ICD-10-CM > H00-H59 > H15-H22 > H18 > H18.4 H18.4 Corneal degeneration Non-Billable/Non-Specific Type 1 Excludes Mooren's ulcer (H16.0-)recurrent erosion of cornea (H18.83-) Codes H18.40Unspecified corneal degenerationH18.41Arcus senilisH18.411Arcus senilis, right eyeH18.412Arcus senilis, left eyeH18.413Arcus senilis, bilateralH18.419Arcus senilis, unspecified eyeH18.42Band keratopathyH18.421Band keratopathy, right eyeH18.422Band keratopathy, left eyeH18.423Band keratopathy, bilateralH18.429Band keratopathy, unspecified eyeH18.43Other calcerous corneal degenerationH18.44KeratomalaciaH18.441Keratomalacia, right eyeH18.442Keratomalacia, left eyeH18.443Keratomalacia, bilateralH18.449Keratomalacia, unspecified eyeH18.45Nodular corneal degenerationH18.451Nodular corneal degeneration, right eyeH18.452Nodular corneal degeneration, left eyeH18.453Nodular corneal degeneration, bilateralH18.459Nodular corneal degeneration, unspecified eyeH18.46Peripheral corneal degenerationH18.461Peripheral corneal degeneration, right eyeH18.462Peripheral corneal degeneration, left eyeH18.463Peripheral corneal degeneration, bilateralH18.469Peripheral corneal degeneration, unspecified eyeH18.49Other corneal degeneration
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