H18.79 - Other corneal deformities

Version 2023
ICD-10:H18.79
Short Description:Other corneal deformities
Long Description:Other corneal deformities
Status: Not Valid for Submission
Version:ICD-10-CM 2023
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)

H18.79 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of other corneal deformities. The code is not specific and is NOT valid for the year 2023 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 for Other corneal deformities

Non-specific codes like H18.79 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 other corneal deformities:

  • BILLABLE CODE - Use H18.791 for Other corneal deformities, right eye
  • BILLABLE CODE - Use H18.792 for Other corneal deformities, left eye
  • BILLABLE CODE - Use H18.793 for Other corneal deformities, bilateral
  • BILLABLE CODE - Use H18.799 for Other corneal deformities, unspecified eye

Index to Diseases and Injuries References

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 this diagnosis code are found in the injuries and diseases index:

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:

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

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History