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Chronic lung disease

Date: May 2011

Definition:

Confirmation by a Consultant Physician of chronic lung disease resulting in all of the following:

  • the need for continuous daily oxygen therapy on a permanent basis;
  • FEV1 being less than 40% of normal; and
  • vital capacity less than 50% of normal.

No change since April 2007

 

Definition update history:

Chronic lung disease May 2011
Chronic lung disease July 2009
Chronic lung disease April 2007

What does this mean?

Chronic lung disease can be caused by a number of conditions such as severe chronic bronchitis and emphysema and lung fibrosis. It is associated with persistent breathlessness at rest, or on minimal exertion, requiring daily oxygen therapy.

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