Local Coverage Article Billing and Coding

Billing and Coding: MolDX: MMACHC Test

A54035

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Contractor Information

Article Information

General Information

Article ID
A54035
Article Title
Billing and Coding: MolDX: MMACHC Test
Article Type
Billing and Coding
Original Effective Date
10/01/2015
Revision Effective Date
11/21/2019
Revision Ending Date
N/A
Retirement Date
N/A
AMA CPT / ADA CDT / AHA NUBC Copyright Statement

CPT codes, descriptions and other data only are copyright 2021 American Medical Association. All Rights Reserved. Applicable FARS/HHSARS apply.

Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

Current Dental Terminology © 2021 American Dental Association. All rights reserved.

Copyright © 2013 - 2022, the American Hospital Association, Chicago, Illinois. Reproduced by CMS with permission. No portion of the American Hospital Association (AHA) copyrighted materials contained within this publication may be copied without the express written consent of the AHA. AHA copyrighted materials including the UB-04 codes and descriptions may not be removed, copied, or utilized within any software, product, service, solution or derivative work without the written consent of the AHA. If an entity wishes to utilize any AHA materials, please contact the AHA at 312-893-6816. Making copies or utilizing the content of the UB-04 Manual, including the codes and/or descriptions, for internal purposes, resale and/or to be used in any product or publication; creating any modified or derivative work of the UB-04 Manual and/or codes and descriptions; and/or making any commercial use of UB-04 Manual or any portion thereof, including the codes and/or descriptions, is only authorized with an express license from the American Hospital Association. To license the electronic data file of UB-04 Data Specifications, contact Tim Carlson at (312) 893-6816. You may also contact us at ub04@aha.org.

CMS National Coverage Policy

Title XVIII of the Social Security Act, §1862(a)(1)A) allows coverage and payment for only those services that are considered to be reasonable and necessary for the diagnosis or treatment of illness or injury or to improve the functioning of a malformed body member

Article Guidance

Article Text

Methylmalonic aciduria (cobalamin deficiency) cblC type, with homocystinuria (MMACHC) is associated with the most common error of vitamin B12 metabolism. Although considered a disease of infancy or childhood, some individuals develop symptoms in adulthood. However to date, the exact function of the protein encoded by this gene is not known. Therefore, MMACHC testing does not meet the clinical utility requirements for a Medicare Benefit and is considered a statutorily excluded service. MolDX will also deny panels of tests that include the MMACHC gene.

To receive a MMACHC service denial, please submit the following claim information:

  • CPT code 81404-MMACHC, fgs
  • An Advance Beneficiary Notice (ABN) is not required for statutorily excluded services.
    • For a voluntary issued ABN, append with GX modifier
    • To indicate a valid ABN is on file for a known statutorily excluded service, append with a GY modifier
  • 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 837P
    • Box 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

Coding Information

CPT/HCPCS Codes

Group 1

(1 Code)
Group 1 Paragraph

N/A

Group 1 Codes
CodeDescription
81404 MOLECULAR PATHOLOGY PROCEDURE, LEVEL 5 (EG, ANALYSIS OF 2-5 EXONS BY DNA SEQUENCE ANALYSIS, MUTATION SCANNING OR DUPLICATION/DELETION VARIANTS OF 6-10 EXONS, OR CHARACTERIZATION OF A DYNAMIC MUTATION DISORDER/TRIPLET REPEAT BY SOUTHERN BLOT ANALYSIS) UGT1A1 (UDP GLUCURONOSYLTRANSFERASE 1 FAMILY, POLYPEPTIDE A1) (EG, HEREDITARY UNCONJUGATED HYPERBILIRUBINEMIA [CRIGLER-NAJJAR SYNDROME]) FULL GENE SEQUENCE

CPT/HCPCS Modifiers

Group 1

(2 Codes)
Group 1 Paragraph

N/A

Group 1 Codes
CodeDescription
GX NOTICE OF LIABILITY ISSUED, VOLUNTARY UNDER PAYER POLICY
GY ITEM OR SERVICE STATUTORILY EXCLUDED, DOES NOT MEET THE DEFINITION OF ANY MEDICARE BENEFIT OR, FOR NON-MEDICARE INSURERS, IS NOT A CONTRACT BENEFIT

ICD-10-CM Codes that Support Medical Necessity

N/A

ICD-10-CM Codes that DO NOT Support Medical Necessity

N/A

Additional ICD-10 Information

N/A

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.

N/A

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.

N/A

Other Coding Information

N/A

Revision History Information

Revision History DateRevision History NumberRevision History Explanation
11/21/2019 R5

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. Under Article Title changed title from Billing and Coding: MolDX: MMACHC Test Coding and Billing Guidelines to Billing and Coding: MolDX: MMACHC Test. Under Article Text moved the reference to the regulation Title XVIII of the Social Security Act, §1862 (a)(1)(A) Statutory Exclusion covers diagnostic testing “except for items and services that are not reasonable and necessary for the diagnosis or treatment of illness or injury or to improve the functioning of a malformed body member,…” to the CMS National Coverage Policy section and removed the sentence “Select the appropriate diagnosis for the patient.” Under Coding Information CPT/HCPCS Codes added CPT® 81404. Under CPT/HCPCS Modifiers Group 1: Codes modifiers GY and GX were added. CPT® was inserted throughout the article where applicable.

02/26/2018 R4 The Jurisdiction "J" Part A and Part B Contracts for Alabama (10111/10112), Georgia (10211/10212) and Tennessee (10311/10312) are now being serviced by Palmetto GBA. Effective 02/26/18, these 6 contract numbers are being added to this article. No coverage, coding or other substantive changes (beyond the addition of the 6 Part A and B contract numbers) have been completed in this revision.
01/12/2017 R3 Annual review completed, updated article with part a clm submission info and added new trademark for McKesson Z-code ID.
01/14/2016 R2 Annual validation, removed reference of MolDX ID (MID) field and revereted back to SV101-7
11/19/2015 R1 Replaced SV101-7 with MID, and replaced reference of Palmetto with MolDX

Associated Documents

Related Local Coverage Documents
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Related National Coverage Documents
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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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Other URLs
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Public Versions
Updated On Effective Dates Status
11/11/2019 11/21/2019 - N/A Currently in Effect You are here
Some older versions have been archived. Please visit the MCD Archive Site to retrieve them.

Keywords

  • MMACHC