Pennsylvania Subscriber
Answer: The answer depends on the type of mass the doctor operated on. If the mass was a neoplasm, you should report 63275 (Laminectomy for biopsy/excision of intraspinal neoplasm; extradural, cervical).
If it was not a neoplasm, look at code 63270 (Laminectomy for excision of intraspinal lesion other than neoplasm, intradural; cervical). For example, this is the code you would report for excision of a synovial cyst. You should submit the diagnosis and the procedure codes via a pathology report, in case of audit.