cornea" that is characteristic of keratoconus ICD - 10 H 18.6 ICD - 9 371.6 OMIM 148300 DiseasesDB 7158 MedlinePlus 001013 eMedicine oph/104 Keratoconus (from Greek : kerato- horn, cornea; and konos cone) is a degenerative disorder of the eye in which structural changes within the cornea cause it to thin