2022 ICD-10-CM Code H18.599

Other hereditary corneal dystrophies, unspecified eye

Version 2021

Valid for Submission

ICD-10:H18.599
Short Description:Other hereditary corneal dystrophies, unspecified eye
Long Description:Other hereditary corneal dystrophies, unspecified eye

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of sclera, cornea, iris and ciliary body (H15-H22)
      • Other disorders of cornea (H18)

H18.599 is a billable diagnosis code used to specify a medical diagnosis of other hereditary corneal dystrophies, unspecified eye. The code H18.599 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code H18.599 might also be used to specify conditions or terms like adiposa cornea dystrophy, bowman's membrane finding, bowman's membrane finding, bowman's membrane finding, central cloudy dystrophy of francois , combined corneal dystrophy, etc.

Unspecified diagnosis codes like H18.599 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.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Replacement Code

H18599 replaces the following previously assigned ICD-10 code(s):

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

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

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - Code Added, effective from 10/1/2020 through 9/30/2021