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Difference between CPT and ICD Codes

Difference between CPT and ICD Codes

CPT and ICD codes are two of the most important tools in a medical billing specialist’s toolkit. However, many people don’t know the difference between the two. In this blog post, we will explore the differences between CPT and ICD codes, and explain why they are both important tools for medical billing specialists.

What is CPT Code?

CPT code is a five-digit numeric code used by physicians and other medical personnel to describe the procedures and services they have performed. The code is maintained by the American Medical Association ( AMA) and is updated on a yearly basis. CPT code has been adopted by many insurance companies as a way to standardize reimbursement for medical procedures. In some cases, CPT code may be used by government agencies to collect data on specific medical procedures.

CPT code can be divided into three main categories: evaluation and management, ancillary services, and surgical procedures. Each category is further divided into subcategories. For example, CPT code for an office visit would fall under the evaluation and management category, while CPT code for a laboratory test would fall under the ancillary services category. CPT code can be found in the CPT Manual, which is published by the AMA.

What is ICD Code?

ICD Code is the standard diagnostic tool for epidemiology, health management and clinical purposes. ICD is an abbreviation for the International Statistical Classification of Diseases and Related Health Problems. ICD Code is used to classify and code all diseases, disorders and symptoms recorded by clinicians and health authorities around the world. ICD Code provides a comprehensive approach to dealing with diseases, disorders and symptoms and is used in conjunction with national and international health information systems.

ICD Code is released every few years by the World Health Organization (WHO). The most recent release is ICD-10, which came into effect in 2015. ICD-11 is currently in development and is due to be released in 2018. ICD Code is important because it helps to ensure that diseases are accurately diagnosed, coded and reported worldwide. This aids in the development of effective treatments and preventative measures against diseases. ICD Code also allows for comparisons to be made between different countries in terms of disease burden and incidence. This information can then be used to improve global health outcomes.

Difference between CPT and ICD Codes

CPT and ICD Codes are two different types of codes used in coding medical diagnoses and procedures. CPT Codes are used to code medical procedures, while ICD Codes are used to code medical diagnoses. CPT Codes are developed by the Centers for Medicare and Medicaid Services (CMS), and ICD Codes are developed by the World Health Organization (WHO). CPT Codes are numeric, while ICD Codes are alphanumeric.

CPT Codes are updated annually, while ICD Codes are updated every three years. CPT Codes are used by insurance companies, while ICD Codes are used by both insurance companies and hospitals. CPT Codes can be either three, four, or five digits long, while ICD Codes can be either three or four digits long. When coding a diagnosis or procedure, both CPT and ICD Codes must be used.


The distinction between CPT and ICD codes is an important one to understand when billing medical services. By understanding the difference, you can ensure that your bills are processed correctly and that you receive appropriate payment for the services you provide.

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