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Autoimmune Neuromuscular Profile

CPT: 83516(x3); 86235
86235; 83516; 83520(x2)
83516(x3); 86235
Updated on 09/24/2021
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  • Neuromuscular antibodies

Specimen Requirements




4 mL

Minimum Volume

2 mL (Note: This volume does not allow for repeat testing.)


Serum from a gel-barrier tube or red-top tube


Separate serum from cells within one hour of collection. Transfer to a plastic transport tube before shipping. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Storage Instructions

Refrigerate or freeze.

Stability Requirements



Room temperature

7 days


14 days


60 days

Freeze/thaw cycles

Stable x1

Test Details


To evaluate the presence of 4 markers related to autoimmune neuromuscular disorders, Anti-cN-1A Ab for IBM, Anti-HMGCR Ab, Anti-Jo-1 Ab, and Anti-SRP Ab.

See the individual tests for further information on each one.


This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.


Enzyme-linked immunosorbent assay (ELISA) and RIPA gel radiography


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
520310 Neuromuscular Profile 520062 Anti-cN-1A (NT5c1A) IBM (RDL) Units 96562-4
520310 Neuromuscular Profile 520058 Anti-HMGCR Ab (RDL) Units 82388-0
520310 Neuromuscular Profile 520033 Anti-Jo-1 Ab (RDL) Units 11565-9
520310 Neuromuscular Profile 520040 Anti-SRP Ab (RDL) 33921-8

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