ICD-9 Diagnosis Code 501


Diagnosis Code 501

ICD-9: 501
Short Description: Asbestosis
Long Description: Asbestosis
This is the 2014 version of the ICD-9-CM diagnosis code 501

Code Classification
  • Diseases of the respiratory system
    • Pneumoconioses and other lung diseases due to external agents (500-508)
      • 501 Asbestosis

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Adult diagnoses (age 15 through 124) Additional informationCallout TooltipAdult diagnoses (age 15 through 124)
Adult diagnoses: Age range is 15–124 years inclusive.

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Index of Diseases and Injuries
References found for the code 501 in the Index of Diseases and Injuries:

Information for Patients


Asbestos is the name of a group of minerals with long, thin fibers. It was once used widely as insulation. It also occurs in the environment. Asbestos fibers are so small you can't see them. If you disturb asbestos, the fibers can float in the air. This makes them easy to inhale, and some may become lodged in the lungs.

If you breathe in high levels of asbestos over a long period of time, the fibers can build up in the lungs. This causes scarring and inflammation, and can affect breathing. Eventually it can lead to diseases such as

  • Asbestosis, or scarring of the lungs that makes it hard to breathe
  • Mesothelioma, a rare cancer that affects the lining of the lungs or abdomen
  • Lung cancer

Lung diseases associated with asbestos usually develop over many years. People who become ill from asbestos are usually exposed on the job over long periods of time. Smoking cigarettes increases the risk.

Agency for Toxic Substances and Disease Registry

  • Asbestosis

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Interstitial Lung Diseases

Interstitial lung disease is the name for a large group of diseases that inflame or scar the lungs. The inflammation and scarring make it hard to get enough oxygen. The scarring is called pulmonary fibrosis.

Breathing in dust or other particles in the air is responsible for some types of interstitial lung diseases. Specific types include

  • Black lung disease among coal miners, from inhaling coal dust
  • Farmer's lung, from inhaling farm dust
  • Asbestosis, from inhaling asbestos fibers
  • Siderosis, from inhaling iron from mines or welding fumes
  • Silicosis, from inhaling silica dust

Other causes include autoimmune diseases or occupational exposures to molds, gases, or fumes. Some types of interstitial lung disease have no known cause.

Treatment depends on the type of exposure and the stage of the disease. It may involve medicines, oxygen therapy, or a lung transplant in severe cases.

  • Byssinosis
  • Caplan syndrome
  • Coal worker's pneumoconiosis
  • Histiocytosis
  • Hypersensitivity pneumonitis
  • Industrial bronchitis
  • Interstitial lung disease
  • Interstitial lung disease - adults - discharge
  • Pulmonary function tests
  • Silicosis

[Read More]
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