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Chapter VII
Blindness and low vision - H54
Note:
For definition of visual impairment categories see table below.
Excludes:
- amaurosis fugax ( G45.3 )
| H54.0 |
Blindness, both eyes
Visual impairment categories 3, 4, 5 in both eyes.
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| H54.1 |
Blindness, one eye, low vision other eye
Visual impairment categories 3, 4, 5 in one eye, with categories 1 or 2 in the other eye.
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| H54.2 |
Low vision, both eyes
Visual impairment categories 1 or 2 in both eyes.
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| H54.3 |
Unqualified visual loss, both eyes
Visual impairment category 9 in both eyes.
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| H54.4 |
Blindness, one eye
Visual impairment categories 3, 4, 5 in one eye [normal vision in other eye].
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| H54.5 |
Low vision, one eye
Visual impairment categories 1 or 2 in one eye [normal vision in other eye].
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| H54.6 |
Unqualified visual loss, one eye
Visual impairment category 9 in one eye [normal vision in other eye].
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| H54.7 |
Unspecified visual loss
Visual impairment category 9 NOS.
Note:
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.
[Foot note: WHO Technical Report Series No. 518, 1973]
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.
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Related drugs:
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