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Test Code CRMWS Collapsin Response-Mediator Protein-5-IgG, Western Blot, Serum

Additional Codes

LAB10758

Test Down Notes

Effective October 23, 2025, this test is currently unavailable due to limited clinical utility for this method. It is recommended to order a phenotype-specific autoimmune/paraneoplastic evaluation. For more information as well as phenotype-specific testing options, see Autoimmune Neurology Test Ordering Guide.

Useful For

Evaluation of cases of chorea, vision loss, cranial neuropathy and myelopathy

Method Name

Western Blot

Reporting Name

CRMP-5-IgG Western Blot, S

Specimen Type

Serum


Ordering Guidance


It is recommended an evaluation be ordered in conjunction with this testing if not previously performed. Multiple neurological phenotype-specific autoimmune/paraneoplastic evaluations are available. For more information as well as phenotype-specific testing options, see Autoimmune Neurology Test Ordering Guide.



Necessary Information


Provide the following information:

-Relevant clinical information

-Ordering healthcare professional name, phone number, mailing address, and e-mail address



Specimen Required


Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 1.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  72 hours

Reference Values

Negative

Day(s) Performed

Monday through Thursday

Report Available

5 to 10 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

84182

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CRMWS CRMP-5-IgG Western Blot, S 47401-5

 

Result ID Test Result Name Result LOINC Value
83107 CRMP-5-IgG Western Blot, S 47401-5