Select the category of questions you would like to view:
MolDx General Questions
1. What is the purpose of Palmetto GBA’s MolDx program?
To identify tests, determine coverage, and determine reimbursement.
2. How does this program help Palmetto GBA adjudicate claims?
Once the required information is received and a unique identifier is assigned, Palmetto GBA can determine coverage and payment without documentation review. This process removes the need for the provider to submit large amounts of additional information with every claim and expedites claim payment.
3. What laboratories will be affected?
All private, reference, and hospital laboratories that perform molecular diagnostic testing and submit claims to Medicare in J1 on a CMS 1500 Claim Form or electronic claims on a 5010-837P are affected by this program.
4. What molecular diagnostic assays/tests are included in MolDx?
To help laboratory providers determine if a test should be registered for a unique identifier and submitted for a TA, see MolDx: 2013 HCPCS and CPT Code Changes. Submit questions about specific tests/assays not described in this chart, to MolDx@PalmettoGBA.com.
5. Is the MolDx Program national in scope?
Although the MolDx Program covers J1 (CA, NV, HI), labs that bill J1 services performed by a lab that is not located in J1 will have to register MDTs to identify the service.
6. Will this project align with the AMA effort to publish CPT codes for MDT?
The AMA efforts and the MolDx program are not related or interdependent.
7. How does a lab register a test?
Instructions are provided in MolDx Test Registration on the Palmetto GBA website.
8. What is the obligation or benefit to submit the MolDx Registration prior to the receipt of a coverage determination?
To identify the service and apply correct coverage for reimbursement.
9. What is McKesson’s involvement in the MolDx program?
McKesson is the contracted technology provider for the MolDx program. Palmetto will leverage the McKesson Diagnostics ExchangeTM for the online test registry and tech assessment components of the MolDx program. The McKesson Diagnostics Exchange is a web-based service designed to identify tests and help establish transparent and evidence-based coverage for them. This tool enables labs to share test information with Palmetto GBA online.
10. What information will be made available to the public?
MolDx information collected for the registry will only be available to those labs electing to submit a Z-Code Identifier application and consistent with the public/private indications therein. Palmetto GBA has no plans to publish a PTI registry. Each data item represented by a spreadsheet column in the PTI and Z-Code Identifier application is labeled with a public/private indicator. Only publicly available information will be visible in the registry for tests assigned a Z-Code Identifier.
11. Will Palmetto GBA expand the MolDx Program to other jurisdictions?
At this time Palmetto GBA has no indication that the MolDx program will be expanded. However, Palmetto GBA will administer active LCDs and articles published in J11.
MolDx Registration (PTI/Z-Code applications)
1. Is the Z-Code Identifier Application the only way to register a MolDx test?
No. Although we recommend that you apply for a Z-Code Identifier due to the additional benefits, including the on-line use and the Technical Assessment tool, Palmetto GBA added the Palmetto Test Identifier (PTI) as an alternate application method. See Palmetto Test Identifier (XLS, 75 KB) and a MolDx Test Information Form (XLS, 112 KB).
2. What is a Palmetto Test Identifier (PTI)?
A PTI is a unique identifier assigned to a test as an alternate to the Z-Code Identifier. Although both identifiers, the PTI and Z-Code, recognize a specific service and enable accurate coverage and reimbursement, Palmetto GBA recommends that laboratory providers submit Z-Code Identifier applications.
3. Why was the PTI added as an alternate unique identifier to the MolDx Program?
Palmetto GBA added this alternative in response to laboratory provider requests.
4. What is the difference between a PTI and a Z-Code Identifier?
- Z-Code Identifier
- Unique identifier issued by McKesson associated with the test registration
- May be used to identify tests outside the Palmetto GBA MolDx Program
- Public information about the test and associated performing labs available through the McKesson Diagnostics ExchangeTM public registry
- Allows access to the Technical Assessment(TA) Tool for online loading and tracking of submitted TAs
- PTI
- Limited only to use with the Palmetto GBA MolDx Program
- Public information about the test and associated performing labs is not on or available through the McKesson Diagnostics Exchange public registry
- Palmetto GBA has exclusive use of the PTI and this identifier will only be used to recognize and apply coverage and reimbursement for claims submitted in the MolDx Program. The PTI and its supporting information will not appear or be used in the McKesson public registry.
5. Will the information collected through the PTI and Z-Code Identifier Applications be separately stored? Palmetto GBA has exclusive use of the PTI and this identifier will only be used to recognize and apply coverage and reimbursement for claims submitted in the MolDx Program. The PTI will not appear or be used in the public registry.
