Section 3.374 - Effect of diagnosis of active tuberculosis(a)Service diagnosis. Service department diagnosis of active pulmonary tuberculosis will be accepted unless a board of medical examiners, Clinic Director or Chief, Outpatient Service certifies, after considering all the evidence, including the favoring or opposing tuberculosis and activity, that such diagnosis was incorrect. Doubtful cases may be referred to the Chief Medical Director in Central Office.(b)Department of Veterans Affairs diagnosis. Diagnosis of active pulmonary tuberculosis by the medical authorities of the Department of Veterans Affairs as the result of examination, observation, or treatment will be accepted for rating purposes. Reference to the Clinic Director or Chief, Outpatient Service, will be in order in questionable cases and, if necessary, to the Chief Medical Director in Central Office.(c)Private physician's diagnosis. Diagnosis of active pulmonary tuberculosis by private physicians on the basis of their examination, observation or treatment will not be accepted to show the disease was initially manifested after discharge from active service unless confirmed by acceptable clinical, X-ray or laboratory studies, or by findings of active tuberculosis based upon acceptable hospital observation or treatment.26 FR 1591, Feb. 24, 1961, as amended at 27 FR 6387, July 6, 1962; 33 FR 16275, Nov. 6, 1968; 43 FR 45348, Oct. 2, 1978