On its own, usually not, because a code does not show that the work falls within a listed profession. TN requires citizenship of Canada or Mexico, prearranged professional employment, temporary entry, and the credentials the listing specifies; an internal code speaks to none of these.
The duties carry the eligibility argument
A reviewer needs to see professional work that corresponds to a specific listing, described in terms anyone can follow. Internal grades, cost centre labels, and level numbers do not do that, and expanding an acronym is not the same as describing the job. Ask for plain sentences about the work, and keep the internal reference only as context if the employer wants it there.
Counsel needs the facts, not the label: who initiated the leave, what the employer says about the employment continuing, whether any work is being performed, and what the expected return looks like. The TN profession list is closed: if the occupation and workplace are not described in Appendix 2, the classification is unavailable regardless of how strong the candidate is. Confirm that the worker is a Canadian or Mexican citizen, the position fits a profession listed under USMCA, and the applicant meets that profession’s particular education, licence, or experience rule.