ICD-11 classes
09 Diseases of the visual system
Impairment of visual functions
9D44 — Impairment of colour vision
ICD-11 9D44 — Impairment of colour vision
Colour vision refers to the ability to distinguish colour differences. True colour “blindness” is extremely rare. Most colour vision deficiencies are minor, and congenital, with X-linked recessive inheritance (more prevalent among men). Some drugs and optic neuritis may also cause colour vision deficiencies.
It includes 3 items.
- achromatopsia
- acquired colour vision deficiency
- colour blindness
The diagnosis excludes nothing.
It has no clarifying diagnoses.