The Brazilian attacker has set his sights on the full three points against the Rossoneri, and believes his spell at Espanyol has helped him improve
The Nerazzurri won the last Serie A encounter against their city-rivals 4-2 back in May, and the Brazilian is hopeful of recording another victory at the weekend.
"The derby's always a difficult game, hopefully we'll be able to keep up the form we've shown in the last few games and get another win," Coutinho told reporters.
"I don't know whether I will start against AC Milan. I hope so, but it's up to the coach to make the final decision."
The youngster then looked back on his loan spell at Espanyol in the second half of the 2011-12 campaign, and insisted his time in La Liga has made him a better player.
"Going to Spain has definitely benefited me and then coming back and finding a coach like [Andrea] Stramaccioni gives us all confidence."
The 20-year-old Coutinho has netted three goals in 10 official appearances for Inter this term.