ICD-10 is an international statistical classification used in health care and related industries. ICD-10 is an international statistical classification used in health care and related industries. Produced by the World Health Organization, it is used in several countries around the world. Some have gone on to develop their own national enhancements, building off the international version of the classification. Chapter VII of ICD-10 deals with conditions effecting the eye and adnexa. Examples of conditions captured using codes from Chapter VII include; conjunctivitis, cataracts, and papilloedema