{
    "@context": "http://id.who.int/icd/contexts/contextForICD10Entity.json",
    "@id": "http://id.who.int/icd/release/10/2008/H54.7",
    "parent": [
        "http://id.who.int/icd/release/10/2008/H54"
    ],
    "browserUrl": "http://apps.who.int/classifications/icd10/browse/2008/en#/H54.7",
    "code": "H54.7",
    "title": {
        "@language": "en",
        "@value": "Unspecified visual loss"
    },
    "inclusion": [
        {
            "label": {
                "@language": "en",
                "@value": "Visual impairment category 9 NOS."
            }
        }
    ],
    "codingHint": [
        {
            "label": {
                "@language": "en",
                "@value": "The table below gives a classification of severity of visual impairment recommended by a WHO Study Group on the Prevention of Blindness, Geneva, 6-10 November l972. The term \"low vision\" in category H54 comprises categories 1 and 2 of the table, the term \"blindness\" categories 3, 4 and 5, and the term \"unqualified visual loss\" category 9. If the extent of the visual field is taken into account, patients with a field no greater than 10 o but greater than 5 o around central fixation should be placed in category 3 and patients with a field no greater than 5 o around central fixation should be placed in category 4, even if the central acuity is not impaired."
            }
        },
        {
            "label": {
                "@language": "en",
                "@value": "Categories of visual impairment Visual acuity with best possible correction Maximum less than: Minimum equal to or better than: 1 6/18 6/60 3/10 (0,3) 1/10 (0,1) 20/70 20/200 2 6/60 3/60 1/10 (0,1) 1/20 (0,05) 20/200 20/400 3 3/60 1/60 (finger counting at 1 metre) 1/20 (0,05) 1/50 (0,02) 20/400 5/300 (20/1200) 4 1/60 (finger counting at 1 metre) Light perception 1/50 (0,02) 5/300 5 No light perception 9 Undetermined or unspecified"
            }
        }
    ],
    "classKind": "category"
}