• 1 - A condition where surgery has been performed (Surgical code)
  • 4 - Neurological (including eyes)
    • 3 - Spinal cord
      • 8 - Congenital or acquired deformity or abnormality
        • 1 - Compression of spinal cord or nerve root by intervertebral disc
        • 2 - Spinal stenosis
        • 3 - Spina bifida or meningomyelocele
        • 4 - Multiple sclerosis
        • 5 - Spinal syrinx
• 2 - A condition where no surgery has been performed (non-surgical code)