What is the cpt code for cervical fusion?

22551 Cervical spine, anterior interbody fusion (including discectomy) without instrumentation

_Single vertebral intervention_

22553 Cervical spine, anterior interbody fusion (including discectomy) with instrumentation; single vertebral level

_with allograft or autograft inlay intervertebral body fusion device(s)_

22554 Each additional vertebral level (List separately in addition to code for primary procedure)

22590 Cervical spine, decompression any type (e.g., laminectomy, foraminotomy, facetectomy, or osteophytectomy); single level

22592 Each additional vertebral level (List separately in addition to code for primary procedure)