The phrase "is lumped under" is correct and usable in written English.
You can use it when you want to indicate that something is being classified in a particular group or category. For example: "The study of the history of fashion is often lumped under sociology."
It is lumped under "cutting and slicing machine setters, operators, and tenders," a production category dominated by people slicing paper in mills and printing plants.
The sections are broken down into neighborhoods and regional cuisines pastry shops, Hubei-province specialties, and so on but my favorite detail is this: amid the exhaustive list of regional Chinese offerings and gradations, the entire realm of European and American cuisine is lumped under a single heading: "Western Food".
Such factors can be lumped under the term impairment, mentioned originally as one of the major forms of human inadequacy.
The academics counted eight felony drug charges, four cases of domestic violence and four traffic violations so serious that they were lumped under the heading of reckless endangerment.
From its founding in 1978, the performance space Roulette has served as a crucial home base for a vast, amorphous mass of activity that could collectively be lumped under the imprecise rubric of avant-garde music.
Design is not made by one pair of hands, and the team effort required to restore, redesign, fit out, and rebrand a design museum shouldn't be lumped under the name of one famous, usually male person.
Perhaps different crimes are simply being lumped under one umbrella, but as with the mob assaults on women, including journalists covering protests in Tahrir Square, where sexual opportunism was hard to distinguish from political intimidation, this feels like a new phenomenon.
Charles Cohen, an attorney who works for local developers, wrote him a furious letter demanding an apology to the "California Lutheran University presidents, community volunteers, Little League coaches," and at least one nun who, Cohen believed, had been lumped under the phrase.
At present, symptoms that do not fit neatly into the currently available diagnostic pigeonholes are lumped under a catch-all diagnosis, "Eating Disorder Not Otherwise Specified," a category regarded by many health insurance companies as not severe enough to warrant reimbursement.
Yet, despite their divergent paths, these two movements continue to be lumped under the same term: sharing economy.
It may be because those patients with presumed OM were lumped under migraine with aura category because OM was classified under migraine in the first international classification of headache disorders [33].
