The ICD 11 Code 09 is a WHO Classified code for Diseases of the visual system
Definition: This refers to any diseases of the visual system, which includes the eyes and adnexa, the visual pathways and brain areas, which initiate and control visual perception and visually guided behaviour.
Exclusion:
Certain conditions originating in the perinatal period
Certain infectious or parasitic diseases
Complications of pregnancy, childbirth and the puerperium
Endocrine, nutritional or metabolic diseases
Injury, poisoning or certain other consequences of external causes
Posterior cortical atrophy