Drugs and Alcohol Quotes in Neuromancer

How we cite our quotes: (Chapter.Paragraph)

Quote #10

[Case] spent the bulk of his Swiss account on a new pancreas and liver. (24.44)

Ah, the ambiguous ending. It's never fully explained why Case gets a new pancreas and liver. Did he want to take up drug use again or did he just want to be free of the limitations Armitage put on him?