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Molecular Diagnostics MolDX® Z-Code & LCD Scrubber

Palmetto GBA, Noridian, CGS, and WPS MolDX programs mandate a unique 5-character DEX Z-Code in Loop 2400 REF02 for all molecular pathology CPT codes. Missing Z-codes or unverified LCD medical necessity indications trigger instant claim rejections. Scrub your molecular panels and genetic tests against CMS criteria before submission.

Palmetto MolDX® & 42 CFR § 410.32 Compliance Engine

Molecular Diagnostics MolDX® Z-Code & LCD Scrubber

DEX™ 2026 Code Registry

MolDX Medicare Administrative Contractors (Palmetto GBA, Noridian, CGS, WPS) automatically reject molecular pathology and genetic testing claims that omit a DEX Z-Code in Loop 2400 REF02 or fail Local Coverage Determination (LCD) clinical indications. Scrub your molecular panels before claim release to prevent uncollectible denials.

Jurisdiction states: AL, GA, NC, SC, TN, VA, WV
Mandatory LCD Chart Elements:
  • Documented personal history of early-onset breast cancer (<50 yrs) or epithelial ovarian cancer
  • First-degree relative with known pathogenic BRCA1/2 mutation
  • Pre-test and post-test genetic counseling documented by certified genetic counselor or physician
LOW AUDIT RISK
CPT 81162 · Est Allowable: $1450

MolDX Claim Fully Defensible: Z-Code ZB49A & LCD L38966 Verified

Compliant molecular diagnostics submission. DEX Z-Code is populated in Loop 2400 REF02 with qualifier "17", clinical LCD coverage criteria are fulfilled, and genetic counseling requirements are substantiated.

Compliance Protocol:
Claim ready for clean electronic 837P transmission to PALMETTO
Average Medicare allowable: $1,450
Archive clinical documentation and test report for 7-year audit retention window
ANSI X12 837P Loop 2400 REF*17 Segment
// Loop 2400 Line Item Service
LX*1~
SV1*HC:81162:1450.00:UN:1***1:2:3~
REF*17*ZB49A~

Request a Free 20-Case Molecular Pathology & Z-Code Audit

Diagnostic laboratories lose millions when DEX Z-Codes are misassigned or lack documented LCD criteria. Aethera’s certified molecular coding auditors will scrub 20 of your active claims or past denials with zero obligation.

Next Step For Your Practice

Turn these MolDX Scrubber insights into recovered cash

Are molecular pathology, pharmacogenomics, or NGS claims triggering CARC 16 / N382 rejections or retrospective LCD audit clawbacks? Aethera's certified pathology billing specialists verify every DEX Z-Code and clinical indication before claim submission to protect 100% of your laboratory allowable. Let our senior AAPC-certified billing team audit 50 of your active claims or past denials — completely free, with guaranteed under-48-hour findings.

Free 50-Claim Audit Pilot

Test our scrub rules and appeal workflow on 50 real claims. Zero commitment, no credit card required.

Instant A/R Gap Analysis

Upload your aging report for instant benchmark comparisons against MGMA standards and recoverable cash projections.

98%+ Clean Claim Rate <24h Submission SLA HIPAA BAA Provided

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