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HelpTest Code CRMWCM Collapsin Response-Mediator Protein-5-IgG, Western Blot, Spinal Fluid
Additional Codes
| Mayo | CRMWC |
| Epic ID | LAB1723 |
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.
Specimen Type
CSFOrdering 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.
Shipping Instructions
Send specimen refrigerated.
Necessary Information
Provide the following information:
-Relevant clinical information
-Ordering healthcare professional name, phone number, mailing address, and e-mail address
Specimen Required
Container/Tube: Sterile vial
Specimen Volume: 3 mL
Specimen Minimum Volume
2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| CSF | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Transport refrigerated.
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Method Name
Western Blot
Useful For
Evaluation of cases of chorea, vision loss, cranial neuropathy and myelopathy
Day(s) Performed
Monday through Thursday
Report Available
5 to 10 daysReference Values
Negative
CPT Code Information
84182