Is hydrocodone-acetamenophene and Vicodin the same?

No

Hydrocodone or dihydrocodeinone is a semi-synthetic opioid derived from either of two naturally occurring opiates-codeine and thebaine.

IUPAC name: 4,5a-Epoxy-3-methoxy-17-methylmorphinan-6-one

whereas

Codeine or 3-methylmorphine (a natural isomer of methylated morphine, the other being the semi-synthetic 6-methylmorphine) is an opiate used for its analgesic, antitussive, and antidiarrheal properties.

IUPAC name: (5α,6α)-7,8-didehydro-4,5-epoxy-3-methoxy-17-methylmorphinan-6-ol

IUPAC is the International Union for Pure and Applied Chemistry.