From an economics standpoint, inflation is an increase in the money supply.

What we see in our everyday lives is sometimes called "price inflation", i.e. prices rising, and that can happen disproportionally.

As a US-centric example, computer prices have been gradually decreasing, while healthcare and housing costs have skyrocketed.

So an increase in the supply of money is separate from an increase in "a concentration" of money in a "market area" like healthcare, and productivity and material costs and whatever else factors into prices at any given time.

Of course, an increase in the supply of money factors into prices where ever the money goes.