6. Should the manufacture or the performing lab register an FDA-approved, in vitro diagnostic test that utilizes a kit?
The manufacture and the performing labs should submit the application. The MolDx team will review each submission for accuracy and assign each performing lab that reports the test without modifications the same code. The lab must submit an application in order to obtain an identifier for submission. Without the application information, Palmetto GBA cannot determine the kit is unmodified.
7. Should the manufacturer also register for ASR's that have not been FDA approved?
No.
8. Why is the expiration date for CLIA certification on the unique identifier application? Will labs be required to update this field?
The unique identifier (PTI/Z-Code) applications have been revised to eliminate this field.
9. If multiple tests may be performed and billed within one assay, is the lab required to register each test within the assay?
A unique identifier application is required for a single assay that may involve multiple tests to produce a single result.
10. Is a unique identifier application required for each specimen source, i.e. blood and bone marrow, for the same test?
If the billed codes used to report the test for the various specimen types are billed with the same codes, only a single unique identifier is necessary.
11. In addition to the unique identifier application, should labs send peer-reviewed articles to ensure Palmetto GBA has enough information to make a positive coverage determination?
No. Peer-reviewed literature used for coverage determination is only a requirement for the Technical Assessment (TA).
12. Is a unique identifier application required for an FDA-approved test?
The FDA approval process ensures the clinical and analytical validity of the test. However, the FDA does not include the review for clinical utility, which is required to establish Medicare coverage.
13. Will FISH ASR’s included in the cytogentic studies require a unique identifier application?
No. See MolDx 2013 Code Changes.
14. Is a new unique identifier required for updated tests or a test expansion?
You will need to submit an application for the current test and for the new test, if it is substantively different. This applies if you plan to submit claims for the two different tests.
15. After a test is granted a unique identifier, can a hospital bill Palmetto or their respective MAC directly for the test using the assigned code?
No. The identifier is only used as additional information and may not be used as a substitute for a CPT/HCPCS code. However, hospitals may report the assigned unique identifier in the additional information field.
16. If a pathologist plans to submit a claim for the professional component of a MolDx test, should the pathologist register the test?
Yes.
17. Is a unique identifier required for tests billed with an NOC code?
Yes. See MolDx 2013 Code Changes.
18. Are labs expected to register tests sent to another lab to perform?
You are only required to register tests if you plan to submit claims to Palmetto GBA.
19. If a lab performs the same exact test from two different locations, operating under two different CLIA numbers, will the lab be required to submit both tests for unique identifiers?
If the test process is standardized and the same method is used to acquire the results in both locations, labs will only have to submit one application for the test. However, if there is a difference in the method, an application will be required from both locations.
20. Should labs that provide lab products alert their lab customers about MolDx registration requirements?
Yes.
21. If the kit used in an LDT is not FDA-approved, should the lab apply for a unique identifier for that kit?
Yes.
22. How do labs identify test reagents in the MolDx unique identifier application forms?
Enter the information in the 'contributing component' field.
23. Are labs required to register for a MolDx unique identifier on tests that use a stacking code and a code that is not listed in the MolDx range of codes (i.e., CPT codes 87001-87905)?
Yes.
24. I submitted a PTI application. Why was I assigned a Z-Code Identifier?
A PTI will only be issued for tests that have not been assigned a Z-Code Identifier. If Palmetto GBA receives a PTI application for a test with an existing or assigned Z-Code Identifier, a separate PTI will not be assigned (i.e., Test kit when the performed test has not been modified.) If a lab modifies a registered test, the resulting test is considered an LDT and will require a separate MolDx application.
Sample: A manufacture receives FDA approval for a kit and the kit is assigned a Z-code Identifier. If a lab performs and reports a test with the unmodified kit, the lab must use that Z-code Identifier. If the performing lab submits a PTI application for the unmodified test, Palmetto GBA will assign the same Z-Code Identifier assigned to the manufacture’s test and will not assign a PTI. If the kit has been modified based on the application, a unique identifier will be assigned consistent with the lab’s application (PTI or Z-Code Identifier).
Once an identifier has been assigned to the new LDT, a TA should be submitted.
25. What information will be made available to the public on the Palmetto GBA website?
MolDx information collected for the registry will only be available to those labs electing to submit a Z-Code Identifier application. Palmetto GBA has no plans to publish a PTI registry.
26. When a laboratory applies for a unique identifier, will the substance of its application be made available to the public?
Each data item represented by a spreadsheet column in the application is labeled with a public/private indicator. Only publicly available information will be visible in the registry for tests assigned with a Z-Code Identifier.
