Section 6551 - Definition of practice of chiropractic1. The practice of the profession of chiropractic is defined as detecting and correcting by manual or mechanical means structural imbalance, distortion, or subluxations in the human body for the purpose of removing nerve interference and the effects thereof, where such interference is the result of or related to distortion, misalignment or subluxation of or in the vertebral column.2.a. A license to practice as a chiropractor shall not permit the holder thereof to use radio-therapy, fluoroscopy, or any form of ionizing radiation except X-ray which shall be used for the detection of structural imbalance, distortion, or subluxations in the human body.b. The requirements and limitations with respect to the use of X-ray by chiropractors shall be enforced by the state commissioner of health and he is authorized to promulgate rules and regulations after conferring with the board to carry out the purposes of this subdivision.c. Chiropractors shall retain for a period of three years all X-ray films taken in the course of their practice, together with the records pertaining thereto, and shall make such films and records available to the state commissioner of health or his representative on demand.3. A license to practice chiropractic shall not permit the holder thereof to treat for any infectious diseases such as pneumonia, any communicable diseases listed in the sanitary code of the state of New York, any of the cardio-vascular-renal or cardio-pulmonary diseases, any surgical condition of the abdomen such as acute appendicitis, or diabetes, or any benign or malignant neoplasms; to operate; to reduce fractures or dislocations; to prescribe, administer, dispense or use in his practice drugs or medicines; or to use diagnostic or therapeutic methods involving chemical or biological means except diagnostic services performed by clinical laboratories which services shall be approved by the board as appropriate to the practice of chiropractic; or to utilize electrical devices except those devices approved by the board as being appropriate to the practice of chiropractic. Nothing herein shall be construed to prohibit a licensed chiropractor who has successfully completed a registered doctoral program in chiropractic, which contains courses of study in nutrition satisfactory to the department, from using nutritional counseling, including the dispensing of food concentrates, food extracts, vitamins, minerals, and other nutritional supplements approved by the board as being appropriate to, and as a part of, his or her practice of chiropractic. Nothing herein shall be construed to prohibit an individual who is not subject to regulation in this state as a licensed chiropractor from engaging in nutritional counseling.