Help with diagnoses for spine surgery

I need help with the diagnoses for this pt.

1. Pseudoarthrosis at C6-7

2. Status post C6-7 anterior cervical diskectom and fusion.

3. Stenosis.

4. Radiculopathy.

I have codes.

1. 733.82

2. V45.43

3. 723.0

4. 723.4

They are doing a c6-7 arthrodesis, etc. and I didn't now whether I needed to code a complication code since he already had discectomy and fusion or would those codes above be correct. Thanks for any help.

Help with diagnoses for spine surgery