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ALL MEDICAL CODES IN CATEGORY Pathology and Laboratory Procedures > Immunology Procedures
2025 CPT code 86834
Antibody to human leukocyte antigens (HLA), solid phase assays (eg, microspheres or beads, ELISA, Flow cytometry); semi-quantitative panel (eg, titer), HLA Class I
2025 CPT code 86381
Mitochondrial antibody (e.g., M2), each.
2025 CPT code 86430
Rheumatoid factor; qualitative
2025 CPT code 86777
Antibody; Toxoplasma, IgG. This test detects IgG antibodies to Toxoplasma gondii, indicating past exposure and potential immunity.
2025 CPT code 86784
Antibody; Trichinella. This test detects antibodies to Trichinella spiralis, the parasite causing trichinosis.
2025 CPT code 86806
Lymphocytotoxicity assay, visual crossmatch; without titration.
2025 CPT code 86663
Qualitative or semiquantitative immunoassay for Epstein-Barr (EB) virus, early antigen (EA) antibodies.
2025 CPT code 86828
Antibody to human leukocyte antigens (HLA), solid phase assays (eg, microspheres or beads, ELISA, flow cytometry); qualitative assessment of the presence or absence of antibody(ies) to HLA Class I and Class II HLA antigens
2025 CPT code 86331
Immunodiffusion; gel diffusion, qualitative (Ouchterlony), each antigen or antibody
2025 CPT code 86156
Cold agglutinin; screen.
2025 CPT code 86171
Complement fixation tests, each antigen.
2025 CPT code 86309
Heterophile antibodies; titer.
2025 CPT code 86360
T-cells; absolute CD4 and CD8 count, including ratio.
2025 CPT code 86225
Antibody to native or double-stranded deoxyribonucleic acid (DNA).
Qualitative assessment of the presence or absence of antibody(ies) to HLA Class I or Class II HLA antigens using solid phase assays (e.g., microspheres or beads, ELISA, Flow cytometry).
2025 CPT code 86022
Antibody identification; platelet antibodies
2025 CPT code 86021
Antibody identification; leukocyte antibodies
2025 CPT code 86280
Hemagglutination inhibition test (HAI).
2025 CPT code 86794
Antibody; Zika virus, IgM
2025 CPT code 86003
Allergen-specific IgE; quantitative or semiquantitative, crude allergen extract, each. This test measures the amount of immunoglobulin E (IgE) antibodies in response to specific crude allergen extracts.
2025 CPT code 86304
Immunoassay for tumor antigen, quantitative; CA 125. This test quantifies the CA 125 tumor marker in serum or body fluid.
2025 CPT code 86301
Immunoassay for tumor antigen, quantitative; CA 19-9
2025 CPT code 86367
Stem cells (ie, CD34), total count.
2025 CPT code 86625
Immunoassay to detect Campylobacter antibodies.
2025 CPT code 86235
Extractable nuclear antigen, antibody to, any method (eg, nRNP, SS-A, SS-B, Sm, RNP, Sc170, J01), each antibody
2025 CPT code 86341
Islet cell antibody
2025 CPT code 86703
Antibody; HIV-1 and HIV-2, single result. This test detects antibodies to HIV-1 or HIV-2, and does not differentiate between the two.
2025 CPT code 86141
This test measures the level of high-sensitivity C-reactive protein (hs-CRP) in the blood, a marker of inflammation.
2025 CPT code 86793
Antibody; Yersinia
2025 CPT code 86332
Immune complex assay
2025 CPT code 86337
Insulin antibodies
2025 CPT code 86687
Antibody; HTLV-I
2025 CPT code 86325
Immunoelectrophoresis; other fluids (e.g., urine, cerebrospinal fluid) with concentration.
2025 CPT code 86277
Growth hormone, human (HGH), antibody
2025 CPT code 86615
Qualitative or semiquantitative immunoassay for Bordetella antibodies, each antibody.
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