Answer:
No, it is a subset of slavery. Chattel slavery is where there is outright ownership of the human being, with him being bought, sold and traded.
The larger term slavery refers to the variety of ways in which one person is forced to give up labor and time against his will, or be unable to leave.
Such as "debt slavery", or the sex slaves. By the broadest of definitions, draftees in a military, prisoners forced to hard labor, and citizens taxed against their will count.