ICD-11 classes
09 Diseases of the visual system
Vision impairment

ICD-11 Vision impairment

A vision impairment results when an eye condition affects the visual system and one or more of its vision functions. Typically, population-based surveys measure visual impairment using exclusively visual acuity, with severity categorized as mild, moderate or severe distance vision impairment or blindness, and near vision impairment. However, in the clinical setting, other visual functions are also often assessed, such as a person’s field of vision, contrast sensitivity and colour vision.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis contains 8 clarifying diagnoses:

  1. 9D90 — Vision impairment including blindness
    It contains 6 clarifying diagnoses.
  2. 9D92 — Specific vision dysfunctions
  3. 9D93 — Complex vision-related dysfunctions
  4. 9D94 — Impairment of presenting visual acuity
  5. 9D95 — Impairment of best corrected visual acuity
  6. 9D96 — Impairment of uncorrected visual acuity
  7. 9D9Y — Other specified vision impairment
  8. 9D9Z — Vision impairment, unspecified

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