Oregon Administrative Rules › Chapter 436 - DEPARTMENT OF CONSUMER AND BUSINESS SERVICES, WORKERS' COMPENSATION DIVISION › Division 35 - DISABILITY RATING STANDARDS › Section 436-035-0380 - Cardiovascular System

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Impairments
			 of the cardiovascular system are determined based on objective findings that
			 result in the following conditions: valvular heart disease, coronary heart
			 disease, hypertensive cardiovascular disease, cardiomyopathies, pericardial
			 disease, or cardiac arrhythmias. Each of these conditions will be described and
			 quantified. In most circumstances, the physician should observe the patient
			 during exercise testing.
(2)
			 Valvular Heart Disease: Impairment resulting from work related valvular heart
			 disease is rated according to the following classes:
(a) Class 1 (5% Impairment) The worker has
			 evidence by physical examination or laboratory studies of valvular heart
			 disease, but no symptoms in the performance of ordinary daily activities or
			 even upon moderately heavy exertion; and The worker does not require continuous
			 treatment, although prophylactic antibiotics may be recommended at the time of
			 a surgical procedure to reduce the risk of bacterial endocarditis; and The
			 worker remains free of signs of congestive heart failure; and There are no
			 signs of ventricular hypertrophy or dilation, and the severity of the stenosis
			 or regurgitation is estimated to be mild; or In the worker who has recovered
			 from valvular heart surgery, all of the above criteria are met.
(b) Class 2 (20% Impairment) The worker has
			 evidence by physical examination or laboratory studies of valvular heart
			 disease, and there are no symptoms in the performance of ordinary daily
			 activities, but symptoms develop on moderately heavy physical exertion;
			 or
(c) The worker requires moderate
			 dietary adjustment or drugs to prevent symptoms or to remain free of the signs
			 of congestive heart failure or other consequences of valvular heart disease,
			 such as syncope, chest pain and emboli; or
(d) The worker has signs or laboratory
			 evidence of cardiac chamber hypertrophy or dilation, and the severity of the
			 stenosis or regurgitation is estimated to be moderate, and surgical correction
			 is not feasible or advisable; or
(e) The worker has recovered from valvular
			 heart surgery and meets the above criteria.
(f) Class 3 (40% Impairment) The worker has
			 signs of valvular heart disease and has slight to moderate symptomatic
			 discomfort during the performance of ordinary daily activities; and
(g) Dietary therapy or drugs do not
			 completely control symptoms or prevent congestive heart failure; and
(h) The worker has signs or laboratory
			 evidence of cardiac chamber hypertrophy or dilation, the severity of the
			 stenosis or regurgitation is estimated to be moderate or severe, and surgical
			 correction is not feasible; or
(i)
			 The worker has recovered from heart valve surgery but continues to have
			 symptoms and signs of congestive heart failure including
			 cardiomegaly.
(j) Class 4 (78%
			 Impairment) The worker has signs by physical examination of valvular heart
			 disease, and symptoms at rest or in the performance of less than ordinary daily
			 activities; and
(k) Dietary therapy
			 and drugs cannot control symptoms or prevent signs of congestive heart failure;
			 and
(l) The worker has signs or
			 laboratory evidence of cardiac chamber hypertrophy or dilation; and the
			 severity of the stenosis or regurgitation is estimated to be moderate or
			 severe, and surgical correction is not feasible; or
(m) The worker has recovered from valvular
			 heart surgery but continues to have symptoms or signs of congestive heart
			 failure.