As used in NRS 639.0082, 639.23507, 639.2391 to 639.23916, inclusive, and NAC 639.823 to 639.838, inclusive, "course of treatment" means all treatment of a patient for a particular disease or symptom of a disease, including, without limitation, a new treatment initiated by any practitioner for a disease or symptom for which the patient was previously receiving treatment.
Nev. Admin. Code § 639.826