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Test ID: ENCES    
Encephalopathy, Autoimmune Evaluation, Serum

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Test Classification Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer's instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR), Investigation Use Only (IUO) product, or a Research Use Only (RUO) product.

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CPT Code Information Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.

83519-ACh receptor (muscle) binding antibody

83519-AChR ganglionic neuronal antibody

83519-Neuronal VGKC autoantibody

83519-N-type calcium channel antibody

83519-P/Q-type calcium channel antibody















84182-Amphiphysin Western blot (if appropriate)

84182-CRMP-5 Western blot confirmation (if appropriate)

84182-Paraneoplastic autoantibody Western blot confirmation (if appropriate)

86255-NMO/AQP4-IgG CBA (if appropriate)

86256-AMPAR-Ab titer (if appropriate)

86256-GABAR-Ab titer (if appropriate)

86256-NMDAR-Ab titer (if appropriate)

LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the order and result codes of this test.

Test IDTest Order NameOrder LOINC Code
ENCESEncephalopathy, Autoimmune Evaluation, SerumIn Process


Result IDTest Result NameResult LOINC Code
61516NMDA-R Ab CBA, SIn Process
61518AMPA-R Ab CBA, SIn Process
61519GABA-B-R Ab CBA, SIn Process
34257Encephalopathy, Interpretation, SIn Process
89080AGNA-1, S53709-2
81722Amphiphysin Ab, S33927-5
80150ANNA-1, S13997-2
80776ANNA-2, S43188-2
83137ANNA-3, S33924-2
8338ACh Receptor (Muscle) Binding Ab11034-6
81184N-Type Calcium Channel Ab33979-6
81185P/Q-Type Calcium Channel Ab33980-4
83077CRMP-5-IgG, S35386-2
84321AChR Ganglionic Neuronal Ab, S42233-7
81596GAD65 Ab Assay, S30347-9
83138PCA-2, S33925-9
9477PCA-1, S53717-5
83076PCA-Tr, S33926-7
89165Neuronal (V-G) K+ Channel Ab, S41871-5
36349Reflex AddedNo LOINC Needed

LOINC and CPT codes are provided by the performing laboratory.