FXDNA – “Fragile X (FMR1) with Reflex to Methylation Analysis” replaced by FXRM1 – “Fragile X (FMR1) with Reflex to Methylation Analysis”

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Inactivated/Replace Test

Effective Date

03/30/2022

Included in Report

WML Test Directory Update | March 2022

Replacement Test

Fragile X (FMR1) with Reflex to Methylation Analysis

Inactivated Test Details

Mnemonic

FXDNA

Ordering Code

3671860

CPT-4 Codes(s)

81243, plus 81244 if reflexed at additional cost

Replacement Test Details

Mnemonic

FXRM1

Ordering Code

3600211

CPT-4 Codes(s)

81243, plus 81244 if reflexed at additional cost

Turnaround Time
Varies
Performed
Varies
Legacy Code
FXRM1
Example Report
Download

Specimen Information

Collect

Lavender EDTA

Specimen Preparation

Send 5.0 mL whole blood.

Alternate Specimen

Whole blood: Yellow ACD A

Minimum Volume

1.5 mL

Transport Temperature

Refrigerated

Stability

Room temperature: 7 days
Refrigerated: 30 days
Frozen: 6 months

Methodology

Polymerase Chain Reaction/Capillary Electrophoresis
more

Reference Range

See report
more

Performing Laboratory

ARUP
more

Interface Map for FXRM1

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
Fragile X (FMR1) with Reflex to Methylation Analysis3600211
3600212Frag X Specimen66746-9No
3600213Fragile X Allele 145321-7No
3600214Fragile X Allele 245322-5No
3600215Fragile X Methylation Pattern41107-4No
3600216 Fragile X Interpretation36913-2No

The CPT codes provided are for general informational purposes only and are based on an interpretation of AMA guidance. It is the sole responsibility of the billing party to determine CPT codes. Any questions regarding coding should be directed to the paying party.

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