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Unlisted molecular pathology procedure

CPT4 code

Name of the Procedure:

Unlisted Molecular Pathology Procedure


An unlisted molecular pathology procedure typically involves a laboratory test that analyzes genetic material (DNA or RNA) to diagnose medical conditions, predict disease risk, or guide treatment decisions. As an unlisted procedure, it does not have a specific code in standard medical coding systems, often because it is highly specialized or newly developed.


The primary purpose of an unlisted molecular pathology procedure is to provide precise genetic information that can be used to diagnose diseases, determine the likelihood of disease development, or tailor treatments to the individual's unique genetic makeup. These tests can be crucial in managing various conditions, including cancers, genetic disorders, and infectious diseases.


  • Unexplained symptoms that may be related to genetic conditions.
  • Family history suggesting a hereditary disease.
  • Need for personalized treatment plans, particularly in oncology.
  • Conditions where standard diagnostic tests are inconclusive.
  • Prenatal evaluation for genetic abnormalities.


  • Patients may need to provide a blood sample, saliva sample, or tissue biopsy.
  • They should inform their healthcare provider of any medications they are taking.
  • Fasting is generally not required unless specified for certain tests.
  • Patients may need to undergo preliminary diagnostic assessments or genetic counseling.

Procedure Description

  1. Sample Collection: Blood, saliva, or tissue biopsy sample is collected.
  2. DNA/RNA Extraction: The genetic material is extracted from the sample in a laboratory setting.
  3. Amplification and Sequencing: Techniques such as Polymerase Chain Reaction (PCR) or next-generation sequencing (NGS) are used to amplify and sequence the DNA/RNA.
  4. Data Analysis: Advanced software and bioinformatics tools analyze the genetic data to identify mutations or relevant genetic markers.
  5. Interpretation: A molecular pathologist reviews the results and provides a report on the findings.


The procedure for sample collection typically takes about 15-30 minutes. Laboratory analysis and reporting may take several days to a few weeks, depending on the complexity of the test.


Sample collection can be performed in a hospital, outpatient clinic, or specialized diagnostic center. Laboratory analysis is conducted in specialized pathology labs.


  • Phlebotomists or medical technicians collect samples.
  • Molecular pathologists and geneticists conduct the analysis.
  • Lab technicians and bioinformaticians may assist with data processing.

Risks and Complications

  • Minimal risk associated with sample collection (e.g., slight pain or bruising from blood draws).
  • Low risk of contamination or sample degradation, which might necessitate re-collection.
  • Uncertain emotional impact from unexpected genetic findings.


  • Accurate diagnosis of genetic conditions.
  • Personalized treatment options, particularly beneficial in cancer treatment.
  • Early detection and intervention strategies for genetic risks.
  • Information that can guide family planning decisions.


There are no significant recovery requirements as the procedure is non-invasive. Patients should follow standard post-collection care for blood draws or biopsy sites. They may need to schedule follow-up appointments to discuss test results and subsequent steps.


  • Traditional diagnostic tests such as imaging or blood tests.
  • Standard pathology procedures without genetic components.
  • Each alternative has its own pros and cons, generally less precise but more readily available than advanced molecular tests.

Patient Experience

Patients may experience brief discomfort during sample collection. Emotional responses to genetic findings can vary, and genetic counseling is often available to help manage this aspect. Overall, the procedure itself is typically straightforward and low-risk.

By understanding the scope and details of unlisted molecular pathology procedures, patients and healthcare providers can better navigate the diagnostic and treatment landscape for complex genetic conditions.

Medical Policies and Guidelines for Unlisted molecular pathology procedure

Related policies from health plans

BRCA Genetic Testing

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