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Chromatography is a sophisticated laboratory technique employed to separate and analyze chemical components within a mixture. This method utilizes two distinct phases: a stationary phase, which remains fixed in place, and a mobile phase, which moves through the stationary phase. In the context of column chromatography, the stationary phase is established by applying a thin layer of liquid or polymer that contains the test sample onto a solid, inert support material. This support is then inserted into a column, typically made of glass or metal, and sealed to create a controlled environment for the separation process. The column may be subjected to heat through an oven or other heating device to maintain optimal temperature conditions during the analysis. The mobile phase, which can be either a gas or liquid solvent, is introduced into the column, facilitating the movement of the sample components, known as analytes. As the mobile phase travels through the stationary phase, the analytes separate based on their polarity and affinity for the stationary phase, which influences how far each component migrates with the solvent. This separation allows for the quantification of multiple analytes within a single sample, as indicated by CPT® Code 82492. This code specifically refers to the quantitative analysis of multiple analytes using a single stationary and mobile phase, distinguishing it from CPT® Code 82491, which is designated for the quantification of a single analyte. Examples of analytes that can be quantified using Code 82492 include parathion, ketamine, and fractionated porphyrins, showcasing the versatility and application of chromatography in laboratory settings.
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Chromatography, particularly the quantitative column method, is indicated for the analysis of various chemical substances within biological samples. The following conditions and substances may warrant the use of this procedure:
The procedure for quantitative column chromatography involves several critical steps to ensure accurate separation and quantification of analytes. The following outlines the procedural steps:
Post-procedure care for chromatography typically involves the proper disposal of any hazardous materials used during the analysis, as well as cleaning and maintenance of the chromatography equipment. It is essential to ensure that the column and associated apparatus are thoroughly cleaned to prevent cross-contamination in future analyses. Additionally, the results obtained from the chromatography process should be documented accurately, including the concentrations of the analytes quantified. This documentation is crucial for compliance and for any subsequent analysis or reporting that may be required.
| Short Descr | CHROMOTOGRAPHY QUANT MULT | Medium Descr | CHROMATOGRAPHY QUAN COLUMN MULTIPLE ANALYTES | Long Descr | Chromatography, quantitative, column (eg, gas liquid or HPLC); multiple analytes, single stationary and mobile phase | Status Code | Statutory Exclusion (from MPFS, may be paid under other methodologies) | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 9 - Not Applicable | Multiple Procedures (51) | 9 - Concept does not apply. | Bilateral Surgery (50) | 9 - Concept does not apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 9 - Concept does not apply. | Co-Surgeons (62) | 9 - Concept does not apply. | Team Surgery (66) | 9 - Concept does not apply. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | Items and Services Packaged into APC Rates | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T1H - Lab tests - other (non-Medicare fee schedule) | MUE | Not applicable/unspecified. | CCS Clinical Classification | 233 - Laboratory - Chemistry and Hematology |
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| 2016-01-01 | Deleted | Code deleted, to report see specific analyte code, or 82542 |
| 2011-01-01 | Changed | Short description changed. |
| 1999-01-01 | Added | First appearance in code book in 1999. |
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