" /> Impairment of colour vision - CISMeF





ICD-11 code : 9D44;

Preferred Label : Impairment of colour vision;

ICD-11 definition : 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.;

ICD-11 synonym : monochromatism; colour vision deficiency; protan defect; achromatism; colour blindness; total colour blindness; congenital colour blindness; complete colour blindness; achromatopsia; acquired colour vision deficiency; acquired colour blindness;

ICD-11 inclusion : achromatopsia; colour blindness; acquired colour vision deficiency;

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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.

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29/07/2025


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