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21
Symptoms, signs or clinical findings, not elsewhere classified
Symptoms, signs or clinical findings of the visual system
MC21
category
Impairment of electrophysiological functions
4 subordinate codes
MC21.0
Profound impairment of electrooculogram
MC21.1
Normal electroretinogram
4B4Y
Other specified diseases of the immune system
4B4Z
Diseases of the immune system, unspecified
Nearby in Symptoms, signs or clinical findings of the visual system
MC10-MC1Y
Symptoms or signs involving the visual system
MC20
Clinical findings of the visual system
4B4Y
Other specified diseases of the immune system
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MC20 — Clinical findings of the visual system
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4B4Y — Other specified diseases of the immune system