CPT® Codes: What Are They, Why Are They Necessary, and How Are They Developed? (2024)

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CPT® Codes: What Are They, Why Are They Necessary, and How Are They Developed? (1)

Adv Wound Care (New Rochelle). 2013 Dec; 2(10): 583–587.

PMCID: PMC3865623

PMID: 24761332

Peggy Dotson*

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Abstract

Qualified healthcare professionals (QHPs) need to identify the professional services they provide and to report those services in a way that can be universally understood by institutions, private and government payers, researchers, and others interested parties. The QHPs' data are used to track healthcare utilization, identify services for payment, and to gather statistical healthcare information about populations. Each year, in the United States, healthcare insurers process over 5 billion claims for payment.1 To ensure that healthcare data are captured accurately and consistently and that health claims are processed properly for Medicare, Medicaid, and other health programs, a standardized coding system for medical services and procedures is essential. The Current Procedural Terminology (CPT®) system, developed by the American Medical Association (AMA), is used for just these purposes. The AMA system provides a standard language and numerical coding methodology to accurately communicate across many stakeholders, including patients, the medical, surgical, diagnostic, and therapeutic services provided by QHPs. The CPT descriptive terminology and associated code numbers provide the most widely accepted medical nomenclature used to report medical procedures and services for processing claims, conducting research, evaluating healthcare utilization, and developing medical guidelines and other forms of healthcare documentation.

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Peggy Dotson, RN, BS

Background

History of Current Procedural Terminology coding development

The first publication, in 1966, of the American Medical Association (AMA) Current Procedural Terminology (CPT®) edition of standardized codes and terms was a means to code procedures (mainly surgical) for medical records, insurance claims, and information for statistical purposes.

By 1970, the AMA had broadened the system of terms and classification codes to include diagnostic and therapeutic procedures in surgery, medicine, and the specialties as well as procedures relating to internal medicine. This timeframe also coincided with the introduction of the five-digit numeric coding system. With the release of the fourth edition of CPT in 1977, the AMA introduced a system for periodic updating of the codes to keep up with the ever-changing medical environment.

In 1983, CPT was adopted as part of the Centers for Medicare & Medicaid Services (CMS), Healthcare Common Procedure Coding System (HCPCS). This HCPCS code set is divided into two principal subsystems: (1) Level I of the HCPCS, which comprised the CPT and (2) Level II of the HCPCS (see Marcia Nusgart's article).1,2

Level I CPT codes are the numerical codes used primarily to identify medical services and procedures furnished by qualified healthcare professionals (QHPs). CPT does not include codes regularly billed by medical suppliers other than QHPs to report medical items or services. The AMA is responsible for all decisions for additions, deletions, or revisions of the CPT codes [Level I HCPCS code set]. CPT codes are updated annually.

In 1983, CMS mandated that CPT codes be used to report services for Part B of the Medicare Program and in 1986 required state Medicaid programs to also use the CPT codes. As part of the Omnibus Budget Reconciliation Act in 1987, CMS mandated use of CPT for reporting outpatient hospital surgical procedures. As part of the Health Insurance Portability and Accountability Act (HIPAA) of 1996, the Department of Health and Human Services designated CPT and HCPCS as the national standards for electronic transaction of healthcare information.

Today, the CPT coding system is the preferred system for coding and describing healthcare services and procedures in federal programs (Medicare and Medicaid) and throughout the United States by private insurers and providers of healthcare services.

Types of CPT codes

The CPT code can be identified by one of the following three categories.

Category I CPT codes describe distinct medical procedures or services furnished by QHPs and are identified by a 5-digit numeric code [e.g., 29580: Unna boot]. New Category I CPT codes are released annually.

Category II CPT codes are supplemental tracking codes, also referred to as performance measurement codes. These numeric alpha codes [e.g., 2029F: complete physical skin exam performed] are used to collect data related to quality of care. Category II codes are released three times a year in March, July, and November by the CPT Editorial Panel.

Category III CPT codes are temporary tracking codes for new and emerging technologies to allow data collection and assessment of new services and procedures. They are used to collect data in the FDA approval process or to substantiate widespread usage of the new and emerging technology to justify establishment of a permanent Category I CPT code. Category III CPT codes are issued in a numeric alpha format [e.g., 0307T: near-infrared spectroscopy study for lower extremity wounds].

New Category III CPT codes are released biannually (January and July) with a 6-month delay before activation for implementation in the Medicare system. Codes released on January 1st are effective July 1st, and codes released on July 1st are effective January 1st. The codes usually remain active for five years from the date of implementation, if the code has not been accepted for placement in the Category I section of CPT.

