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C1 Esterase Inhibitor C Reactive Protein C Reactive Protein High Sensitivity CA 125 CA 153 CA 19.9 CA 27.29 Caffeine Calcitonin Calcium Calcium Ionized Carbamazepine Carbon Dioxide Carbon Monoxide Carcinoembryonic Antigen Cardiac Marker Panel Cardiovascular Risk Panel Carotene CCP Antibody CD4 Enumeration Celiac Disease Panel Centromere Antibody Cephalothin Antibody Cerebrospinal Fluid Ceruloplasmin Chemistry Panels Chlamydia Detection Chloride Cholesterol Cholinesterase Clindamycin Resistance Clostridium Difficile Coagulation Factor Assays Coagulation Factor Inhibitor Coagulation Screen Cold Agglutinin Titer Colloid Osmotic Pressure Complement Profile Complete Blood Count Congenital Adrenal Hyperplasia Cord Blood Gases Cord Blood Studies Corticotropin Releasing Hormone Stimulation Test Cortisol Cortisol in Critical Illness Cortisol Salivary Cortisol Urine Free Cortrosyn Stimulation Test Cotinine Creatine Kinase Creatine Kinase MB Creatinine Creatinine Clearance Crossmatch CRP Cryoglobulin Cryptococcal Antigen Cryptosporidium Antigen Crystal Identification Cushing Syndrome Cyclosporine Cystic Fibrosis Cytogenetic Studies Cytomegalovirus Antibody Cytomegalovirus Culture Cytomegalovirus PCR Qualitative Cytomegalovirus PCR Quantitative

Chemistry Panels

In 1998 at HCFA's urging, the American Medical Association's CPT editorial board abolished the automated chemistry profile codes 80002-80019 and replaced them with four smaller disease/organ panels containing tests on Medicare's national roster of automated procedures. HCFA has steadily tightened requirements for panels, in particular stipulating that for a panel to be reimbursed, all of its component tests must be medically justified. Not surprisingly, the CPT 2000 manual once again contained significant changes to the organ/disease panels that laboratories had to implement on April 1, 2000.

Chemistry Tests	Comprehensive Metabolic	Renal Function	Basic Metabolic	Electrolyte Panel	Hepatic Function
Sodium	X	X*	X	X
Potassium	X	X*	X	X
Chloride	X	X*	X	X
CO2	X	X*	X	X
Anion Gap	X*	X*	X	X
BUN	X	X*	X
Creatinine	X	X*	X
Glucose	X	X*	X
Calcium	X	X*	X*
Phosphate		X*
Albumin	X	X*			X
Total Protein	X				X*
ALP	X				X
AST	X				X
ALT	X*				X
D. Bilirubin					X
T. Bilirubin	X				X

# Tests	14	10	8	4	7
2000 CPT	80053	80069	80048	80051	80076
1999 CPT	80054	80049,82310,82040, 84100	80049	80051	80058

* New tests added April 2000

If a physician decides that other automated tests, which are not included in one of these panels, are medically necessary for a patient, the additional tests should be ordered individually. If two panels are ordered that contain overlapping tests, duplicate tests must be eliminated prior to billing. All claims for physician office lab testing must contain an ICD-9 diagnosis code as medical justification for the tests. Patient records and chart notes should include supporting documentation.