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.

Dysthymic Disorder


Related Terms

  • Dysthymia
  • Neurotic Depression
  • Reactive Depression

Differential Diagnosis

  • Major depression
  • Mood disorder due to general medical condition
  • Personality disorders
  • Substance-induced mood disorder

Specialists

  • Clinical Psychologist
  • Internal Medicine Physician
  • Psychiatrist

Comorbid Conditions

  • Anxiety disorders
  • Major depression
  • Personality disorder
  • Post-traumatic stress disorder

Factors Influencing Duration

Length of disability may be influenced by severity of symptoms (i.e., sleep disturbance) or the degree of psychomotor retardation (slowing of physical and mental processes) and job requirements. A suicide attempt may lengthen disability due to necessary medical treatment and the need for further psychological assessment. Emotionally stressful job duties may increase length of disability. Symptoms may interfere with optimal work performance.

Medical Codes

ICD-9-CM:
300.4 - Dysthymic Disorder; Anxiety Depression, Depression with Anxiety, Depressive Reaction, Neurotic Depressive State, Reactive Depression

Overview

Dysthymic disorder is a chronic, low-grade depression. When the disorder begins in adulthood, it may be triggered by a major life transition such as the birth of a first child, bereavement, or job loss. Dysthymia can be related to personal stressors such as personality conflicts or relationship difficulties in some situations.

Individuals with dysthymia have persistent symptoms including a low mood, fatigue, hopelessness, difficulty concentrating, and problems with sleep and appetite. These symptoms persist most of the day and last over a period of 2 or more years. Individuals may have symptom-free periods but these seldom last longer than 2 consecutive months. The symptoms are generally milder but longer lasting than those of a major depressive episode.

Diagnosis is based on criteria listed in the DSM-IV-TR (Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision). If the symptoms are associated with another psychiatric impairment such as major depression, schizophrenia, manic episodes, or organic psychosis, a diagnosis of dysthymia does not apply. For example, if chronic depressive symptoms include a major depressive episode during the first 2 years, then the diagnosis is major depression rather than dysthymic disorder. However, after the first 2 years of chronic depression, major depressive episodes may be superimposed on the dysthmic disorder, such that both diagnoses apply (double depression).

Incidence and Prevalence: In the course of their lifetime, about 5% to 6% of adults have dysthymic disorder. Point prevalence of the disorder is about 3% (DSM-IV-TR 379).

Source: Medical Disability Advisor






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