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Table 4 Our recommendation for classification of visual impairment in a person in the International Statistical Classification of Diseases.

From: Revision of visual impairment definitions in the International Statistical Classification of Diseases

ICD code Level of visual impairment in a person
H54 Blindness, moderate visual impairment and mild visual impairment
H54.0 Blindness in a person
Visual impairment category 3, 4, 5 or 6 in the better eye.
Following are subsets of blindness in a person:
• Severe blindness – visual impairment category 4 in the better eye.
• Very severe blindness – visual impairment category 5 in the better eye.
• Total blindness – visual impairment category 6 in both eyes.
H54.1 Moderate visual impairment in a person
Visual impairment category 2 in the better eye.
H54.2 Mild visual impairment in a person
Visual impairment category 1 in the better eye.
H54.3 Unspecified visual impairment in a person
Visual impairment category 9 in both eyes.
H54.4 Blindness in one eye of a person
Visual impairment category 3, 4, 5 or 6 in one eye and no visual impairment in the other eye.
Following are subsets of blindness in one eye of a person:
• Severe blindness – visual impairment category 4 in one eye and no visual impairment in the other eye.
• Very severe blindness – visual impairment category 5 in one eye and no visual impairment in the other eye.
• Total blindness – visual impairment category 6 in one eye and no visual impairment in the other eye.
H54.5 Moderate visual impairment in one eye of a person
Visual impairment category 2 in one eye and no visual impairment in the other eye.
H54.6 Mild visual impairment in one eye of a person
Visual impairment category 1 in one eye and no visual impairment in the other eye.
H54.7 Unspecified visual impairment in one eye of a person
Visual impairment category 9 in one eye and no visual impairment in the other eye.