Is deliberate indifference a cause of action for tortfeasor's failure to treat a serious medical condition?

A failure to competently treat a serious medical condition, even if some treatment is prescribed, may constitute deliberate indifference in a particular case. Id. However, it is important to differentiate common law negligence claims of malpractice from claims predicated on violations of the Eight Amendment's prohibition of cruel and unusual punishment. In asserting the latter, "[m]ere 'indifference,' 'negligence,' or 'medical malpractice' will not support this cause of action." Broughton v. Cutter Laboratories, 622 F.2d 458, 460 (9th Cir. 1980) (citing Estelle, 429 U.S. at 105-06).