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.

Exclusions

• Certain conditions originating in the perinatal period (19)
• Certain infectious or parasitic diseases (01)
• Complications of pregnancy, childbirth and the puerperium (18)
• Endocrine, nutritional or metabolic diseases (05)
• Injury, poisoning or certain other consequences of external causes (22)
• Posterior cortical atrophy (8A21.0)

15 subordinate codes

• 9A00-9A4ZDisorders of the ocular adnexa or orbit
• 9A60-9B3ZDisorders of the eyeball - anterior segment
• 9B50-9C0ZDisorders of the eyeball - posterior segment
• 9C20-9C2ZDisorders of the eyeball affecting both anterior and posterior segments
• 9C40-9C4ZDisorders of the visual pathways or centres
• 9C60-9C61.ZGlaucoma or glaucoma suspect
• 9C80-9C8ZStrabismus or ocular motility disorders
• 9D00-9D0ZDisorders of refraction or accommodation
• 9D20-9D25Postprocedural disorders of eye or ocular adnexa
• 9D41-9D7ZImpairment of visual functions
• 9D90-9D9ZVision impairment
• Neoplasms of the eye or ocular adnexa
• Reasons for contact with the health care system in relation to eyes or vision
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified