Disorders of right acoustic nerve

This code signifies a non-inflammatory, non-neoplastic dysfunction or pathology affecting the eighth cranial nerve on the right side. This can manifest as various auditory or vestibular symptoms originating from the nerve itself, rather than the inner ear or central nervous system.

Use this code when documentation clearly indicates a disorder of the right acoustic nerve, such as right-sided sensorineural hearing loss attributed to nerve damage, right tinnitus originating from the nerve, or right-sided vestibular symptoms due to nerve dysfunction. Supporting documentation should specify the laterality and rule out inner ear or central causes.

• Ensure documentation specifies "right" acoustic nerve involvement; otherwise, an unspecified laterality code may be more appropriate.
• Distinguish from inner ear disorders (e.g., Meniere's disease, labyrinthitis) which have different code assignments.
• If a specific cause for the nerve disorder is identified (e.g., acoustic neuroma), code the underlying condition first, followed by this code if the nerve disorder is a distinct manifestation.