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Test Catalog
IGE - Overview: Immunoglobulin E (IgE), Serum
Evaluating patients with suspected diseases associated with elevations in total immunoglobulin E (IgE), including allergic disease, primary immunodeficiencies, infections, malignancies, or other inflammatory diseases Diagnostic evaluation...
SUAC - Overview: Succinylacetone, Blood Spot
Second-tier newborn screen for tyrosinemia type 1 (HT-1) when primary screen showed nonspecific elevations of tyrosine Diagnosing HT-1 when used in conjunction with testing for urine organic acids, liver function, alpha-fetoprotein, and...
CINP - Overview: Cortisol, Mass Spectrometry, Serum
Second-order testing when cortisol measurement by immunoassay (eg, CORT / Cortisol, Serum) gives results that are not consistent with clinical symptoms, or if patients are known to, or suspected of, taking exogenous synthetic steroids...
PUPYP - Overview: Purines and Pyrimidines Panel, Plasma
Evaluating patients with symptoms suspicious for disorders of purine and pyrimidine metabolism Monitoring patients with disorders of purine and pyrimidine metabolism Laboratory evaluation of primary and secondary hyperuricemias Assessing...
CORTO - Overview: Cortisol, Free and Total, Serum
Assessment of cortisol status in cases where there is known or a suspected abnormality in cortisol-binding proteins or albumin Assessment of adrenal function in the critically ill or stressed patient, thus preventing unnecessary use of...
EPO - Overview: Erythropoietin, Serum
An aid in distinguishing between primary and secondary polycythemia Differentiating between appropriate secondary polycythemia (eg, high-altitude living, pulmonary disease, tobacco use) and inappropriate secondary polycythemia (eg,...
H2BR - Overview: HER2 Amplification Associated with Breast Cancer, FISH, Tissue
A predictive marker for patients with both node-positive or node-negative primary and metastatic breast cancer Patients with HER2 amplification that may be candidates for therapies targeting the human epidermal growth factor receptor 2...
Human papillomavirus (HPV) screening for average-risk, asymptomatic individuals who are eligible for primary HPV testing, have barriers to a speculum exam for a clinician-collected cervical sample for screening, and who are able to...
A2PI - Overview: Alpha-2 Plasmin Inhibitor, Plasma
Diagnosing congenital alpha-2 plasmin inhibitor deficiencies (rare) Providing a complete assessment of disseminated intravascular coagulation, intravascular coagulation and fibrinolysis, or hyperfibrinolysis (primary fibrinolysis), when...
TBNY - Overview: T, B and NK Lymphocyte Quantitation, New York, Blood
Only orderable by New York clients Serial monitoring of CD4 T-cell count in patients who are HIV-positive Follow-up and diagnostic evaluation of primary immunodeficiencies, including severe combined immunodeficiency Immune monitoring...
TCD4 - Overview: CD4 Count for Immune Monitoring, Blood
Serial monitoring of CD4 T cell count in patients who are HIV-positive Follow-up and diagnostic evaluation of primary cellular immunodeficiencies, including severe combined immunodeficiency T-cell immune monitoring following...
CD4NY - Overview: CD4 Count for Monitoring, New York, Blood
Only orderable by New York clients Serial monitoring of CD4 T-cell count in patients who are HIV-positive Follow-up and diagnostic evaluation of primary cellular immunodeficiencies, including severe combined immunodeficiency T-cell...
UE3 - Overview: Estriol, Unconjugated, Serum
As an adjunct biomarker in the prenatal diagnosis of disorders of fetal steroid metabolism, including Smith-Lemli-Opitz syndrome (1,2) and X-linked ichthyosis (placental sulfatase deficiency disorders) Evaluating primary or secondary fetal...
Second-tier testing of newborns with an abnormal primary screening result for mucopolysaccharidosis type II (MPS II, decreased iduronate-2-sulfatase) Follow-up testing for evaluation of an abnormal newborn screening result for MPS II This...
TRECS - Overview: T-Cell Receptor Excision Circles Analysis, Blood
Measuring T-cell output or reconstitution (thymopoiesis) following hematopoietic cell transplantation or highly active antiretroviral therapy Evaluating thymic function in patients with cellular or combined inborn errors of immunity...
QNKS - Overview: Natural Killer (NK)/Natural Killer T-Cell Subsets, Quantitative, Blood
Quantitation of the major natural killer (NK)-cell subsets relative to total NK cells (NK cell subsets) or total lymphocytes (NK T cells) Assessment in the following clinical contexts: HIV, primary immune deficiencies with NK cell...
