Optic disc swelling

Definition

This refers to swelling in the location where ganglion cell axons exit the eye to form the optic nerve. There are no light sensitive rods or cones to respond to a light stimulus at this point.

4 subordinate codes

• 9C40.A0Papilloedema
• 9C40.A1Optic disc swelling associated with uveitis
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Disorder of the optic nerve

• 9C40.0Infectious optic neuropathy
• 9C40.1Optic neuritis
• 9C40.2Neuroretinitis
• 9C40.3Perineuritis of optic nerve
• 9C40.4Ischaemic optic neuropathy
• 9C40.5Compressive optic neuropathy
• 9C40.6Infiltrative optic neuropathy
• 9C40.7Traumatic optic neuropathy