Encephalopathy, Autoimmune Evaluation, Spinal Fluid

Test Code
ENC2M


Alias/See Also
AMPA-R Antibody CBA; Amphiphysin Antibody; Anti-Glial Nuclear Antibody, Type 1; Anti-Neuronal Nuclear Antibody, Type 1; Anti-Neuronal Nuclear Antibody, Type 2; Anti-Neuronal Nuclear Antibody, Type 3; Behavioral Change; CASPR2-IgG; Confusion; Contactin-Associated Protein-Like-2 (CASPR2)-IgG; CRMP-5-IgG; DPPX; dipeptidyl aminopeptidase-like protein 6; ENCEC; Encephalitis; GABA-B-R Antibody CBA; Glutamic Acid Decarboxylase (GAD65); Leucine-Rich Glioma Inactivated Protein-1 IgG; LGI1-IgG; metabotropic glutamate receptor 1; mGluR1; NMDA-R Antibody CBA; Psychosis; Purkinje Cell Cytoplasmic Antibody, Type 1; Purkinje Cell Cytoplasmic Antibody, Type 2; Purkinje Cell Cytoplasmic Antibody, Type Tr; Limbic encephalitis


Preferred Specimen
4 mL CSF


Minimum Volume
2 mL CSF


Transport Container
Sterile vial


Transport Temperature
Refrigerated (preferred)


Specimen Stability
Room Temperature: 72 hours
Refrigerated: 28 days
Frozen: 28 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed, lipemic, or icteric specimens should be rejected.


Performing Laboratory
Mayo Clinic Laboratories sendout

Additional Information
Mayo Clinical Laboratories CSF Encephalopathy, Autoimmune Evaluation Information

Last Updated: December 3, 2021


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.