2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Disorders Of The Eye And Adnexa 360-379 > Disorders Of Optic Nerve And Visual Pathways 377.* > 2006 ICD-9-CM Diagnosis 377.00 Papilledema unspecified View the most recent version of ICD-9-CM 377.00 Swelling of the OPTIC DISK, usually in association with increased intracranial pressure, characterized by hyperemia, blurring of the disk margins, microhemorrhages, blind spot enlargement, and engorgement of retinal veins. Chronic papilledema may cause OPTIC ATROPHY and visual loss. (pap-il-eh-DEE-ma) Swelling around the optic disk, the area where the optic nerve (the nerve that carries messages from the eye to the brain) enters the eyeball. Papilledema occurs when increased brain pressure caused by tumors or other problems results in swelling of the optic nerve. Swelling around the optic nerve, usually due to pressure on the nerve by a tumor. 377.00 is a specific code that can be used to specify a diagnosis 377.00 contains 4 index entries View the ICD-9-CM Volume 1 377.* hierarchy  Index entries containing 377.00: Papilledema 377.00 associated with decreased ocular pressure 377.02 increased intracranial pressure 377.01 retinal disorder 377.03 choked disc 377.00 infectional 377.00 Syphilis, syphilitic (acquired) 097.9 choked disc 094.89 [377.00]