27. Will Palmetto GBA require a new unique identifier when a laboratory modifies an FDA approved kit?
Yes. If a lab modifies a registered test, the resulting test is considered an LDT and will require a separate application.
28. If a California laboratory is billing for a test referred to a laboratory located outside of the jurisdiction, which lab is responsible for submitting registering the test?
It is the responsibility of the billing provider to obtain a unique identifier.
29. If multiple laboratories purchase the same test and each lab registers the test, how will Palmetto GBA notify the laboratory regarding the assigned identifier?
Palmetto GBA will follow the registration process. Palmetto GBA will check the database for the unique identifier to ensure the test has not been submitted. If a test has been submitted, the lab will receive the assigned identifier. The only difference is the identifier has already been established by another entity prior to the current lab’s application.
30. Will Palmetto GBA assign a cross-over PTI code for each Z-Code in order to create a complete code set for molecular diagnostic tests?
Palmetto GBA will not use the PTI and Z-Code Identifier to develop a code set. The identifiers provide specific information to enable Palmetto GBA to determine coverage and provide accurate reimbursement. Palmetto GBA will cross-reference each database.
31. Are hospital labs that file institutional claims and providers that file professional claims exempt from the requirement to obtain a unique identifier?
At this time the MolDx Program applies to J1 Part B claim submission. Part B includes professional claims or claims submitted by a pathologist for the professional component of a test. Therefore, a pathologist submitting claims for a professional MolDx service would be required to register a test.
Technical Assessment (TA)
1. The information requested by Palmetto GBA to support analytical validity may be considered proprietary intellectual property. How will Palmetto GBA assure the security and confidentiality of that information?
Only Palmetto GBA will review proprietary information.
2. Are there options in lieu of two published articles that support clinical utility?
In the absence of two published articles, Palmetto GBA will consider a single well-designed study with appropriate study subjects to establish significance, we will consider the following published documentation in evaluating clinical utility:
- Retrospective studies
- White-papers written by national societies and recognized experts
- Virtual or theoretical models that have been vetted in the scientific literature
- Abstracts
The onus is on the laboratory provider to make their best case using any and all evidence to support clinical utility.
3. Who will perform the technical assessments (TA)?
Subject matter experts (SME) from academia and industry will assess the scientific literature. Palmetto GBA will perform the assessment for all other components.
4. Will Palmetto GBA share the conclusions of one SME with other SME?
No. A SME will only have access to their assigned TA. Also, each SME will only have access to the scientific literature submitted with the TA. All other components will be reviewed by Palmetto GBA. Only Palmetto GBA will review proprietary information.
5. What are the conflict of interest principles that will guide Palmetto GBA in determining whether or not an SME should be permitted to conduct a technical assessment?
The conflict of interest principles were developed by Blue Cross Blue Shield of South Carolina and are standard for the industry.
6. What types of disclosures will be required from the SMEs in order to facilitate a conflict of interest determination?
The disclosures required by the SME were developed by Blue Cross Blue Shield of South Carolina for government contractors and are standard for the industry.
7. Will there be an opportunity for a laboratory to comment on a TA report before it is finalized?
Yes. Questions/concerns that surface during the TA will be communicated with the test developer. However, once the determination has been made, Palmetto GBA will not reconsider a determination for six months after the initial determination. At that time the lab may submit another request if substantive 'new' information is available.
8. Will laboratories and/or manufacturers be allowed to resubmit a coverage request after they have received a non-coverage determination?
Yes. If a new request includes substantive new information that was not included in the initial request, the lab may submit anew request six months after the non-coverage determination was issued.
9. If the State of New York (NYS) has certified a test, does a lab need to submit the test for a MolDx TA?
No, if this is an industry accepted test. However, we may request the package used to determine the NYS certification to make a coverage decision. It is not our intent to burden laboratory providers. If you have received tech assessments through another entity, please submit this information through MolDx@PalmettoGBA.com.
10. What documentation is required to demonstrate the NYS approval for a test?
The approval letter or in the case of multiple test approvals, you may send a copy of your NYS listing.
11. What is the difference in the logistical steps to initiate a formal coverage determination and the process to initiate coverage determination with a TA?
It is the same process.
12. When a manufacturer has a new test approved under a PMA (which under FDA policy from the early '90s requires evidence of clinical utility) and the test is reported with the stacking codes, a unique identifier is required, but a TA is not. If the lab billed the same test with an NOC code, both a unique identifier and TA would be required.
