The struggle for acceptance of acupuncture in the U.S. by insurance companies, incl. Workers Comp, and even by MDs/HMOs, has been largely successful, at least to an extent.
Not so with acupressure. Not only because the range of modalities that can be considered acupressure is broad, including Tui Na, Shiatsu, Jin Shin Jyutsu, and many others. But mainly for the lack of studies deemed scientific by the medical establishment.