Neurosurgery Coding Alert

You Be the Coder:

Whats Best for Re-Exploration?

Question: Im having difficulty coding a right L4-5 redo laminectomy, foraminotomy and diskectomy. So far, the only choice Ive come up with is 63047 with modifier -22 appended. Is this correct, or is there a better code choice?

New Hampshire Subscriber

Answer: Rather than 63047 (Laminectomy, facetectomy and foraminotomy [unilateral or bilateral with decompression of spinal cord, cauda equina and/or nerve root(s), (e.g., spinal or lateral recess stenosis)], single vertebral segment; lumbar), you should choose 63042 (Laminotomy [hemilaminectomy], with decompression of nerve root[s], including partial facetectomy, foraminotomy and/or excision of herniated intervertebral disk, re-exploration, single interspace; lumbar) even if the redo laminotomy extends to create a laminectomy (removal of entire laminar segment).

The code descriptor specifically states re-exploration and therefore includes typical additional work required for operating in an altered surgical field, which may include dissection of scar tissue and adhesions. For this reason, modifier -22 (Unusual procedural services) is not required.

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