CPT® Code 89220

The procedure described by CPT® Code 89220 involves the collection of a sputum specimen using a non-invasive aerosol induced technique. This method is particularly beneficial as it yields sputum samples that are enriched with mucin protein and degraded DNA products from the peripheral airways, which can be more informative than samples obtained through bronchoalveolar lavage. The examination of these sputum samples plays a crucial role in diagnosing various respiratory conditions, including asthma, chronic obstructive pulmonary disease (COPD), malignancies, and infections caused by bacteria, viruses, or fungi. Prior to the procedure, patients may receive pretreatment with albuterol or a similar beta 2-agonist to minimize the risk of bronchospasm during the sputum induction process. The procedure utilizes an ultrasonic nebulizer, which is filled with a suitable solution such as saline, distilled water, glucose water, or a surfactant agent. This nebulizer is connected to the patient through tubing and a mask, allowing the patient to inhale a fine mist that penetrates deep into the lungs. The treatment typically lasts between 5 to 20 minutes, during which the patient may experience coughing that helps to mobilize respiratory secretions, which are then expectorated into a collection cup for further analysis.