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.

Displacement, Lumbar Intervertebral Disc Without Myelopathy


Related Terms

  • Disc Protrusion
  • Disc Rupture
  • Herniated Disc
  • Herniated Nucleus Pulposus (HNP)
  • Lumbar Disc Herniation
  • Lumbar Disc Prolapse

Differential Diagnosis

Specialists

  • Anesthesiologist
  • Neurosurgeon
  • Orthopedic (Orthopaedic) Surgeon
  • Physiatrist (Physical Medicine and Rehabilitation Specialist)
  • Preventive Medicine Specialist
  • Rheumatologist
  • Sports Medicine Physician

Comorbid Conditions

Factors Influencing Duration

Length of disability depends on the location and number of the affected discs, the severity of the disc disease, the nature of any neurological involvement, the presence or absence of objective sensory loss and/or muscle weakness, the duration of these neurological deficits (acute or chronic), the presence of other sources of pain (such as facet joint arthritis and mechanical instability), the type of treatment, and the individual's response to treatment. Individuals who smoke tend to have more delayed recoveries and poor outcome.

First lumbar discectomies have the best prognosis. Repeat surgeries are associated with greater disability and longer duration.

Medical Codes

ICD-9-CM:
722.10 - Lumbar Intervertebral Disc Displacement without Myelopathy; Lumbago or Sciatica Due to Displacement of Intervertebral Disc; Neuritis or Radiculitis Due to Displacement or Rupture of Lumbar Intervertebral Disc

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:

  • Did individual report any trauma or strain to the back just prior to the onset of the pain?
  • Did individual have previous episodes of back pain? How often and how long ago?
  • Does individual have pain in either leg?
  • Does individual have any numbness or pins and needles sensation? Where?
  • Does individual have any problems with bowel or bladder function?
  • Did the exam reveal any abnormalities of individual's normal curvature of the lumbar area of the back or slight hip or knee flexion?
  • Does individual have any gait abnormalities?
  • Does individual have diminished ankle and knee jerk reflexes?
  • Was individual's straight leg raising test positive?
  • Did individual have an MRI or CT myelography? Was herniated disc diagnosis confirmed?
  • Have conditions with similar symptoms been ruled?

Regarding treatment:

  • How did individual respond to conservative treatment?
  • Is individual actively participating in physical therapy and a home exercise program?
  • Has individual been re-evaluated?
  • Is discectomy indicated for individual?
  • Has individual had an epidural corticosteroid injection? Was it successful?
  • If not, is individual a candidate for surgery? If not, has individual been referred to a chronic pain clinic or rehabilitation program?
  • Has surgery been performed? What type of surgery?

Regarding prognosis:

  • Has pain persisted regardless of treatment? Is pain the reason for failure to recover?
  • Has a repeat MRI been performed?
  • Have electrodiagnostic studies been performed?
  • Are there psychological issues delaying recovery?
  • Is individual actively participating in physical therapy and a home exercise program?
  • Is individual obese or pregnant?

Source: Medical Disability Advisor






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