377: Disorders of optic nerve and visual pathways
377.3 Optic neuritis
Excludes:
meningococcal optic neuritis (036.81)
377.30: Optic neuritis, unspecified
377.31: Optic papillitis
377.32: Retrobulbar neuritis (acute)
Excludes:
syphilitic retrobulbar neuritis (094.85)
377.33: Nutritional optic neuropathy
377.34: Toxic optic neuropathy
Toxic amblyopia
377.39: Other
Excludes:
ischemic optic neuropathy (377.41)
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