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TOPI - Overview: Topiramate, Serum

Monitoring serum concentrations of topiramate Assessing compliance Assessing potential toxicity

URCU - Overview: Uric Acid, 24 Hour, Urine

Assessment and management of patients with kidney stones, particularly uric acid stones

VITE - Overview: Vitamin E, Serum

Monitoring of Vitamin E supplementation/treatment Potentially detecting Vitamin E overdoses

VIP - Overview: Vasoactive Intestinal Polypeptide, Plasma

Detecting vasoactive intestinal polypeptide-producing tumors in patients with chronic diarrheal diseases

PRSSZ - Overview: PRSS1 Gene, Full Gene Analysis, Varies

Confirmation of suspected clinical diagnosis of hereditary pancreatitis (HP) in patients with chronic pancreatitis Identification of familial PRSSI mutation to allow for predictive and diagnostic testing in family members

AMTRP - Overview: Amitriptyline and Nortriptyline, Serum

Monitoring amitriptyline and nortriptyline serum concentrations during therapy Evaluating potential amitriptyline and nortriptyline toxicity May aid in evaluating patient compliance

RA1U - Overview: Alpha-1-Microglobulin, Random, Urine

Assessment of renal tubular injury or dysfunction using random urine specimens Screening for tubular abnormalities Detecting chronic asymptomatic renal tubular dysfunction (2)

MMLYP - Overview: Antimicrobial Susceptibility Panel, Yeast, Varies

Determining in vitro quantitative antifungal susceptibility (minimum inhibitory concentration) of non-fastidious yeast As an aid in the management of certain circumstances, such as: -Refractory oropharyngeal infections due to Candida...

ASB - Overview: Arsenic, Blood

Detecting acute or very recent arsenic exposure Monitoring the effectiveness of therapy This test is not useful for evaluation of chronic arsenic exposure.

MMLRG - Overview: Antimicrobial Susceptibility, Acid-Fast Bacilli, Rapidly Growing, Varies

Determination of susceptibility of rapidly growing mycobacteria to the antimicrobial agents on the test panel

AMMO - Overview: Ammonium, 24 Hour, Urine

Diagnosis of the cause of acidosis Diagnosis and treatment of kidney stones

F_9 - Overview: Coagulation Factor IX Activity Assay, Plasma

Diagnosing deficiencies, particularly hemophilia B (Christmas disease) Assessing the impact of liver disease on hemostasis Investigation of a prolonged activated partial thromboplastin time

CTU - Overview: Creatinine, 24 Hour, Urine

Calculation of creatinine clearance, a measure of renal function, when used in conjunction with serum creatinine

PDSUX - Overview: Drug Screen, Prescription/Over the Counter, Chain of Custody, Random, Urine

Qualitative detection and identification of prescription or over-the-counter drugs frequently found in drug overdose or used with a suicidal intent Providing, when possible, the identification of all drugs in the specimen This test is...

DSS - Overview: Drug Screen, Prescription/Over the Counter, Serum

Detection and identification of prescription or over the counter drugs frequently found in drug overdose or used with a suicidal intent Qualitatively identifying drugs present in the specimen; quantification of identified drugs, when...

ANCA2 - Overview: Cytoplasmic Neutrophil Antibodies, Inflammatory Bowel Disease Panel, Serum

Measurement of antineutrophil cytoplastic antibodies as a part of a profile to aid in distinguishing between ulcerative colitis and Crohn disease in patients for whom the specific diagnosis is unclear based on endoscopic, pathologic, and...

CLOM - Overview: Clomipramine, Serum

Determining whether a poor therapeutic response is attributable to noncompliance Monitoring serum concentration of clomipramine and norclomipramine to assist in optimizing the administered dose

FVAG - Overview: Fungal Culture, Vaginal

Monitoring therapy for vulvovaginitis Managing chronic recurring disease Determining the etiology of infectious vaginitis when other tests have been uninformative

THEVI - Overview: Hemoglobinopathy Interpretation

Interpretation of results for the evaluation of thalassemias and hemoglobinopathies Evaluation of microcytosis Extensive and economical diagnosis and classification of hemoglobinopathies or thalassemia including complex...

