Master 2020 CPT coding for pulmonary diagnostic testing and therapies

Why This Topic Matters

Pulmonary function testing is commonly used to evaluate respiratory symptoms and support diagnosis or progression assessment. Understanding the updated CPT terminology and the related ICD-10-CM diagnostic categories helps coders align testing documentation with respiratory diagnoses.

Article Sections

1. Common types of oscillometry testing

   Introduces the 2020 CPT update affecting pulmonary diagnostic testing terminology and explains the general clinical context for oscillometry-based assessment.

2. IOS testing

   Describes impulse oscillometry as a noninvasive pulmonary function test and places it in the broader context of respiratory evaluation and related testing.

3. FOT testing

   Summarizes forced oscillation technique testing and compares it at a high level with other oscillometry-based approaches used in respiratory assessment.

4. Reporting asthma

   Discusses how respiratory findings and diagnoses are addressed in coding guidance for asthma and COPD-related reporting, including related ICD-10-CM category considerations.

5. Case study

   Presents a clinical documentation scenario used to reinforce coding concepts for pulmonary diagnostic testing and respiratory diagnosis reporting.