"manageable condition" is correct and usable in written English.
You can use it when a situation or state of being is not ideal, but is not outside of a person's ability to deal with it. For example: "The patient's disease was a manageable condition and relatively easy to treat."
These lie mainly in a limited popular awareness of hypertension as a chronic yet manageable condition, competing health belief models, a shortage of physicians, and poor management of available resources.
Sir James later helped discover cimetidine, which turned peptic ulcers from a potentially life-threatening disease into a far more manageable condition.
Antiretroviral drugs have turned a near-universal killer into a manageable condition, at a cost that has dropped from $15,000 per year to $150.
As science made the AIDS virus a more and more manageable condition, drugs became the focus of private desire and public policy, and the earlier, hard-won focus on prevention was lost.
With HIV a manageable condition (for those in Europe and America) and fewer LGBT people content to fade into middle-aged invisibility, the idea of a queer future seems less and less like the contradiction in terms it once seemed.
Post-traumatic stress is a manageable condition and a natural response to trauma, one that can affect a soldier in war as much as a grandmother in a car crash.
The others, including the defending champion, Carlos Franco, played in more manageable conditions.
Those who teed off early, like Woods and Love, played in manageable conditions that allowed them to make a move.
"Better support for people experiencing mental health problems would help prevent suicides and enable many people to lead full and fulfilling lives with distressing but manageable conditions.
The Labor Department recently started a Web site, America's Heroes at Work, that prods employers into hiring more wounded veterans and explains that post-traumatic stress disorder and traumatic brain injury are manageable conditions and not necessarily long-term.
He insists that Pfizer — the entire industry, for that matter — is on the verge of a new age of drug discovery, one that will turn cancer, diabetes and other debilitating illnesses into manageable conditions.
