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Official Description

Chlorinated hydrocarbons, screen

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

A screening test for toxic exposure levels to chlorinated hydrocarbons is performed on biological samples such as blood, urine, or exhaled air from the lungs. Chlorinated hydrocarbons are a class of chemical compounds that consist of carbon, chlorine, and hydrogen atoms. These compounds are commonly utilized in various applications, particularly as insecticides for controlling vectors, which are insects that carry diseases, and as solvents in industrial processes. Examples of chlorinated hydrocarbons include chloroform, carbon tetrachloride, dichloromethane, and tri- or tetrachloroethylene. Occupational exposure to these substances typically occurs through inhalation of vaporous fumes or through direct skin contact. It is important to note that prolonged or excessive exposure to chlorinated hydrocarbons can lead to significant health risks, including damage to the liver and kidneys. This screening test is crucial for monitoring and assessing the levels of these toxic substances in individuals who may be at risk due to their work environment or other exposure scenarios.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The screening test for chlorinated hydrocarbons is indicated for individuals who may have been exposed to these toxic substances, particularly in occupational settings. The following conditions or situations warrant the performance of this test:

  • Occupational Exposure Individuals working in industries where chlorinated hydrocarbons are used, such as manufacturing, pest control, or chemical processing, may require screening to assess their exposure levels.
  • Symptoms of Toxicity Patients presenting with symptoms that may be associated with chlorinated hydrocarbon exposure, such as liver dysfunction or kidney issues, may be tested to determine if these compounds are present in their system.
  • Monitoring Health Risks Regular screening may be necessary for individuals who have a history of exposure to chlorinated hydrocarbons to monitor their health and detect any potential toxic effects early.

2. Procedure

The procedure for screening chlorinated hydrocarbons involves several key steps to ensure accurate testing and results. The following outlines the procedural steps:

  • Sample Collection A biological sample is collected from the patient, which may include blood, urine, or exhaled air. The choice of sample type depends on the specific testing protocol and the suspected level of exposure.
  • Sample Preparation The collected sample is prepared for analysis, which may involve processes such as centrifugation for blood samples or specific handling techniques for urine and exhaled air samples to ensure the integrity of the substances being tested.
  • Laboratory Analysis The prepared samples are then subjected to laboratory analysis using appropriate screening methods, such as gas chromatography or mass spectrometry, to detect and quantify the levels of chlorinated hydrocarbons present in the sample.
  • Result Interpretation Once the analysis is complete, the results are interpreted by qualified laboratory personnel. The findings are then documented and reported, indicating whether the levels of chlorinated hydrocarbons are within normal limits or if they exceed established thresholds.

3. Post-Procedure

After the screening test for chlorinated hydrocarbons, patients may receive guidance based on the results. If elevated levels are detected, further evaluation and potential medical intervention may be necessary to address any health concerns. Patients should be monitored for symptoms related to chlorinated hydrocarbon exposure, and follow-up testing may be recommended to assess changes in exposure levels over time. Additionally, individuals may be advised on reducing exposure to chlorinated hydrocarbons in their environment, particularly if they work in high-risk occupations.

Short Descr TEST FOR CHLOROHYDROCARBONS
Medium Descr CHLORINATED HYDROCARBONS SCREEN
Long Descr Chlorinated hydrocarbons, screen
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
CLIA Waived (QW) No
APC Status Indicator Conditionally packaged laboratory tests
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T1H - Lab tests - other (non-Medicare fee schedule)
MUE 1
CCS Clinical Classification 233 - Laboratory - Chemistry and Hematology
90 Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number.
Date
Action
Notes
2015-01-01 Note AMA Guidelines changed.
Pre-1990 Added Code added.
Code
Description
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