Sciatica

**Definition:** A condition characterized by pain radiating from the back into the buttock and posterior/lateral aspects of the leg. Sciatica may be a manifestation of SCIATIC NEUROPATHY; RADICULOPATHY (involving the SPINAL NERVE ROOTS; L4, L5, S1, or S2, often associated with INTERVERTEBRAL DISK DISPLACEMENT); or lesions of the CAUDA EQUINA.

**Tree numbers:** - C10.668.829.500.675.800 - C10.668.829.600.800 - C23.888.592.612.664.800

**Synonyms:** - Neuralgia, Sciatic - Sciatic Neuralgia