Measurement of spirometry: (a) that includes continuous measurement of the relationship between flow and volume during expiration or during expiration and inspiration, performed before and after inhalation of a bronchodilator; and (b) fractional exhaled nitric oxide (FeNO) concentration in exhaled breath; if: (c) the measurement is performed: (i) under the supervision of a specialist or consultant physician; and (ii) with continuous attendance by a respiratory scientist; and (iii) in a respiratory laboratory equipped to perform complex lung function tests; and (d) a permanently recorded tracing and written report is provided; and (e) 3 or more spirometry recordings are performed unless difficult to achieve for clinical reasons; each occasion at which one or more such tests are performed Not applicable to a service associated with a service to which item 11503 or 11512 applies