I've seen/read/experienced this process a lot. My personal theory is that when your hobby becomes a job, you find other hobbies.

One way I've managed to deal with this is by changing what I work on in a fairly frequent cadence. So either within the same company or in different companies, changing your squad/org and working on something totally different kinda satisfies my inner craving for programming. Its not easy or always possible to do so, but I've been lucky so far to be young and single and thus flexible with moving. Not sure how I'll handle this after I'm settled down and stuff.