H18.9
ICD-10-CMThis code signifies an undiagnosed or poorly defined pathological condition affecting the cornea, the transparent outer layer of the eye. It indicates that the specific nature of the corneal abnormality is not documented.
This code is appropriate when the medical record indicates a corneal disorder but lacks sufficient detail to assign a more specific diagnosis. It can be used when the provider has noted a corneal issue but further diagnostic workup is pending or the exact etiology remains unknown.
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