AMA CPT® Assistant - 2013 Issue 5 (May)
THEN and NOW: Plethysmography (94726) (May 2013)
May 2013 page 11 CPT Assistant THEN and NOW As medical terminology and the performance of services and procedures change, so do the associated reporting methods. In this feature, we will regularly revisit previously published articles to correct, revise, update, and/or reiterate long- standing information. Plethysmography (94726) The March 1999 (p 10) and September 2003 (p 15) editions of CPT Assistant contained Coding Consultation Questions and Answers pertaining to the reporting of CPT codes 93720-93722 for total body plethysmography. CPT codes 93720-93722 were unbundled services that separately identified total body plethysmography with interpretation and report (93720), the tracing only...
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Article Overview
This CPT Assistant Then and Now article explains the evolution of plethysmography reporting for pulmonary diagnostic testing. It is intended for coders, billers, and clinical documentation staff who need to understand the historical context of the procedure, the later consolidated code structure, and the related guidance around pulmonary function testing services.
Why This Topic Matters
Plethysmography coding changed over time, and this article helps readers recognize the shift from older separate reporting to later consolidated reporting within pulmonary diagnostic testing. That context can support accurate record review, code selection, and interpretation of legacy references in older documentation.
Article Sections
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May 2013 page 11
Introductory CPT Assistant context describing the purpose of the Then and Now feature and the general topic of updating older reporting guidance.
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Then
Background on earlier plethysmography reporting questions and the types of services discussed in the prior CPT Assistant material, including pulmonary testing and related measurement concepts.
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Now
Updated discussion of the later consolidated approach to plethysmography reporting and related pulmonary diagnostic testing guidance, including component-based reporting references and associated pulmonary testing subjects.
What You Will Learn
- How plethysmography reporting guidance changed over time
- Which broader pulmonary diagnostic testing topics are addressed
- How legacy references to older plethysmography reporting are framed
- What related pulmonary testing subjects are discussed alongside the updated code structure
Who Should Read This
- Medical coders
- Coding auditors
- Billing staff
- Clinical documentation staff
- Pulmonary practice administrators
Codes Discussed
Code Ranges Discussed
Modifiers Discussed
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