Hemorrhage in optic nerve sheath, bilateral

This code signifies bleeding within the protective covering of both optic nerves. This condition can lead to optic nerve compression and subsequent vision impairment due to increased pressure on the nerve fibers.

Apply this code when documentation explicitly states hemorrhage affecting the optic nerve sheath in both eyes. This is often seen in cases of trauma, ruptured aneurysms, or other conditions causing intracranial bleeding that extends to the optic nerve.

• Ensure documentation specifies "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Always code the underlying cause of the hemorrhage (e.g., trauma, aneurysm) as the primary diagnosis, if known.
• Distinguish from optic nerve infarction or other optic neuropathies not involving hemorrhage.