ICD-10-CM H18.4: Corneal degeneration

ICD-10-CM Diagnosis Code (2025)

Official Description for H18.4

Corneal degeneration

Coding Notes & Guidelines for H18.4

Excludes1: Not Coded Here
  • Mooren's ulcer (H16.0-)
  • recurrent erosion of cornea (H18.83-)
Excludes1: Not Coded Here

keratomalacia due to vitamin A deficiency (E50.4)

Inclusion Terms

Senile corneal changes

Parent Code (Less Specific):

About ICD-10-CM Code H18.4 (Corneal degeneration)

ICD-10-CM code H18.4 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM H18.4 became effective on October 1, 2024.

This page provides detailed information about H18.4 - Corneal degeneration. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Corneal degeneration.