Obtaining a CPT Level III code requires less clinical data and has a shorter review timeframe. It allows billing and tracking through the local and regional contractors for Medicare and other payers. There are no assigned fees to these codes, but payment is available at the discretion of the Insurance Carriers or Medicare contractors. When considering payment, the Medicare contractors and insurers consider evidence of effectiveness, improved outcomes, and potential cost savings.

Criteria used by the CPT Advisory Committee and the CPT Editorial Panel for evaluating Category III code for emerging technology include any one of the following for consideration:

  • 1. A protocol for a study of procedures being performed.

  • 2. Support from the specialties that would use the procedure.

  • 3. Availability of U.S. peer-reviewed literature.

  • 4. Descriptions of current U.S. trials outlining the efficacy of the procedure.

Discussion

Who manages the CPT process?

The responsibility to update or modify code descriptors, coding rules, and guidelines for the CPT code set lies with the AMA CPT Editorial Panel, authorized by the AMA Board of Trustees. The panel comprised 17 members [11 physicians nominated by the national medical specialty societies; 4 physicians nominated from the Blue Cross and Blue Shield Association, America's Health Insurance Plans, the American Hospital Association, and the CMS; and two seats reserved for members of the CPT Health Care Professionals Advisory Committee (HCPAC)]. Five of these members serve as the panel's Executive Committee. In addition, the CPT Advisory Committee supports the panel. Members of CPT Advisory committee are primarily physicians nominated by the national medical specialty societies represented in the AMA House of Delegates as well as the AMA HCPAC, organizations representing limited license practitioners and other allied health professionals. The Performance Measures Advisory Group, which represents various organizations concerned with performance measures, also provides expertise.

How is a new code developed?

Any individual QHP, medical specialty society, hospital, third-party payer, and other interested party may submit an application for changes to CPT for new or revised codes to the CPT Editorial Panel. This ongoing process has a schedule for submission deadlines and meetings of the CPT Panel, which can be found on the AMA site.3 It is important to understand that an applicant needs to carefully plan to submit their request in the appropriate timeframe to coincide with the scheduled meetings for the CPT Editorial Panel reviews.

Step 1: AMA staff determines if the request is new

If the Editorial Panel has already reviewed the request, the staff will notify the requestor of the panel's coding recommendation. If the request is a new issue or includes significant new information on an item that the panel reviewed previously, the application moves to step 2.

Step 2: Refer application to the CPT Advisory Committee for evaluation and commentary

The process allows at least 3 months for the AMA staff to prepare all the submitted materials and dispense them to the Editorial Panel reviewers. Steps 1 and 2 are complete when all appropriate CPT Advisors have responded and all information requested of an applicant has been provided to AMA.

Step 3: Refer application to the CPT Editorial Panel

The 17 member CPT Editorial Panel meets three times each year and addresses nearly 350 major topics per year, usually involving more than 3,000 votes on individual items.4

  • • AMA staff prepare an agenda item that includes the application, compiled CPT Advisor comments, and a ballot for decision by the CPT Editorial Panel.

  • • Thirty days before a scheduled meeting, the panel members receive the agenda documents and the CPT Advisor comments. The panel members can confer with experts as appropriate.

  • • If an applicant does not receive the CPT Advisor support, then the applicant is notified 14 days before each CPT Editorial Panel meeting. Applicants can withdraw their applications up until the agenda item is called at the meeting.

  • • Applications that have not received any CPT Advisor support will be presented to the CPT Editorial Panel for discussion and possible decision.

Step 4: CPT Editorial Panel takes an action and preliminary approvals

If applying for a Category I or Category III code, the CPT Editorial Panel votes and determines into which category the code(s) should be assigned. A decision can result in one of the following four outcomes:

  • 1. Add a new code or revise the existing nomenclature; this change would appear in a forthcoming volume of the CPT Book.

  • 2. Refer to a workgroup for further study.

  • 3. Postpone to a future meeting [to allow submittal of additional information in a new application].

  • 4. Reject the request.

Step 5: AMA staff inform the applicant of the CPT Editorial Panel's decision

Applicants or other interested parties can seek reconsideration of the panel's decision. Information of this process is available on the AMA/CPT website.5

Step 6: Refer code to AMA/Specialty Society Relative Value Update Committee (RUC)

Once the new/revised CPT codes are approved by the CPT Editorial Panel, the code is then referred to the RUC, which will conduct a survey of QHPs from relevant medical specialties that provide the service or procedure. This survey will measure the QHP work involved in performing the service/procedure to determine an accurate relative value recommendation for the service.6 The RUC committee schedule can be accessed at the AMA website.