TBBS - Overview: Quantitative Lymphocyte Subsets: T, B, and Natural Killer (NK) Cells, Blood
Serial monitoring of CD4 T-cell count in patients who are HIV-positive Follow-up and diagnostic evaluation of primary immunodeficiencies, including severe combined immunodeficiency Immune monitoring following immunosuppressive therapy...
Second-tier testing of newborns with an abnormal primary screening result for mucopolysaccharidosis type I (MPS I) (decreased alpha-L-iduronidase activity) Follow-up testing for evaluation of an abnormal newborn screening result for MPS...
OSCAL - Overview: Osteocalcin, Serum
Monitoring and assessing effectiveness of antiresorptive therapy in patients treated for osteopenia, osteoporosis, Paget disease, or other disorders in which osteocalcin levels are elevated As an adjunct in the diagnosis of medical...
A second-level test after lymphocyte proliferation to mitogens (specifically phytohemagglutinin) has been assessed Evaluating patients suspected of having impairment in cellular immunity Evaluation of T-cell function in patients with...
Screening for hepatitis C virus (HCV) infection in primary care settings in high-risk persons with a current or previous history of illicit injection drug use or a history of receiving a blood transfusion prior to 1992 Screening for...
TCP - Overview: T-Cell Subsets, Naive, Memory, and Activated, Blood
Determining the presence of naive, memory, and activated T cells in various clinical contexts including autoimmune diseases, immunodeficiency states, T-cell recovery post-hematopoietic stem cell transplant, DiGeorge syndrome, and as a...
AGNTS - Overview: Anti-Glial/Neuronal Nuclear Antibody-Type 1 (AGNA-1) Titer, Serum
Reporting an end titer result from serum specimens Serological evaluation using serum specimens from patients who present with a subacute neurological disorder of undetermined etiology, especially those with risk factors for primary lung...
AGNTC - Overview: Anti-Glial/Neuronal Nuclear Antibody-Type 1 (AGNA-1) Titer, Spinal Fluid
Reporting an end titer result from cerebrospinal fluid (CSF) specimens Serological evaluation using CSF specimens from patients who present with a subacute neurological disorder of undetermined etiology, especially those with risk factors...
Second-tier testing of newborns with an abnormal primary screening result for mucopolysaccharidosis type II (MPS II, decreased iduronate-2-sulfatase) where quantitation of the glycosaminoglycans dermatan and heparan sulfate is desired in...
Second-tier testing of newborns with an abnormal primary screening result for mucopolysaccharidosis type I (MPS I, decreased alpha-L-iduronidase activity) where quantitation of the glycosaminoglycans dermatan and heparan sulfate is desired...
Assessing cytomegalovirus (CMV)-specific immune competence in allo-hematopoietic stem cell transplantation patients who are at risk for developing late CMV disease (beyond day 100 after transplant) Assessing CMV-specific immune competence...
ACC - Overview: Adrenal Mass Panel, 24 Hour, Urine
Aiding in assessing malignancy in adrenal masses May aid in improving diagnostic and prognostic prediction and dissect disease mechanisms for the following applications: -Diagnostic assessment and follow up of adrenal cortical...
PHSP - Overview: Prenatal Hepatitis Evaluation, Serum
Screening pregnant women for chronic hepatitis B and hepatitis C in primary care settings, with or without risk factors for hepatitis C Determining the level of infectivity of chronic hepatitis B in pregnant women This test is not useful...
MISCF - Overview: Miscellaneous Studies Using Chromosome-Specific Probes, FISH
Resolution of unusual or complex structural alterations, questionable mosaicism, and unbalanced chromosome abnormalities that cannot be resolved by chromosome or chromosomal microarray analysis Identifying gain, loss, or rearrangement of...
Providing a genetic evaluation for patients with a personal or family history suggestive of atypical hemolytic uremic syndrome (aHUS), thrombotic microangiopathy (TMA), or complement 3 glomerulopathy (C3G) Establishing a diagnosis of...
TRK - Overview: Tropomyosin Receptor Kinase (TRK) Immunostain, Technical Component Only
Helpful in the screening for neurotrophic tyrosine receptor kinase (NTRK) rearranged tumors
DSGAB - Overview: Desmoglein 1 (DSG1) and Desmoglein 3 (DSG3), IgG Antibodies, Serum
Preferred screening test for patients suspected to have an autoimmune blistering disorder of the skin or mucous membranes (pemphigus) Aiding in the diagnosis of pemphigus
Screening for infection with high-risk human papillomavirus (HPV) associated with the development of cervical cancer Individual genotyping of HPV-16 and/or HPV-18 if present This testing is intended for use in clinical monitoring and...
