Sedentary Work Exerting up to 10 pounds (4.5 kg) of force occasionally and/or a negligible amount of force frequently or constantly to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time, but may involve walking or standing for brief periods of time. Jobs are sedentary if walking and standing are required only occasionally and other sedentary criteria are met.

Light Work Exerting up to 20 pounds (9.1 kg) of force occasionally and/or up to 10 pounds (4.5 kg) of force frequently, and/or negligible amount of force constantly to move objects. Physical demand requirements are in excess of those for Sedentary Work. Light Work usually requires walking or standing to a significant degree. However, if the use of the arm and/or leg controls requires exertion of forces greater than that for Sedentary Work and the worker sits most the time, the job is rated Light Work.

Medium Work Exerting up to 50 (22.7 kg) pounds of force occasionally, and/or up to 25 pounds (11.3 kg) of force frequently, and/or up to 10 pounds (4.5 kg) of forces constantly to move objects.

Heavy Work Exerting up to 100 pounds (45.4 kg) of force occasionally, and/or up to 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Very Heavy Work Exerting in excess of 100 pounds (45.4 kg) of force occasionally, and/or in excess of 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Job Classification

In most duration tables, five job classifications are displayed. These job classifications are based on the amount of physical effort required to perform the work. The classifications correspond to the Strength Factor classifications described in the United States Department of Labor's Dictionary of Occupational Titles. The following definitions are quoted directly from that publication.

Sedentary Work Exerting up to 10 pounds (4.5 kg) of force occasionally and/or a negligible amount of force frequently or constantly to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time, but may involve walking or standing for brief periods of time. Jobs are sedentary if walking and standing are required only occasionally and other sedentary criteria are met.

Light Work Exerting up to 20 pounds (9.1 kg) of force occasionally and/or up to 10 pounds (4.5 kg) of force frequently, and/or negligible amount of force constantly to move objects. Physical demand requirements are in excess of those for Sedentary Work. Light Work usually requires walking or standing to a significant degree. However, if the use of the arm and/or leg controls requires exertion of forces greater than that for Sedentary Work and the worker sits most the time, the job is rated Light Work.

Medium Work Exerting up to 50 (22.7 kg) pounds of force occasionally, and/or up to 25 pounds (11.3 kg) of force frequently, and/or up to 10 pounds (4.5 kg) of forces constantly to move objects.

Heavy Work Exerting up to 100 pounds (45.4 kg) of force occasionally, and/or up to 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Very Heavy Work Exerting in excess of 100 pounds (45.4 kg) of force occasionally, and/or in excess of 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Encephalitis


Related Terms

  • Cerebritis
  • Encephalomyelitis
  • Equine Encephalitis

Differential Diagnosis

Specialists

  • Infectious Disease Internist
  • Neurologist
  • Neurosurgeon

Comorbid Conditions

  • AIDS
  • Immunosuppressive diseases

Factors Influencing Duration

The severity of the inflammation and symptoms, involvement of other nervous system structures, the individual's response to treatment, the presence of complications, and any permanent brain damage may influence length of disability.

Medical Codes

ICD-9-CM:
072.2 - Mumps Encephalitis; Mumps Meningoencephalitis
139.0 - Late Effects of Viral Encephalitis
323.01 - Encephalitis and Encephalomyelitis in Viral Diseases Classified Elsewhere
323.2 - Encephalitis, Myelitis, and Encephalomyelitis in Protozoal Diseases Classified Elsewhere
323.41 - Other Encephalitis and Encephalomyelitis Due to Other Infections Classified Elsewhere
323.51 - Encephalitis and Encephalomyelitis following Immunization Procedures
323.61 - Infectious Acute Disseminated Encephalomyelitis (ADEM)
323.62 - Postinfectious Encephalitis and Encephalomyelitis, Other
323.71 - Toxic Encephalitis and Encephalomyelitis
323.81 - Causes of Encephalitis, Myelitis, and Encephalomyelitis , Other
323.9 - Encephalitis, Unspecified Cause

Overview

Encephalitis is an acute inflammatory disease of the brain. It can be a serious, life-threatening medical condition, but can also be so mild that it is barely noticeable (subclinical).

Its origins (etiology) may be bacterial, viral, or, in some cases, unknown, though most cases are caused by viruses (Gondim). In certain locations, it is not uncommon for the viral source to be mosquito or tick-borne. Other means of viral transmission include ingestion of infected goat's milk and accidental injection or inhalation of the virus.

In urban areas where mosquitoes are less prevalent, the disease is more commonly caused by a group of viruses called enteroviruses, that is, viruses that multiply primarily in the intestinal tract. An increasing number of cases are caused by infection with the human immunodeficiency virus (HIV). Encephalitis can also occur as a secondary complication following viral infections such as measles, chickenpox, rubella, and mumps. In the US, most cases of viral encephalitis are caused by the herpes simplex virus (HSV) (Gondim).

Incidence and Prevalence: It is impossible to determine true incidence, since reporting policies are not standardized or rigorously enforced and incidence varies with the etiology of the encephalitis. In the US, encephalitis is estimated to affect 3.5 to 7.4 out of 100,000 individuals annually; the most frequent type of encephalitis is herpes simplex encephalitis (HSE), affecting 2-4 Americans per million annually and comprising 10% of all cases (Gondim).

Source: Medical Disability Advisor






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