OBJECTIVES: Neck pain is  a common musculoskeletal disorder, affecting a third of all adults each year. Neurological impairments exist in a severe subset of patients. These may be detected by sensory detection responses.  Current Perception Threshold (CPT) testing may provide such testing but there is inadequate evidence on the clinical measurement properties of CPT testing in Mechanical Neck Disorder (MND). Therefore, the objective of this study is to evaluate the reliability and validity of CPT test in patients with MND. METHODS: The Study Design was a cross-sectional reliability and validity assessment. Patients with MND (N=106) were recruited after a standardized physical assessment performed by an experienced  physiotherapist to establish that neck pain was related to mechanical dysfunction.  The rapid  CPT protocol was performed at three frequencies (5, 250, 2000 Hz) using 3 dermatomal locations on the hand. A subset of patients (N=34) was reassessed at a second visit to determine the test-retest reliability. For inter-trial reliability the fingertip of both hands  was assessed. Internal consistencies of CPT  between frequencies were calculated from CPT test scores in the most affected hand. Construct validity of CPT was evaluated by correlating the 3 composite scores derived the from the CPT tests with the Neck Disability Index NDI and Cervical Spine Outcomes Questionnaire (COSQ). RESULTS: Inter-trial reliability was good to excellent (ICC= 0.73-0.82, p<0.001). Internal consistency was satisfactory (α = 0.84-0.90, p<0.001).  Test-retest reliability  of CPT scores was excellent (ICC = 0.76-0.84, p<0.001). The mean retest difference and the 95% limits of agreement were: -0.3 ± 3 (in 2000Hz and 250Hz), and  0.1 ± 3.9 (in 5Hz). A small to medium-size correlation was found between CPT and NDI or CSOQ (r = 0.21-0.37). CONCLUSIONS: CPT was consistent across occasions; and  was associated with neck disability.