CPT® Code 0859T

Add-On Code

Noncontact near-infrared spectroscopy (eg, for measurement of deoxyhemoglobin, oxyhemoglobin, and ratio of tissue oxygenation), other than for screening for peripheral arterial disease, image acquisition, interpretation, and report; each additional anatomic site (List separately in addition to code for primary procedure)

Noncontact near-infrared spectroscopy (NIRS) is a sophisticated imaging technique utilized primarily for the assessment of wounds, including diabetic ulcers and the oxygen perfusion of skin flaps. This method employs near-infrared light to evaluate the levels of oxygenated and deoxygenated hemoglobin within the tissue, which is crucial for determining tissue oxygenation and predicting wound healing outcomes. The technology operates on the principle that tissue is relatively transparent to near-infrared light, allowing it to penetrate the skin and reflect differently based on the oxygenation status of the blood. By using a noncontact handheld device, such as SnapshotNIR, healthcare professionals can measure the oxygenation levels in the capillary bed without direct contact with the skin. The device emits six distinct wavelengths of near-infrared light, which are absorbed variably by oxygenated and deoxygenated hemoglobin molecules. The light that is not absorbed is reflected back to the device, where it is recorded and analyzed. The proprietary software associated with the device processes this data to calculate the oxygen saturation levels at each pixel, resulting in a color-coded map that visually represents the oxygenation status alongside the clinical image. This comprehensive analysis culminates in a detailed report that outlines the healing progress of the wound or the viability of the skin flap, thereby aiding in predicting the healing trajectory. The insights gained from this procedure are instrumental in mitigating risks associated with wound healing and enhancing overall patient outcomes.