CPAVP - Overview: Copeptin proAVP, Plasma
Investigating the differential diagnosis for patients with water balance disorders, including diabetes insipidus, in conjunction with osmolality and hydration status May aid in the evaluation of cardiovascular disease in conjunction with...
Units of Measurement - Mayo Clinic Laboratories
Units of Measure A list of common units used in the reporting of our assays has been defined. Refer to the table for these units as well as the recommended report abbreviations. Last updated: June 6, 2025...
SSH24 - Overview: Supersaturation Profile, Self-Collect, 24 Hour, Urine
Diagnosis and management of patients with renal lithiasis: -Predicting the likely composition of the stone, in patients who have a radiopaque stone, for whom stone analysis is not available -May aid in designing a treatment program Aiding...
SUP24 - Overview: Supersaturation Profile, 24 Hour, Urine
Diagnosis and management of patients with renal lithiasis: -Predicting the likely composition of the stone, in patients who have a radiopaque stone, for whom stone analysis is not available -May aid in designing a treatment program...
C19BM - Overview: CD19 Immunostain, Bone Marrow, Technical Component Only
Identification of normal and neoplastic B cells
MINT - Overview: Molecular Interpretation
Interpretation of the hereditary erythrocytosis profile
ALS - Overview: Aldolase, Serum
Detection of muscle disease
CMAT - Overview: Chromosomal Microarray, Tumor, Fresh or Frozen
Genomic characterization of tumor for copy number imbalances and loss of heterozygosity Assisting in the diagnosis and classification of malignant neoplasms, including hematolymphoid malignancies Evaluating the prognosis for patients with...
UBIQ - Overview: Ubiquitin (UBIQ) Immunostain, Technical Component Only
Classification of neurodegenerative diseases
DD22F - Overview: 22q11.2 Deletion/Duplication, FISH, Varies
Establishing a diagnosis of 22q deletion/duplication syndromes Detecting cryptic rearrangements involving 22q11.2 or 22q11.3 that are not demonstrated by conventional chromosome studies
EDN - Overview: Eosinophil Derived Neurotoxin, Serum
Evaluating patients suspected to have a condition associated with eosinophilia or hypereosinophilia Evaluating patients with elevated peripheral blood eosinophil counts Managing patients with elevated eosinophil-derived neurotoxin in the...
CALX - Overview: CALR Mutation Analysis, Myeloproliferative Neoplasm (MPN), Reflex, Varies
Aiding in the distinction between a reactive cytosis and a chronic myeloproliferative disorder Evaluating mutations in CALR in an algorithmic process for the MPNR / Myeloproliferative Neoplasm, JAK2 V617F with Reflex to CALR and MPL,...
MCMRU - Overview: Mast Cell Mediators, Random, Urine
Evaluating patients at risk for mast cell activation syndrome (eg, systemic mastocytosis) using random urine collections
LPSBF - Overview: Lipase, Body Fluid
Determining whether pancreatic inflammation or pancreatic fistula may be contributing to a pathological accumulation of fluid
RLTE4 - Overview: Leukotriene E4, Random, Urine
Aiding in the evaluation of patients at-risk for mast cell activation syndrome (eg, systemic mastocytosis, IgE-mediated allergies, or aspirin-exacerbated respiratory disease) using random urine collections
SRYF - Overview: Sex-Determining Region Y, Yp11.3 Deletion, FISH
Detecting the deletion or addition of the SRY gene in conjunction with conventional chromosome studies
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Primary ciliary dyskinesia - Insights
Learn more about Mayo Clinic Laboratories’ robust approach to testing for primary ciliary dyskinesia, a rare genetic condition that can lead to chronic otosinopulmonary disease and infertility in men....
CPT Codes and LOINC Update: September 2019 - Insights
View a full list of new CPT codes, Test Classification Updates, LOINC Codes, and Z-Codes posted to mayocliniclabs.com during the month of September 2019....
https://www.mayocliniclabs.com/it-mmfiles/cpt-code-changes.xlsx
note, CPT Code changes listed on this document are effective January 1st, 2025.*** ***Updates and other changes may occur, and be reflected on this document, leading up to 2025*** ***CPT Code Updates...
MCL Primary Ciliary Dyskinesia Genetic Testing Patient Information MC1235297
MCL Primary Ciliary Dyskinesia Genetic Testing Patient Information Complete print Reset Form Primary Ciliary Dyskinesia Genetic Testing Patient Information Instructions Accurate interpretation reporting...
New communication process for CPT Code changes - Insights
Mayo Clinic Laboratories (MCL) is pleased to announce an essential update to our CPT code communication process and website layout. This change is designed to bring timely notifications for accurate billing...