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Lab Test Dictionary

Encephalitis Antibody Evaluation with Reflex to Titer and Line Blot, Serum (94955)


See Individual Assays


Autoimmune Encephalitis Panel; Encephalopathy Autoimmune Evaluation (previously ENS2 to Mayo)

Specimen Type


Performing Lab

Quest-Sending to Mayo, See TC PCDES

Epic ID


Lab Test Days


Standard TAT

1-14 Days

Collection Information

Specimen Required

7-12 mL Blood

Container Type

Red Top (No Additive)

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room temp=24 Hours; Refrigerated=48 Hours; Frozen=21 Days

Rejection Criteria

Gross hemolysis; Grossly lipemic; Received room temperature; Received refrigerated; Freeze/thaw greater than 3 cycles; Grossly icteric; Turbid; Bacterial contamination

Test Volume Required

6 mL Serum

Minimum Test Volume

3.5 mL Serum

Included Tests

Tissue IFA Observation(s), ANNA1 (Hu) Ab IFA, ANNA2 (Ri) Ab IFA, ANNA3 Ab IFA, PCA1 (Yo) Ab IFA, PCA2 Ab IFA, PCA-Tr (DNER) Ab IFA, AGNA/SOX1 Ab IFA, Amphiphysin Ab IFA, CRMP5/CV2 Ab IFA, GAD65 Ab IFA, Ma2/Ta Ab IFA, Myelin Ab IFA, Aquaporin 4 (NMO) Ab IFA, ANNA-3 Ab Titer, PCA-2 Ab Titer, ANNA1 (Hu) Ab LB, ANNA2 (Ri) Ab LB, PCA1 (Yo) Ab LB, PCA-Tr (DNER) Ab LB, AGNA/SOX1 Ab LB, Ma2/Ta Ab LB, Zic4 Ab LB, CRMP5/CV2 Ab LB, Amphiphysin Ab LB, GAD65 Ab LB, Aquaporin-4 Ab (IgG) CBA, AQP4 Ab(IgG) CB

CPT Codes

86255 (x19), 86052,86341, 83519 (x2),86596(x2)