This self-directed learning module highlights the definitions and diag
nosis of acute, subacute, and chronic pain, As part of the chapter on
pain in the Self-Directed Physiatric Education Program for practitione
rs and trainees in physical medicine and rehabilitation, this article
contains sections on defining acute, subacute, and chronic pain, subty
pe diagnoses, differentiation of pain generators, cost-effectiveness o
f diagnostic testing, and the minimum data set necessary prior to trea
tment. (C) 1998 by the American Academy of Physical Medicine and Rehab
ilitation.