26 Oct MBS changes to Respiratory Function Tests
Spirometry is the best standardized, most reproducible and most objective measurement of airflow limitation required for diagnosing COPD and Asthma. Furthermore, spirometry is the gold standard for diagnosing irreversible airway obstruction, however it is often underutilized in primary care.
In an effort to increase the use of spirometry in primary care new MBS changes come in to effect November 1, 2018. The changes see a revision in current testing requirements as well as the addition of new item numbers for both office-based and laboratory-based spirometry, as well as a revision of tests designated as complex lung function test.
The newly created item 11505 applies to general practitioners conducting office-based spirometry. This item attracts a greatly increased rebate fee and is used for diagnosis of COPD, asthma or any other cause of airflow limitation. This form of spirometry must be conducted both before AND after administration of a bronchodilator and requires 3 permanent recordings. This item may be used once per 12 months.
The revised item 11506 also applies to general practitioners and is to be used as means of monitoring airway function. This test has no limit on the number of tests performed, requiring only a permanently recorded trace before AND after bronchodilator administration.
For laboratory-based respiratory testing, the newly created 11507 reflects the importance of Fractional Expired Nitric Oxide (FeNO) levels and its role in diagnosing Asthma and airway inflammation. This test is completed along side spirometry by respiratory scientists and requires specific testing standards to be met.
The changes also bring clearer definitions pertaining to complex lung function test which are commonly performed by TSGQ. These tests include measurements of pulmonary resistance, provocation tests, high altitude simulation tests, 6 minute walk tests, lung volumes and diffusing capacity.