"conceptual issue" is correct and usable in written English and the phrase can be used when referring to a philosophical or abstract problem.
For example, "This essay will discuss the various conceptual issues surrounding the development of sustainable energy."
Part of the problem goes back to the conceptual issue that Terry Jones identified back in 2002: If you go to war with "terrorism" or "terror," how will you know when you've won?
A major conceptual issue is how the re-routing takes place naturally within the amygdala, allowing the shift from freezing to active coping and thereby preventing pathological avoidance and allowing proactive avoidance and agency.
"What's interesting is that these protests were not over a practical issue but over a conceptual issue," Hung Huang, a news media and fashion entrepreneur, said in a telephone interview.
The more interesting conceptual issue is which operations should be considered as finitary.
Beneficence has played a major role in a central conceptual issue about the nature and goals of medicine as a social practice.
Consequently, although the following discussion will try to separate the two questions, addressing first the conceptual issue and only later the normative, the division is only didactic.
Besides the quality problem, there are conceptual issues.
The current exhibition neatly sidesteps these thorny conceptual issues, but stumbles into others.
However, setting aside the practical challenges, there are three major conceptual issues.
We know from experience that it is not as well-equipped to address long-term, conceptual issues.
"Unfortunately, Churchland... approaches many conceptual issues in the sciences of the mind like the more antiphilosophical of scientists".
