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  6. 2024 ICD-10-CM Code H18.3
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code H18.3

Changes of corneal membranes

ICD-10-CM Code:
H18.3
ICD-10 Code for:
Changes of corneal membranes
Is Billable?
Not Valid for Submission
Code Navigator:

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)

H18.3 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of changes of corneal membranes. The code is not specific and is NOT valid for the year 2024 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 Applicable to Changes of corneal membranes

Non-specific codes like H18.3 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for changes of corneal membranes:

  • Use H18.30 for Unspecified corneal membrane change - BILLABLE CODE

  • H18.31 for Folds and rupture in Bowman's membrane - NON-BILLABLE CODE

  • Use H18.311 for Folds and rupture in Bowman's membrane, right eye - BILLABLE CODE

  • Use H18.312 for Folds and rupture in Bowman's membrane, left eye - BILLABLE CODE

  • Use H18.313 for Folds and rupture in Bowman's membrane, bilateral - BILLABLE CODE

  • Use H18.319 for Folds and rupture in Bowman's membrane, unspecified eye - BILLABLE CODE

  • H18.32 for Folds in Descemet's membrane - NON-BILLABLE CODE

  • Use H18.321 for Folds in Descemet's membrane, right eye - BILLABLE CODE

  • Use H18.322 for Folds in Descemet's membrane, left eye - BILLABLE CODE

  • Use H18.323 for Folds in Descemet's membrane, bilateral - BILLABLE CODE

  • Use H18.329 for Folds in Descemet's membrane, unspecified eye - BILLABLE CODE

  • H18.33 for Rupture in Descemet's membrane - NON-BILLABLE CODE

  • Use H18.331 for Rupture in Descemet's membrane, right eye - BILLABLE CODE

  • Use H18.332 for Rupture in Descemet's membrane, left eye - BILLABLE CODE

  • Use H18.333 for Rupture in Descemet's membrane, bilateral - BILLABLE CODE

  • Use H18.339 for Rupture in Descemet's membrane, unspecified eye - BILLABLE CODE

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:

  • 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


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.