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09 - Diseases of the visual system

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

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

code elsewhere

• Contusion of eyeball or orbital tissues  (NA06.9)
• Foreign body in multiple parts of external eye  (ND70.2)
• Oculocutaneous albinism  (EC23.20)
• Traumatic injury to eyeball  (NA06.8)
• Birth injury to eye  (KA41)
• Late congenital syphilitic oculopathy  (1A60.2)
• Symptoms, signs or clinical findings of the visual system  (MC10-MC2Y)
• Structural developmental anomalies of the eye, eyelid or lacrimal apparatus  (LA10-LA1Z)

sections/codes in this chapter

• Neoplasms of the eye or ocular adnexa
• Reasons for contact with the health care system in relation to eyes or vision
• Disorders of the ocular adnexa or orbit  (9A00-9A4Z)
• Disorders of the eyeball - anterior segment  (9A60-9B3Z)
• Disorders of the eyeball - posterior segment  (9B50-9C0Z)
• Disorders of the eyeball affecting both anterior and posterior segments  (9C20-9C2Z)
• Disorders of the visual pathways or centres  (9C40-9C4Z)
• Glaucoma or glaucoma suspect  (9C60-9C6Z)
• Strabismus or ocular motility disorders  (9C80-9C8Z)
• Disorders of refraction or accommodation  (9D00-9D0Z)
• Postprocedural disorders of eye or ocular adnexa  (9D20-9D25)
• Impairment of visual functions  (9D41-9D7Z)
• Vision impairment  (9D90-9D9Z)
• Other specified diseases of the visual system  (9E1Y)
• Diseases of the visual system, unspecified  (9E1Z)

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