The NOC is not the only considered fact about the TA. If, as in your example, a test is vetted for science and clinical utility, the information can be collected at the time the unique identifier is assigned. At that time the lab may bill the NOC with the assigned unique identifier. The issue, NOC code or stacking code, in some cases will be the data we may need to determine reimbursement.
13. Since the clinical and economic utility data will be reviewed as part of the coverage determination (and not during the TA), will our clinical utility evidence be sent out for subject matter expert review or will that evidence be reviewed within Palmetto GBA only? What about our economic utility evidence?
If the clinical utility and economic data are in the public domain (published), SME will review it. If it is proprietary, then Palmetto GBA will review it.
14. Is there a difference in the expected timeline for a coverage determination and a TA?
It is the same.
15. Is a MolDx test application required before a TA submission?
Yes.
16. Can a lab provide services prior to the TA approval date in anticipation of a favorable determination and then submit the claims after the approval?
To avoid overpayment requests, labs should freeze services until coverage is approved and appropriate billing and coding guidelines are published.
17. If a lab plans to submit a test for FDA approval, can the test be submitted for a TA first?
If the test is currently in the FDA process, please hold the TA request until the FDA has completed its determination. However, if you have not submitted the test to the FDA, you may request a TA. The FDA submission should be done prior to TA request. Once you receive an FDA determination, you may submit a TA request.
18. Should labs submit applications for Research Use Only Reagents (RUO)?
No.
19. Are manufactures that provide items such as ASR or RUO used in an LDT required to register the items?
No. Only the LDT developer and biller of the LDT are required to register for a unique identifier. However, an LDT developer must disclose the ASR and RUO used in the developed LDT on the application .
20. How should labs outline test reagents in the TA?
Submit the package insert for the kit with the materials.
21. When multiple large numbers of reagents are used in a test, how should labs identify the specific details for the reagents?
Provide sufficient information to identify the manufacturer and the product specifications (PI).
22. Should protocols for technical evaluation be included in the TA submission?
Yes.
23. Will a completed TA be made available on the Palmetto GBA website?
Only an approved TA will be published. However, Palmetto GBA may publish a coverage/non-coverage article or an LCD based on the TA.
24. How should a laboratory designate proprietary information on the TA submission?
Palmetto GBA will consider any information that is not publicly available to be proprietary information.
25. Will Palmetto GBA make components of the TA available to the public?
Only information that is publicly available from the manufacture’s website will be available through the TA software. Only the final approval synopsis will be published. Proprietary information will not be included in this summary.
26. During the TA process, when should a laboratory submit pricing information to support a payment rate determination?
The instructions for the TA are published on Palmetto GBA’s website.
27. When will Palmetto GBA make the pricing determination?
A pricing determination will be made once the TA is complete and the service is determined to be reasonable and necessary for Medicare beneficiaries.
28. How will Palmetto GBA determine reimbursement for a test?
Reimbursement is based on accurate submitted codes regardless of the cost of the platform used. For tests that are reported with an NOC code, pricing will be determined based on the information collected in the TA. Each test will be assessed on an individual basis and priced according to the most appropriate method. Palmetto GBA will review the pricing method with the individual lab upon completion of the TA.
29. When should labs submit the clinical data dossier (TA) to Palmetto GBA?
Palmetto GBA will accept a TA after an identifier has been assigned. For labs that do not submit the clinical data, Palmetto GBA will prioritize according to claims data and make requests.
30. If a test requires a TA and is performed by a laboratory outside Palmetto GBA's jurisdiction that does not bill Palmetto GBA directly, how is the TA submission to be completed?
In order to receive a coverage determination, it is the responsibility of the billing laboratory to submit a TA. Claims paid for tests that do not meet the mandated reasonable and necessary criteria may be subject to overpayment requests.
Billing and Coding
1. Can labs continue to bill the stacking codes once the unique identifier is assigned?
- If the assay was billed prior to assignment, you may continue with the same stack and the unique identifier in the comment/narrative field
- If the assay has never been billed, you must submit a TA and a coverage determination prior to submission
2. What are the effective dates of the codes ZSB01 and ZB728?
Z-Code Identifiers are effective at time of assignment.
3. What action should a lab take if they believe they may have incorrectly billed for a MolDx service?
If you believe your practice has made a MolDx billing/coding error, you may take the following corrective actions:
- Complete a Self-Audit
- Identify incorrect submissions
- Contain further claim submission errors
- Consider Self-Disclosure Protocol
- Self-disclosure guidelines available on the OIG website
4. Where do I enter the assigned MolDx test identifier on my claim?
If you are submitting a paper claim, this information would be placed in Block 19 of the CMS 1500 claim form. For Electronic claims (5010):
- 837P (Physician/Professional)
Use the SV101-7 to provide the unique identifier for all lines related to the test indicated by the identifier. This field maps to the Line item Description (This field is required for NOC codes to avoid rejection by the Common Edit Module Front end).