Step 7: Implementation of the new/revised CPT code

  • • Category I service and procedure CPT codes are updated annually and effective for use on January 1 of each year, except for Category I vaccine product codes, Molecular Pathology, which are released January 1st or July 1st. The new CPT book, with the newly released codes, is released in the fall to allow for implementation on January 1.

  • • Category II codes are released for reporting three times yearly (March 15th, July 15th, and November 15th) to become effective three months subsequent to the date of release, allowing 3 months for implementation.

  • • Category III codes are released for reporting either January 1st or July 1st of a given CPT cycle and become effective six months subsequent to the date of release.

NOTE: This entire new CPT Code application process can take from 18 to 24 months.

What do the CPT Advisory Committee and CPT Editorial Panel need?

Success in obtaining a new or revised CPT code is dependent on understanding the process and preparing an application with the complete information required. Obtaining support from the appropriate medical community, society, or provider group that requires or endorses the need for the code is essential for the CPT approval process.

The major information requirements for a new or revised CPT code application include the following.

  • • A complete description of the procedure or service (e.g., describe in detail the skill and time involved. If a surgical procedure, include an operative report that describes the procedure in detail).

  • • A clinical vignette, which describes the typical patient and work provided by the physician/practitioner.

  • • The diagnosis of patients for whom this procedure/service would be performed.

  • • A copy(s) of peer reviewed articles published in the U.S. journals indicating the safety and effectiveness of the procedure.

  • • Frequency with which the procedure is performed and/or estimation of its projected performance.

  • • A copy(s) of additional published literature, which further explains the request (e.g., practice parameters/guidelines or policy statements on a particular procedure/service).

  • • Evidence of FDA approval of the drug or device used in the procedure/service if required.

  • • Rationale why the existing codes are not adequate and can any existing codes be changed to include these new procedures without significantly affecting the extent of the service?

Where can I find more information?

The AMA website has all the information available concerning the CPT process, access to the application forms, the schedule for the CPT Editorial Panel, and the reconsideration process forms.7

CPT is a registered trademark of the AMA.

Abbreviations and Acronyms

AMAAmerican Medical Association
CMSCenters for Medicare & Medicaid Services
CPTCurrent Procedural Terminology
HCPCSHealthcare Common Procedure Coding System
HIPAAHealth Insurance Portability and Accountability Act
QHPqualified healthcare professional

Author Disclosure and Ghostwriting

No competing financial interests exist. No ghostwriters were used to write this article.

About the Author

Peggy Dotson, RN, BS, earned her nursing diploma in 1971 at Our Lady of Lourdes School of Nursing (Camden, NJ), and graduated from Philadelphia University (Philadelphia, PA) in 1993 with a Bachelor's of Science degree. She has 9 years of experience in clinical practice working in surgical, coronary care, intensive care, and as a field trainer for the Mercer County Paramedic Project in New Jersey. She worked for 23 years in Bristol-Myers Squibb's ConvaTec Division in varying roles, including clinical trial monitor for ostomy, wound care, and incontinence devices; medical sales representative; sales management; international marketing; worldwide business development; and Director of Reimbursem*nt & Payer Alliances, analyzing the U.S. healthcare market and developing strategic approaches for the company. Since 2003, she is the owner and President of Healthcare Reimbursem*nt Strategy Consulting, which evaluates healthcare policy, coverage, coding, and payment issues, and the impact of reimbursem*nt on the healthcare market. She serves the Association for the Advancement of Wound Care (AAWC) as the Chair of the Regulatory Committee (2008 onward) and a member of the AAWC Quality Measure Task Force and Finance Committees. Since 2012, she serves on the Board of the Alliance for Wound Care Stakeholders.

References

1. U.S. Centers for Medicare and Medicaid Services: HCPCS—General Information. www.cms.gov/Medicare/Coding/MedHCPCSGenInfo/index.html

2. Nusgart M. HCPCS coding: an integral part of your reimbursem*nt strategy. Adv Wound Care. 2013;2:576. [PMC free article] [PubMed] [Google Scholar]

3. American Medical Association: CPT Editorial Panel Process—AMA/Specialty Society RVS Update Process. www.ama-assn.org/go/cpt-calendar

6. The American Gastroenterological Association: The RUC Process. www.gastro.org/practice/coding/the-ruc-process

Articles from Advances in Wound Care are provided here courtesy of Mary Ann Liebert, Inc.

CPT® Codes: What Are They, Why Are They Necessary, and How Are They Developed? (2024)

FAQs

CPT® Codes: What Are They, Why Are They Necessary, and How Are They Developed? ›

CPT codes don't only document specific medical procedures and services. They are also helpful for determining how much a patient should pay for the services they receive. The code will also determine how much the patient's health insurance will pay their healthcare provider.

