(a) Definitions. The following words and terms, when
used in this chapter, shall have the following meanings, unless the
context clearly indicates otherwise:
  (1) Board--The Texas Board of Chiropractic Examiners.
  (2) CPT Codebook--The American Medical Association's
annual Current Procedural Terminology Codebook (2004). The CPT Codebook
has been adopted by the Centers for Medicare and Medicaid Services
of the United States Department of Health and Human Services as Level
I of the common procedure coding system.
  (3) Cosmetic treatment--A treatment that is primarily
intended by the licensee to address the outward appearance of a patient.

  (4) Incision--A cut or a surgical wound; also, a division
of the soft parts made with a knife or hot laser.
  (5) Musculoskeletal system--The system of muscles and
tendons and ligaments and bones and joints and associated tissues
and nerves that move the body and maintain its form.
  (6) On-site--The presence of a licensed chiropractor
in the clinic, but not necessarily in the room, while a patient is
undergoing an examination or treatment procedure or service.
  (7) Practice of chiropractic--The description and terms
set forth under Texas Occupations Code §201.002, relating to
the practice of chiropractic.
  (8) Subluxation--A lesion or dysfunction in a joint
or motion segment in which alignment, movement integrity and/or physiological
function are altered, although contact between joint surfaces remains
intact. It is essentially a functional entity, which may influence
biomechanical and neural integrity.
  (9) Subluxation complex--A neuromusculoskeletal condition
that involves an aberrant relationship between two adjacent articular
structures that may have functional or pathological sequelae, causing
an alteration in the biomechanical and/or neuro-physiological reflections
of these articular structures, their proximal structures, and/or other
body systems that may be directly or indirectly affected by them.