIVITIS INFECTIOUS-. infectious diseases of cattle sheep and goats characterized by blepharospasm lacrimation conjunctivitis and varying degrees of corneal opacity and ulceration. in cattle the causative agent is moraxella moraxella bovis; in sheep mycoplasma; rickettsia; chlamydia; or acholeplasma; in goats rickettsia.
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)