ICD-10 Diagnosis Code J84.9

Interstitial pulmonary disease, unspecified

Diagnosis Code J84.9

ICD-10: J84.9
Short Description: Interstitial pulmonary disease, unspecified
Long Description: Interstitial pulmonary disease, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code J84.9

Code Classification
  • Diseases of the respiratory system
    • Other respiratory diseases principally affecting the interstitium (J80-J84)
      • Other interstitial pulmonary diseases (J84)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code J84.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 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.

  • Chronic interstitial lung disease
  • Interstitial lung disease
  • Interstitial lung disease due to collagen vascular disease
  • Interstitial lung disease due to connective tissue disease
  • Interstitial pneumonia
  • Lung disease due to connective tissue disorder
  • Nonspecific interstitial pneumonia
  • Pulmonary hypertension due to interstitial lung disease
  • Pulmonary hypertension due to lung disease and/or hypoxia
  • Pulmonary hypertension due to pulmonary disease with mixed restrictive and obstructive pattern

Index of Diseases and Injuries
References found for the code J84.9 in the Index of Diseases and Injuries:

Information for Patients

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.

  • Hypersensitivity pneumonitis
  • Interstitial lung disease
  • Interstitial lung disease - adults - discharge
  • Pulmonary function tests

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