MMAP - Overview: Methylmalonic Acid, Quantitative, Plasma

Evaluating children with signs and symptoms of methylmalonic acidemia using plasma specimens Evaluating individuals with signs and symptoms associated with a variety of causes of vitamin B12 (cobalamin) deficiency

MAGU - Overview: Magnesium, 24 Hour, Urine

Assessing the cause of abnormal serum magnesium concentrations using a 24-hour urine collection Determining whether nutritional magnesium loads are adequate Calculating urinary calcium oxalate and calcium phosphate supersaturation and...

IMIPR - Overview: Imipramine and Desipramine, Serum

Monitoring imipramine and desipramine concentrations during therapy Evaluating potential imipramine and desipramine toxicity May aid in evaluating patient compliance

HYPOG - Overview: Hypoglycemic Agent Screen, Serum

Evaluation of suspected insulinoma characterized by hypoglycemia and increased serum insulin concentration Detecting drugs that stimulate insulin secretion Drugs detected by this procedure are: -The first-generation sulfonylureas:...

FIBTP - Overview: Fibrinogen, Plasma

Detecting increased or decreased fibrinogen (factor I) concentration of acquired or congenital origin Monitoring severity and treatment of disseminated intravascular coagulation and fibrinolysis

CLFIB - Overview: Fibrinogen, Clauss, Plasma

Detecting increased or decreased fibrinogen (factor 1) concentration of acquired or congenital origin Monitoring severity and treatment of disseminated intravascular coagulation and fibrinolysis

GQ1ES - Overview: Ganglioside GQ1b Antibody, IgG, ELISA, Serum

Evaluating patients with an underlying demyelinating neuropathy Supporting the diagnosis of a ganglioside GQ1b IgG-related disorder

MMAS - Overview: Methylmalonic Acid, Quantitative, Serum

Evaluating children with signs and symptoms of methylmalonic acidemia using serum specimens Evaluating individuals with signs and symptoms associated with a variety of causes of vitamin B12 (cobalamin) deficiency

MPA - Overview: Mycophenolic Acid, Serum

Monitoring therapy to ensure adequate blood levels and avoid over-immunosuppression

MEVI - Overview: Methemoglobinemia Interpretation

Interpretation of the methemoglobinemia evaluation results Diagnosis of methemoglobinemia and sulfhemoglobinemia and possible hereditary (congenital) causes Differentiation of methemoglobinemia and sulfhemoglobinemia from other causes of...

OXYCX - Overview: Oxycodone with Metabolite Confirmation, Chain of Custody, Random, Urine

Detection and quantification of oxycodone, oxymorphone, noroxycodone, and noroxymorphone in urine Chain of custody is required whenever the results of testing could be used in a court of law. Its purpose is to protect the rights of the...

PPAP - Overview: Parental Sample Prep for Prenatal Microarray Testing, Blood

Preparing parental blood specimen for possible confirmation testing if an abnormality is detected on the prenatal array sample DNA extraction of the maternal blood specimen used for maternal cell contamination testing

MALCT - Overview: Plasmodium Percent Parasitemia Reflex, Varies

Calculating percent parasitemia, which can be used to predict prognosis and monitor response to treatment for patients with malaria

PTSC - Overview: Prothrombin Time (PT), Plasma

Screening to identify a deficiency of one or more of the clotting factors of the extrinsic coagulation system (I, II, V, VII, X) due to hereditary deficiency or acquired conditions such as liver disease, vitamin K deficiency, or a specific...

PCAB - Overview: Parietal Cell Antibodies, IgG, Serum

Evaluating patients suspected of having pernicious anemia or autoimmune-mediated deficiency of vitamin B12 with or without megaloblastic anemia

SPAGR - Overview: Special Red Cell Antigen Typing, Whole Blood

Additional proof of alloantibody specificity Determining possible antibody specificities in complex cases This test is not useful for the purpose of establishing paternity

TB2LN - Overview: Susceptibility, Mycobacterium tuberculosis Complex, Second Line, Varies

Determination of Mycobacterium tuberculosis complex minimal inhibitory concentrations to second-line antimicrobial agents

TRYPP - Overview: Tryptophan, Plasma

Investigating inadequate tryptophan intake and monitoring dietary treatment

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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...

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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....

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