ICD-10-CM 2027
ICD-10 code for cornea xerosis
From the official ICD-10-CM alphabetic index entry “Xerosis › cornea”. Page updated September 29, 2026.
About coding cornea xerosis
The ICD-10-CM code for cornea xerosis is H18.89 (Other specified disorders of cornea). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H18.89.
Within H18.8, choose H18.89 (Other specified disorders of cornea) only when documentation doesn't support a more specific option: anesthesia and hypoesthesia of cornea (H18.81), corneal disorder due to contact lens (H18.82) and recurrent erosion of cornea (H18.83).
To report this condition, pick the subcode that matches the documentation: H18.891 (right eye), H18.892 (left eye), H18.893 (bilateral) and H18.899 (unspecified eye).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific cornea xerosis codes (official index)
Common questions about cornea xerosis ICD-10 codes
What is the ICD-10 code for cornea xerosis?
- H18.89 — Other specified disorders of cornea (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: E50.3, E50.2.
What is the ICD-10 code for vitamin a deficiency cornea xerosis?
- E50.2 — Vitamin A deficiency with corneal xerosis.
Is H18.89 billable?
- No. H18.89 is a header code. Report one of its more specific subcodes instead.