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The CPT® Code 94680 refers to a specific pulmonary function test that measures oxygen uptake through expired gas analysis during both rest and exercise. This procedure is essential for evaluating how effectively the lungs are able to absorb oxygen during different states of physical activity. The test begins with the patient at rest, where they inhale room air through a one-way valve and exhale into an airtight container. This setup allows for the collection of expired gases, which are then analyzed using an electronic gas analyzer. The analysis focuses on determining the concentrations of oxygen (O2) and carbon dioxide (CO2) in the exhaled air. Following the initial assessment at rest, the procedure is repeated while the patient is exercising, enabling a comparison of the relative concentrations of O2 and CO2 between the two states. The results of this analysis are crucial for physicians, who will compile a written report detailing the findings, which can inform further clinical decisions regarding the patient's respiratory health. This code is distinct from related codes such as 94681, which includes additional measurements, and 94690, which involves indirect methods of assessing oxygen uptake.
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The procedure associated with CPT® Code 94680 is indicated for various clinical scenarios where assessment of pulmonary function is necessary. The following conditions may warrant the use of this test:
The procedure for CPT® Code 94680 involves several key steps that are performed in a structured manner to ensure accurate measurement of oxygen uptake. The following outlines the procedural steps:
Post-procedure care for patients undergoing the CPT® Code 94680 test typically involves monitoring the patient for any immediate reactions to the exercise component of the test. Patients may be advised to rest and hydrate after the procedure, especially if they have engaged in significant physical activity. The physician will review the results of the test with the patient, discussing any implications for their respiratory health and potential next steps in management or treatment based on the findings. It is also important for the physician to ensure that the patient understands the results and any recommended follow-up actions.
| Short Descr | EXHALED AIR ANALYSIS O2 | Medium Descr | O2 UPTK EXP GAS ANALYSIS REST&XERS DIRECT SIMP | Long Descr | Oxygen uptake, expired gas analysis; rest and exercise, direct, simple | Status Code | Active Code | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 1 - Diagnostic Tests for Radiology Services | Multiple Procedures (51) | 0 - No payment adjustment rules for multiple procedures apply. | Bilateral Surgery (50) | 0 - 150% payment adjustment for bilateral procedures does NOT apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 0 - Payment restriction for assistants at surgery applies to this procedure... | Co-Surgeons (62) | 0 - Co-surgeons not permitted for this procedure. | Team Surgery (66) | 0 - Team surgeons not permitted for this procedure. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | STV-Packaged Codes | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T2D - Other tests - other | MUE | 1 | CCS Clinical Classification | 233 - Laboratory - Chemistry and Hematology |
| 26 | Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number. | 59 | Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25. | 76 | Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service. | CR | Catastrophe/disaster related | GA | Waiver of liability statement issued as required by payer policy, individual case | GC | This service has been performed in part by a resident under the direction of a teaching physician | GV | Attending physician not employed or paid under arrangement by the patient's hospice provider | GZ | Item or service expected to be denied as not reasonable and necessary | TC | Technical component; under certain circumstances, a charge may be made for the technical component alone; under those circumstances the technical component charge is identified by adding modifier 'tc' to the usual procedure number; technical component charges are institutional charges and not billed separately by physicians; however, portable x-ray suppliers only bill for technical component and should utilize modifier tc; the charge data from portable x-ray suppliers will then be used to build customary and prevailing profiles | XE | Separate encounter, a service that is distinct because it occurred during a separate encounter | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service |
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| 2013-01-01 | Changed | Medium Descriptor changed. |
| 2011-01-01 | Changed | Short description changed. |
| Pre-1990 | Added | Code added. |
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