I am attempting to write a PICO Question and paper with evidence that supports that question. Am I supposed to just talk about the population,

I am attempting to write a PICO Question and paper with evidence that supports that question. Am I supposed to just talk about the population, intervention, control/comparison, outcome? The question I came up with is, Does Education on Diet, Exercise, and Medication Management Decrease Readmission to the Hospital for Exacerbation of Heart Failure? can you tell if this question is ok or if it needs revision.