LCD Reference Article Billing and Coding Article

Billing and Coding: MDS FISH

A57661

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Draft Article
Draft Articles are works in progress and not necessarily a reflection of the current billing and coding practices. Revisions to codes are carefully and thoroughly reviewed and are not intended to change the original intent of the LCD.

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General Information

Source Article ID
N/A
Article ID
A57661
Original ICD-9 Article ID
Not Applicable
Article Title
Billing and Coding: MDS FISH
Article Type
Billing and Coding
Original Effective Date
11/01/2019
Revision Effective Date
10/01/2022
Revision Ending Date
N/A
Retirement Date
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CMS National Coverage Policy

Title XVIII of the Social Security Act, §1833(e) prohibits Medicare payment for any claim lacking the necessary documentation to process the claim.

CMS Internet-Only Manual, Pub. 100-02, Medicare Benefit Policy Manual, Chapter 15, §80.1.2 A/B MAC (B) Contacts With Independent Clinical Laboratories

CMS Internet-Only Manual, Pub. 100-04, Medicare Claims Processing Manual, Chapter 16, §50.5 Jurisdiction of Laboratory Claims, §60.1.2 Independent Laboratory Specimen Drawing, §60.2 Travel Allowance

CMS Internet-Only Manual, Pub. 100-04, Medicare Claims Processing Manual, Chapter 23, §10 Reporting ICD Diagnosis and Procedure Codes

Article Guidance

Article Text

The information in this article contains billing, coding, or other guidelines that complement the Local Coverage Determination (LCD) for MDS FISH L37620.

Coding for FISH Testing

There are 2 sets of codes that describe in situ hybridization (ISH). Although the laboratory methods are similar, one distinguishes between the 2 sets of codes based on whether the ISH test is an adjunct to a surgical or cytopathology case, versus whether it is part of a clinical, chromosomal analysis. Specifically, the CPT® codes 88271-88291 should be used when the laboratory performs ISH as an ancillary analysis to cytogenetic studies for oncologic or inherited disorders.

When a pathologist performs ISH techniques as an adjunct to a surgical pathology or cytopathology case, CPT® codes 88365-88377 should be used to distinguish qualitative versus quantitative analysis (computer assisted versus manual). These codes must never be used by a pathologist when ISH is performed as an ancillary analysis to cytogenetic studies.

To report an MDS FISH service, please submit the following claim information:

  • Select the appropriate CPT® code
  • Enter 1 unit of service (UOS)
  • Select the appropriate ICD-10-CM code

A DEX Z-Code™ identifier is not required for FISH testing. If submitting a DEX Z-Code™ identifier, please submit following the below instructions:

  • Enter the appropriate DEX Z-Code™ identifier adjacent to the CPT® code in the comment/narrative field for the following Part B claim field/types:
    • Loop 2400 or SV101-7 for the 5010A1 837
    • Item 19 for paper claim
  • Enter the appropriate DEX Z-Code™ identifier adjacent to the CPT® code in the comment/narrative field for the following Part A claim field/types:
    • Line SV202-7 for 837I electronic claim
    • Block 80 for the UB04 claim form

Response To Comments

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Coding Information

Bill Type Codes

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Revenue Codes

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CPT/HCPCS Codes

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CPT/HCPCS Modifiers

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Group 1 Codes

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ICD-10-CM Codes that Support Medical Necessity

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(10 Codes)
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Group 1 Codes
Code Description
C94.6 Myelodysplastic disease, not elsewhere classified
D46.0 Refractory anemia without ring sideroblasts, so stated
D46.1 Refractory anemia with ring sideroblasts
D46.20 Refractory anemia with excess of blasts, unspecified
D46.21 Refractory anemia with excess of blasts 1
D46.22 Refractory anemia with excess of blasts 2
D46.A Refractory cytopenia with multilineage dysplasia
D46.B Refractory cytopenia with multilineage dysplasia and ring sideroblasts
D46.C Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality
D46.Z Other myelodysplastic syndromes
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ICD-10-CM Codes that DO NOT Support Medical Necessity

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ICD-10-PCS Codes

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Additional ICD-10 Information

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Bill Type Codes

Contractors may specify Bill Types to help providers identify those Bill Types typically used to report this service. Absence of a Bill Type does not guarantee that the article does not apply to that Bill Type. Complete absence of all Bill Types indicates that coverage is not influenced by Bill Type and the article should be assumed to apply equally to all claims.

Code Description

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Revenue Codes

Contractors may specify Revenue Codes to help providers identify those Revenue Codes typically used to report this service. In most instances Revenue Codes are purely advisory. Unless specified in the article, services reported under other Revenue Codes are equally subject to this coverage determination. Complete absence of all Revenue Codes indicates that coverage is not influenced by Revenue Code and the article should be assumed to apply equally to all Revenue Codes.

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Code Description

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Other Coding Information

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Group 1 Codes

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Coding Table Information

Excluded CPT/HCPCS Codes - Table Format
Code Descriptor Generic Name Descriptor Brand Name Exclusion Effective Date Exclusion End Date Reason for Exclusion
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Non-Excluded CPT/HCPCS Ended Codes - Table Format
Code Descriptor Generic Name Descriptor Brand Name Exclusion Effective Date Exclusion End Date Reason for Exclusion
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Revision History Information

Revision History Date Revision History Number Revision History Explanation
10/01/2022 R4

Updated to indicate this article is an LCD Reference Article.

10/01/2022 R3

Under ICD-10 Codes that Support Medical Necessity Group 1: Codes the description was revised for C94.6. This revision is due to the Annual ICD-10 Update and will become effective on 10/1/2022.

07/22/2021 R2

Under Article Title revised to MDS FISH.

Under CMS National Coverage Policy removed regulation CMS Internet-Only Manual, Pub. 100-02, Medicare Benefit Policy Manual, Chapter 15 §80 Requirements for Diagnostic X-Ray, Diagnostic Laboratory, and Other Diagnostic Tests and §80.1.1 Certification Changes and §80.2 Clinical Laboratory Services. Added regulation CMS Internet-Only Manual, Pub. 100-02, Medicare Benefit Policy Manual, Chapter 15 §80.1.2 A/B MAC (B) Contacts With Independent Clinical Laboratories.

Under Article Text revised title to MDS FISH. Under ICD-10 Codes that Support Medical Necessity Group 1: Codes deleted D46.4 and D46.9.

11/01/2019 R1

11/01/2019: This article is being revised in order to adhere to CMS requirements per Chapter 13, Section 13.5.1 of the Program Integrity Manual, to remove all coding from LCDs and incorporate into related Billing and Coding Articles.

Regulations regarding billing and coding were removed from the CMS National Coverage Policy section of the related MolDX: MDS FISH L37620 LCD and placed in this article.

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Associated Documents

Medicare BPM Ch 15.50.2 SAD Determinations
Medicare BPM Ch 15.50.2
Related National Coverage Documents
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SAD Process URL 1
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SAD Process URL 2
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Statutory Requirements URLs
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Rules and Regulations URLs
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CMS Manual Explanations URLs
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Public Versions
Updated On Effective Dates Status
11/22/2023 10/01/2022 - N/A Currently in Effect You are here
09/08/2022 10/01/2022 - N/A Superseded View
Some older versions have been archived. Please visit the MCD Archive Site to retrieve them.

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