5. If the lab submits a MolDx covered test without a unique identifier after the implementation date, will Palmetto GBA reject the claim as 'unprocessable' with no appeal rights or send a denial with a specific or new claim denial message?
Claims received without additional information required to adjudicate the claim will be rejected.
6. If a laboratory performs multiple assays/tests on a single patient on one date of service, will the lab have to split the different assays/tests into multiple claims?
No. Laboratory providers may submit multiple assays per claim. The SV701-7 narrative field on the 837P claim is limited to one unique identifier per claim line. Therefore, you must report the complete code stack and unique identifier for each test. In many cases this will require labs to repeat a CPT code on the claim and append with the 91 CPT modifier to indicate the additional service(s) is not a duplicate.
Claim Example
|
Performed Test
|
CPT code/modifier
|
Number of Service (NOS)
|
Unique Identifier
|
|
Assay 1
|
83890-91
|
1
|
P1234
|
|
Assay 1
|
83893-91
|
5
|
P1234
|
|
Assay 2
|
83890-91
|
1
|
P6789
|
|
Assay 2
|
83893-91
|
3
|
P6789
|
7. If a CPT code appears on the claim more than once to report an additional test, is a modifier required?
Yes. Append with CPT modifier 91. See the claim example for question 8.
8. Will CCI edits continue to be in effect on MolDx services?
Yes. Because the PTI/Z-Code Identifier only acts to label the specific test and are not a code set, MolDx service providers must append CPT codes within the CCI edits with a 59 CPT modifier to indicate the CCI Column II code is a different test.
Example:
|
Performed Test
|
CPT code/modifier
|
Number of Service (NOS)
|
Unique Identifier
|
|
Assay 1
|
88386
|
1
|
P1234
|
|
Assay 2
|
83903-59
|
1
|
P6789
|
|
Assay 2
|
83891
|
1
|
P6789
|
|
Assay 2
|
83896-59
|
2
|
P6789
|
|
Assay 2
|
83898
|
1
|
P6789
|
|
Assay 2
|
83912-59
|
1
|
P6789
|
Note: The 59 CPT modifier should ONLY be appended to CCI Column II codes.
9. There is only one Box 19 on my paper claim form. How do I identify more than one test or assay on my claim?
Answer: Due to the limitations of the paper claim, labs using this form will be limited to only one test/assay/unique identifier per claim. To bill a MolDx test on a paper claim, enter the unique identifier in Box 19 and then enter only the stack for that identifier on the claim. Remember: You may only file one test per paper claim submission.
Reimbursement
1. Will a microarray service be reimbursed at the same rate for all microarrays or will the diagnosis differentiate payment? For example, will 1800+ genes of one array be viewed differently than an 1800+ array with a different algorithm?
Diagnosis will not differentiate payment. Payment is based on the accurate CPT/HCPCS codes submitted. However, if there are less than 500 probes in an array, CPT code 83999 must be used and Palmetto GBA will price the NOC code.
2. Does the DRG segregate the CPT code to a different payment?
No.
3. If a test produces similar results, but is performed on different platforms with different costs, will the reimbursement rate be adjusted to show the increase in platform costs?
Reimbursement is based on accurate submitted codes regardless of the cost of the platform used.
4. Will ABN’s be valid with the unique identifier?
The unique identifier is only additional information not a billing code.
5. Will Palmetto GBA pay test services provided prior to the TA approval date?
Prior to the TA, claims will process according to the billed services. If information in the TA indicates a non-covered service or inappropriate billing, Palmetto GBA will make the appropriate corrections.
6. If I already have a PTI for my test, how do I switch to a Z-Code Identifier so I can use the online TA feature?
Send a request to switch the ID to MolDx@PalmettoGBA.com.
7. Is the reimbursement for a flow cytometry affected by MolDx?
Palmetto GBA has an active LCD for Flow Cytometry and will continue to administer coverage as published in that policy and any other active policy.
Coverage Issues
1. Is a confirmatory FISH test a covered benefit?
Confirmatory testing is considered a quality check and is not a covered Medicare benefit.
2. If a lab needs a denial for a noncovered test in order to bill a secondary payor, should they submit the test for MolDx registration?
Yes.