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HelpTest Code CIDP Chronic Inflammatory Demyelinating Polyradiculoneuropathy/Nodopathy Evaluation, Serum
Ordering Guidance
Multiple neurological phenotype-specific autoimmune/paraneoplastic evaluations are available. For more information as well as phenotype-specific testing options, refer to Autoimmune Neurology Test Ordering Guide.
For a list of antibodies performed with each evaluation, see Autoimmune Neurology Antibody Matrix.
Specimen Required
Patient Preparation: For optimal antibody detection, it is recommended collecting the specimen before initiation of immunosuppressant medication.
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 3 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Forms
If not ordering electronically, complete, print, and send a Neurology Specialty Testing Client Test Request (T732) with the specimen.
Useful For
Evaluating for chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and related demyelinating peripheral neuropathies
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| CIDPI | CIDP/NP Interpretation, S | No | Yes |
| CONCS | Contactin-1 IgG CBA, S | No | Yes |
| NF4FS | Neurofascin-155 IgG4, S | No | Yes |
Reporting Name
CIDP/NP Evaluation, SSpecimen Type
SerumSpecimen Minimum Volume
2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
Contactin-1 IgG: Negative
Neurofascin-155 IgG4: Negative
Day(s) Performed
CONCS: Monday through Thursday, Sunday
NF4FS: Monday, Friday
Report Available
5 to 10 daysSpecimen Retention Time
28 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86255 x 2
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CIDP | CIDP/NP Evaluation, S | 101447-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 614591 | Neurofascin-155 IgG4, S | 100845-7 |
| 616444 | CIDP/NP Interpretation, S | 69048-7 |
| 616442 | Contactin-1 IgG CBA, S | 101448-9 |