115 A PPEN D I X B Glossary of Common Coding Acronyms AAP American Academy of Pediatrics AHA American Hospital Association AMA American Medical Association ASC ambulatory surgery center CF conversion factor CLIA Clinical Laboratory Improvement Amendments CMS Centers for Medicare & Medicaid Services COCN Committee on Coding and Nomenclature CPT® Current Procedural Terminology® EHR electronic health record E/M evaluation and management EPSDT Early and Periodic Screening, Diagnostic, and Treatment FDA US Food and Drug Administration GPCI geographic practice cost index HCPCS Healthcare Common Procedure Coding System HIPAA Health Insurance Portability and Accountability Act of 1996 ICD-10-CM International Classification of Diseases, 10th Revision, Clinical Modification MPFS Medicare Physician Fee Schedule MUE Medically Unlikely Edit NCCI National Correct Coding Initiative NDC National Drug Code NEC Not elsewhere classifiable. When used in the ICD-10-CM alphabetic index, NEC indicates the index is pointing to an “other specified” code in the tabular list. Other specified codes are used when a specific code is not available for a condition. NOC Not otherwise classified NOS Not otherwise specified. This abbreviation is the equivalent of unspecified. NUCC National Uniform Claim Committee OPPS Outpatient Prospective Payment System PCP primary care professional PTP procedure-to-procedure (code edits) QHP qualified health care professional (eg, advanced practice registered nurse, physician assistant) RVU relative value unit
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