Sleep studies - MBS item (12258)

The following MBS item is included in this clinical category.

12258
Maintenance of wakefulness test for the assessment of the ability to maintain wakefulness in a patient aged 18 years or more, if: (a) a qualified adult sleep medicine practitioner or neurologist determines that testing is necessary to objectively confirm the ability to maintain wakefulness; and (b) an overnight diagnostic assessment of sleep is performed for at least 8 hours, with continuous monitoring and recording, in accordance with current professional guidelines, of the following measures: (i) airflow; (ii) continuous EMG; (iii) anterior tibial EMG; (iv) continuous ECG; (v) continuous EEG; (vi) EOG; (vii) oxygen saturation; (viii) respiratory movement (chest and abdomen); (ix) position; and (c) immediately following the overnight investigation, a daytime investigation is performed where at least 4 wakefulness trials are conducted, during which there is continuous recording of EEG, EMG, EOG and ECG; and (d) a sleep technician is in continuous attendance under the supervision of a qualified adult sleep medicine practitioner; and (e) polygraphic records are: (i) analysed (for assessment of sleep stage, arousals, respiratory events, cardiac abnormalities and limb movements) with manual scoring, or manual correction of computerised scoring in epochs of not more than 1 minute; and (ii) stored for interpretation and preparation of a report; and (f)interpretation and preparation of a permanent report is provided by a qualified adult sleep medicine practitioner with personal direct review of raw data from the original recording of polygraphic data from the patient; and (g) the diagnostic assessment is not provided to the patient on the same occasion that a service described in item 11003, 12203, 12204, 12205, 12208, 12250 or 12254 is provided to the patient Applicable only once in a 12 month period