Brown-Sequard syndrome at C3, init

This code signifies Brown-Sequard syndrome affecting the C3 level of the cervical spinal cord. This syndrome is characterized by hemisection of the spinal cord, resulting in ipsilateral motor paralysis and loss of proprioception, and contralateral loss of pain and temperature sensation below the level of the lesion.

Apply this code for a patient presenting with new onset or initial treatment for Brown-Sequard syndrome specifically localized to the C3 cervical level. Documentation should clearly state the diagnosis of Brown-Sequard syndrome, the C3 spinal cord level involvement, and indicate that this is the initial encounter for this condition.

• Ensure documentation explicitly states "Brown-Sequard syndrome" and the C3 level.
• Verify the encounter is indeed the "initial encounter" for this condition; subsequent encounters would require a different seventh character.
• Distinguish from other spinal cord injuries or syndromes that do not present with the classic hemisection pattern of Brown-Sequard.