Appendix A - Lippincott Williams & Wilkins

Code Description N185 Posterior laminectomy one or two levels, cervical, thoracic, lumbar N186 Anterior, Anterolateral or Posterolateral - Anterolateral or posterolateral decompression, lumbar or thoracic spine, single disc level N337 Posterior - Repeat posterior exploration or reopening of posterior exploration, more than six months after ... ................
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