ICD-9-CM 501
CMS Source: final ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.FacebookXLinkedInPrint

501 is a legacy ICD-9-CM diagnosis code for asbestosis. It was valid on U.S. claims through September 30, 2015 and cannot be reported for services on or after October 1, 2015, when ICD-10-CM replaced the ICD-9 code set. Under the CMS General Equivalence Mappings, its ICD-10-CM replacement is J61 (Pneumoconiosis due to asbestos and other mineral fibers), flagged as an approximate match. While the code set was active, the Medicare Code Editor applied the adult diagnoses (age 15 through 124) edit to this code.

Code Identity

ICD-9-CM Code
501
Valid for Submission
No — Legacy Code
Code Describes
Asbestosis
Short Description
Asbestosis
Same as the full description in the CMS dataset.
Parent Block
501 Asbestosis
ICD-10-CM Replacement
J61 (approximate)

Convert 501 to ICD-10-CM

Based on the final CMS General Equivalence Mappings (GEMs), 501 crosswalks to the following ICD-10-CM code.

ICD-10-CM
J61 Pneumoconiosis due to asbestos and other mineral fibers
Approximate The match is approximate rather than exact.

Medicare Code Edits

Medicare Code Editor checks that applied to 501 while ICD-9-CM was in use.

Adult diagnoses (age 15 through 124)
Adult diagnoses: Age range is 15–124 years inclusive.

Index of Diseases References

Entries in the final ICD-9-CM Index to Diseases and Injuries that point to 501. Tap the icons for the official index conventions.

  • Amianthosis 501
  • Asbestosis occupational 501
  • Comedocarcinoma M8501 3 SEE ALSO Neoplasm breast malignant
    • noninfiltrating M8501 2
      • specified site see Neoplasm by site in situ
  • Fibrosis fibrotic
    • lung atrophic capillary chronic confluent massive perialveolar peribronchial 515
      • with
        • asbestosis occupational 501
  • Medulloepithelioma M9501 3 SEE ALSO Neoplasm by site malignant
    • teratoid M9502 3 see Neoplasm by site malignant
  • Pneumoconiosis due to inhalation of 505
    • asbestos 501

Information for Patients

Asbestos

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.

Read the full article at MedlinePlus

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.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Questions About 501

Is 501 (asbestosis) still a valid code?

No. This code belonged to ICD-9-CM, which the United States retired after September 30, 2015. Claims with dates of service on or after October 1, 2015 must use ICD-10-CM codes, such as its replacement J61.

What is the ICD-10 replacement for 501?

The General Equivalence Mappings crosswalk this code to ICD-10-CM J61 (Pneumoconiosis due to asbestos and other mineral fibers). The match is flagged as approximate, so confirm it against the clinical documentation before use.

What did 501 mean?

In the final ICD-9-CM release, this code described asbestosis. It sat in block 501 Asbestosis under Diseases of the respiratory system (460–519).

How did the Medicare Code Editor treat 501?

The Medicare Code Editor applied the adult diagnoses (age 15 through 124) edit to this code: Adult diagnoses: Age range is 15–124 years inclusive.