ICD-10 Code H18.019 – Anterior corneal pigmentations, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.019 – Anterior corneal pigmentations, unspecified eye
What it is
This code identifies pigment deposits on the front surface of the cornea in an unspecified eye. Use it when documentation names anterior corneal pigmentation but does not specify laterality.
Clinical signs
Findings may include visible corneal pigment on slit-lamp exam and related documentation of corneal discoloration. Clinical features vary; refer to documentation.
When to use this code
Use H18.019 when the provider documents anterior corneal pigmentation and does not state whether the right or left eye is affected. It also fits when the note confirms the condition but gives no further detail. If laterality is documented elsewhere, code to that specific eye instead.
Do not use for
Do not use this code for corneal pigmentation in a specified eye when the record identifies right or left laterality. Check documentation if the pigmentation is part of another corneal disorder or a different ocular diagnosis.
Coding tip
Confirm laterality in the assessment, exam, and impression before choosing the unspecified-eye code.