Valid for Submission
H16.9 is a billable diagnosis code used to specify a medical diagnosis of unspecified keratitis. The code H16.9 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 H16.9 might also be used to specify conditions or terms like autosomal recessive keratitis-ichthyosis-deafness syndrome, corneal abrasion, cutaneous syndrome with ichthyosis, factitious keratitis, fungal keratitis , fungal keratitis, etc.
Unspecified diagnosis codes like H16.9 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.
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 H16.9 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Autosomal recessive keratitis-ichthyosis-deafness syndrome
- Corneal abrasion
- Cutaneous syndrome with ichthyosis
- Factitious keratitis
- Fungal keratitis
- Fungal keratitis
- Infected corneal abrasion
- Infectious epithelial keratitis
- Keratitis caused by infection
- Keratitis ichthyosis and deafness syndrome
- Keratitis of left eye caused by fungus
- Keratitis of right eye caused by fungus
- Old keratitis
- Senter syndrome
- Superficial injury of cornea
- 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
Convert H16.9 to ICD-9 Code
Information for Patients
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
- 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)