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.

Hypothyroidism


Related Terms

  • Myxedema
  • Thyroid Insufficiency
  • Underactive Thyroid Gland

Differential Diagnosis

Specialists

  • Endocrinologist
  • Family Physician

Comorbid Conditions

  • Immune system disorders
  • Infection
  • Pre-existing heart condition

Factors Influencing Duration

Factors include the severity of symptoms, presence of complications, and the individual's response to treatment. Symptoms can recur as the underlying disease progresses.

Medical Codes

ICD-9-CM:
244.0 - Acquired Hypothyroidism; Postsurgical Hypothyroidism
244.1 - Acquired Hypothyroidism; Other Postablative Hypothyroidism; Hypothyroidism following Therapy, Such as Irradiation
244.2 - Acquired Hypothyroidism; Iodine Hypothyroidism; Hypothyroidism Resulting from Administration or Ingestion of Iodide
244.3 - Acquired Hypothyroidism; Other Iatrogenic Hypothyroidism; Hypothyroidism Resulting from: P-aminosalicylic Acid [PAS], Phenylbutazone, Resorcinol, Iatrogenic Hypothyroidism NOS
244.8 - Acquired Hypothyroidism; Other Specified Acquired Hypothyroidism; Secondary Hypothyroidism NEC
244.9 - Acquired Hypothyroidism; Unspecified Hypothyroidism; Hypothyroidism, Primary or NOS; Myxedema, Primary or NOS

Overview

Hypothyroidism is the underproduction of hormones by a gland in the neck called the thyroid gland, which is located in the front of the neck, near the "Adam's apple." Its function is to produce hormones (thyroid hormones) that are responsible for regulating the body's metabolism. When the thyroid does not produce sufficient levels of thyroid hormones, many body systems are affected. The body systems essentially slow down.

There are several causes of hypothyroidism. This condition can result when the thyroid gland itself becomes damaged or diseased (e.g., Hashimoto's thyroiditis), which is the most common cause; after surgical removal of the thyroid; or after treatment of an overactive thyroid (hyperthyroidism). Hypothyroidism can also result when another hormone-producing gland (the pituitary gland) or a part of the brain (hypothalamus) fails to stimulate the activity of the thyroid. Sometimes, hypothyroidism is due to a lack of iodine in the diet, although this has become increasingly rare with the availability of iodine-supplemented salt (iodized salt). Autoimmune diseases may be associated with hypothyroidism such as celiac disease.

Incidence and Prevalence: Hypothyroidism is the most common type of thyroid disorder, far more common than overactive thyroid (hyperthyroidism).

Source: Medical Disability Advisor






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