All

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 C10 Nervous System Diseases D009422 +
  C10.597 Neurologic Manifestations D009461 +
   C10.597.617 Pain D010146 +
    C10.597.617.152 Back Pain D001416 +
      C10.597.617.152.400 Low Back Pain D017116 
 C23 Pathological Conditions, Signs and Symptoms D013568 +
  C23.888 Signs and Symptoms D012816 +
   C23.888.592 Neurologic Manifestations D009461 +
    C23.888.592.612 Pain D010146 +
     C23.888.592.612.107 Back Pain D001416 +
       C23.888.592.612.107.400 Low Back Pain D017116 
 C23 Pathological Conditions, Signs and Symptoms D013568 +
  C23.888 Signs and Symptoms D012816 +
   C23.888.646 Pain D010146 +
    C23.888.646.172 Back Pain D001416 +
      C23.888.646.172.500 Low Back Pain D017116