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The rules say that plans must pay for a medical service or item if regular Medicare would pay for it in this case. 
You can find this rule at 42 Code of Federal Regulations (CFR) Section 422.101. 
 
The rules say that clinical laboratory diagnostic tests can include tests that, for example, predict the risk 
associated with one or more genetic variations. In addition, in vitro companion diagnostic laboratory tests 
provide a report of test results of genetic variations and are essential for the safe and effective use of a 
corresponding therapeutic product. Next Generation Sequencing (NGS) is one technique that can measure one 
or more genetic variations as a laboratory diagnostic test, such as when used as a companion in vitro diagnostic 
test. 
 
This National Coverage Determination (NCD) is only applicable to diagnostic lab tests using NGS for somatic 
(acquired) and germline (inherited) cancer. Medicare Administrative Contractors (MACs) may determine 
coverage of diagnostic lab tests using NGS for ribonucleic acid (RNA) sequencing and protein analysis. 
 
1.    Somatic (Acquired) Cancer 
 
Effective for services performed on or after March 16, 2018, the Centers for Medicare & Medicaid Services 
(CMS) has determined that Next Generation Sequencing (NGS) as a diagnostic laboratory test is reasonable 
and necessary and covered nationally, when performed in a Clinical Laboratory Improvement Amendments 
(CLIA)-certified laboratory, when ordered by a treating physician, and when all of the following requirements 
are met: 
 
   a. Patient has: 
either recurrent, relapsed, refractory, metastatic, or advanced stage III or IV cancer; and 
not been previously tested with the same test using NGS for the same cancer genetic content, and 
decided to seek further cancer treatment (e.g., therapeutic chemotherapy). 
   b. The diagnostic laboratory test using NGS must have: 
Food & Drug Administration (FDA) approval or clearance as a companion in vitro diagnostic; and, 
an FDA-approved or -cleared indication for use in that patients cancer; and, 
results provided to the treating physician for management of the patient using a report template to specify 
treatment options. 
2.    Germline (Inherited) Cancer  
Effective for services performed on or after January 27, 2020, CMS has determined that NGS as a diagnostic 
laboratory test is reasonable and necessary and covered nationally for patients with germline (inherited) cancer, 
when performed in a CLIA-certified laboratory, when ordered by a treating physician and when all of the 
following requirements are met: 
 
   a. Patient has: 
ovarian or breast cancer; and, 
a clinical indication for germline (inherited) testing for hereditary breast or ovarian cancer; and, 
a risk factor for germline (inherited) breast or ovarian cancer; and 
not been previously tested with the same germline test using NGS for the same germline genetic content. 
   b. The diagnostic laboratory test using NGS must have all of the following: 
FDA-approval or clearance; and, 
results provided to the treating physician for management of the patient using a report template to specify 
treatment options. 
 
You can find these rules in the National Coverage Determination (NCD) Next Generation Sequencing (NGS) 
90.2. 
 
If you want to read these Medicare rules, you can go to this website www.medicareappeal.com. 
 
The Plan contract says that the Plan covers items and services in accordance with Medicare rules.