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.

Huntington's Chorea


Related Terms

  • Huntington's Disease

Differential Diagnosis

Specialists

  • Neurologist
  • Physiatrist (Physical Medicine and Rehabilitation Specialist)

Comorbid Conditions

  • Neurological or psychiatric disorders

Factors Influencing Duration

Duration depends on severity of manifestations. This condition progresses to permanent disability.

Medical Codes

ICD-9-CM:
333.4 - Huntingtons Chorea

Failure to Recover

If an individual fails to recover within the expected maximum duration period, the reader may wish to consider the following questions to better understand the specifics of an individual's medical case.

Regarding diagnosis:

  • Does individual have a family history of the disease?
  • Does individual report mood swings, irritability, depression, apathy, or anger?
  • Does individual report impairment of memory, judgment, and other cognitive functions?
  • Does individual have suicidal ideation?
  • Does individual have uncontrolled dance-like jerking movements (chorea) in the fingers, feet, face, and trunk? Do they resemble piano-playing movements of the fingers, facial grimaces, or a dancing gait?
  • Does individual have clumsiness and problems with balance and coordination?
  • Is individual's condition deteriorating? Is individual able to perform self-care tasks?
  • On physical exam, were rapid eye movements, periodic twitching in the face and extremities present? Have these become more pronounced?
  • Does individual have an unsteady gait?
  • Is it hard to understand individual's speech?
  • Does individual have difficulty swallowing?
  • Has individual had DNA analysis? Neurochemical testing?
  • Has individual had a CT scan and MRI?
  • Have conditions with similar symptoms been ruled out?

Regarding treatment:

  • Is individual receiving symptomatic treatment?
  • Is individual being treated with antipsychotic drugs for the abnormal movements and mental disturbances? Serotonin reuptake inhibitors? Tranquilizers? The dopamine-depleting agent tetrabenazine?
  • Have individual's children been offered genetic counseling?
  • Has individual received psychological counseling?

Regarding prognosis:

  • Does individual exercise regularly?
  • If individual is able to work, is their employer able to accommodate any necessary restrictions?
  • Does individual have any conditions that may affect the course of the disease? Does individual have any complications such as dementia, severe depression, suicidal ideation, inability to walk, or weight loss?

Source: Medical Disability Advisor






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