What are CPT codes why are they necessary and how are they developed? ›

This system of terminology is the most widely accepted medical nomenclature used to report medical procedures and services under public and private health insurance programs. CPT is also used for administrative management purposes such as claims processing and developing guidelines for medical care review.

What is the purpose of the CPT codes? ›

The Current Procedural Terminology (CPT®) codes offer doctors and health care professionals a uniform language for coding medical services and procedures to streamline reporting, increase accuracy and efficiency.

What are three reasons for the development of procedure codes? ›

what are three reasons for the development of procedure codes? To track disease process, to classify the causes of death, to collect data for medical reason, and to evaluate hospital service ultilization. How and when were the CPT and HCPCS coding systems developed? What are level I HCPCS codes?

What is the purpose of the CPT codes quizlet? ›

The use of the CPT codes enables health care providers to communicate both effectively and efficiently with third-party payers (i.e., commercial insurance companies, Medicare, Medicaid) about the procedures and services provided to the patient.

How was CPT developed? ›

In 1965, the AMA recognized the need for common language and helped create the Current Procedural Terminology (CPT) system to describe medical services and procedures. The first edition of CPT was published in 1966 and, for the most part, was focused on surgery.

What is medical necessity and its importance to CPT coding? ›

When it comes to healthcare services, medical necessity guidelines are important for insurance coverage and correct coding rules. Medical necessity refers to the determination that a healthcare service or treatment is essential and appropriate for a patient's condition.

What is the purpose of a procedure code? ›

“Procedure” code is a catch-all term for codes used to identify what was done to or given to a patient (surgeries, durable medical equipment, medications, etc.). Understanding and identifying the codes relevant to one's study question is a key part of analyzing claims data.

What 3 things does the CPT code tell you? ›

CPT® Category I: The largest body of codes, consisting of those commonly used by providers to report their services and procedures. CPT® Category II: Supplemental tracking codes used for performance management. CPT® Category III: Temporary codes used to report emerging and experimental services and procedures.

Why is accurate CPT coding important? ›

Proper Medical Coding Ensures Accurate Reimbursem*nt

Common reasons for denials or rejections include: Incorrect patient information (such as name, DOB, insurance ID number, etc.) Incorrect codes (using confusing ICD, CPT, or HCPCS codes, for example) Incorrect provider information (address, name, etc.)

Why do we require having codes? ›

Hamming code is a method used for error correction in data transmission. It can detect and correct single-bit errors, ensuring that the data received matches the data sent. This makes communication systems more reliable by reducing the impact of errors.

What is the purpose of a procedure in coding? ›

Why use procedures? Program code is easier to read and understand when it is broken up into smaller sections. By breaking a program up into these sections, or procedures, code can be made shorter and simpler.

Why are codes important? ›

Coding Helps You Work Smartly And Efficiently

Coding is not only useful for technical roles, it also helps in non-coding jobs. When you know how to code and apply Computational Thinking, you can automate the operational progress or apply the way of thinking in marketing campaigns.

Why are CPT codes necessary? ›

The CPT descriptive terminology and associated code numbers provide the most widely accepted medical nomenclature used to report medical procedures and services for processing claims, conducting research, evaluating healthcare utilization, and developing medical guidelines and other forms of healthcare documentation.

How important is CPT? ›

In addition to ensuring accurate reimbursem*nt, CPT codes provide valuable data for healthcare providers and payers. They allow for analysis of healthcare trends, service utilization, and provider performance, which can inform decisions about healthcare policy and resource allocation.

What is the purpose of medical codes? ›

The purpose of medical coding is to convert patient records into a code that is “readable” by the insurance company so it knows how much it must reimburse the healthcare provider for services rendered.

What are the CPT codes? ›

Current Procedural Terminology (CPT®) codes provide a uniform nomenclature for coding medical procedures and services.

Who develops and maintains the CPT codes? ›

The CPT® Editorial Panel is responsible for maintaining the CPT code set. The Panel is authorized by the AMA Board of Trustees to revise, update, or modify CPT codes, descriptors, rules and guidelines. The Panel is composed of 21 members.

What is the purpose of HCPCS codes and why are they necessary? ›

HCPCS is a collection of standardized codes that represent medical procedures, supplies, products and services. The codes are used to facilitate the processing of health insurance claims by Medicare and other insurers.

Why were diagnosis codes developed? ›

The ICD is important because it provides a common language for recording, reporting and monitoring diseases. This allows the world to compare and share data in a consistent and standard way – between hospitals, regions and countries and over periods of time.

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