International Labour Organization (ISCO) defines physiotherapy as
3226 PHYSIOTHERAPISTS AND RELATED ASSOCIATE PROFESSIONALS
Physiotherapists and related associate professionals treat disorders of bones, muscles and parts of the circulatory or the nervous system by manipulative methods, and ultrasound, heating, laser or similar techniques, or apply physiotherapy and related therapies as part of the treatment for the physically disabled, mentally ill or unbalanced.
Tasks include -
(a) advising communities and individuals on correct body postures, for work or otherwise, to avoid injuries and strain and to strengthen muscles;
(b) conducting examinations to make diagnoses of disorders of bones, muscles and parts of the circulatory or the nervous system to determine proper treatment or refer to Medical doctors, if necessary;
(c) treating disorders of bones, muscles and parts of the circulatory or the nervous system by manipulative methods, and the use of ultrasound, heating, laser or similar techniques;
(d) massaging client or patient to improve circulation, soothe or stimulate nerves, facilitate elimination of waste matter, stretch contracted tendons and produce other therapeutic effects;
(e) examining body deformities and disorders to determine and write specifications for artificial limbs or other appliances, helping to fit them and explaining their use;
(f) applying physiotherapy and related techniques as part of the treatment of the mentally ill or unbalanced;
(g) performing related tasks;
(h) supervising other workers.
Examples of the occupations classified here:
Chiropractor
Physiotherapist
Podiatrist
Source:
http://www.ilo.org/public/english/bureau/stat/isco/isco88/3226.htm