CPT Code 94010 for Standard PFTs
CPT code 94010 is NOT the code for a complete standard pulmonary function test (PFT)—it specifically covers only simple spirometry without bronchodilator administration. 1, 2
What CPT 94010 Actually Covers
94010 is limited to basic spirometry measurements (FEV1, FVC, FEV1/FVC ratio) performed without any bronchodilator challenge. 1, 2
This code does not include the interpretation and report—that requires a separate code (94060). 1, 2
The American Heart Association explicitly states that 94010 covers the technical component of simple spirometry only, not a comprehensive PFT. 1
Codes for Complete PFT Testing
A standard comprehensive PFT typically requires multiple CPT codes depending on components performed:
Spirometry codes:
Additional testing components:
Common Coding Pitfall
The most frequent error is billing 94010 alone when a complete PFT battery is performed. 2 This results in significant undercoding and improper reimbursement. 2
When spirometry is part of a larger PFT panel, the Correct Coding Initiative may bundle 94010 with other pulmonary testing codes (94620,94621). 1, 2
Each component of a comprehensive PFT must be documented separately with appropriate medical necessity using ICD diagnostic codes. 1, 2
Documentation Requirements
Specific documentation in the medical record is mandatory to support each billed code and demonstrate medical necessity. 1, 2
Quality control measures must be documented, including acceptability and reproducibility of spirometry maneuvers. 1, 3
For 94010, at least three acceptable spirometry efforts meeting reproducibility criteria should be documented. 1, 4