Evaluation and Management (E/M) categories are used in medical coding to determine the level of complexity and time spent on patient care. These categories are divided into different levels based on factors such as history taking, examination, medical decision-making, and time spent with the patient. Properly selecting the correct E/M category is important for accurate billing and reimbursement.
The categories of the electromagnetic (EM) spectrum, in the ascending order of their frequencies are:RadioMicrowaveInfraredVisibleUltravioletX-rayGammaHence, Radio waves have the lowest frequency and the longest wavelengths while Gamma rays have the highest frequency and the shortest wavelengths.(check related link for an image)
There are hundreds if not thousands of different categories for EM radiation that extend through history. From the broad: radio, microwave, infrared, visible, UV, X-ray, gamma, the modifiers "short wave" and "long wave"... to the specific colors of each line/ wavelength / frequency, to the characteristic spectra of the elements and / or chemical compounds.
No. In fact, when people try to carve up the EM spectrum into categories and typesand classifications and then name each part, they usually wind up giving the name"radio waves" to the part with the longestwavelengths.
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