internal medicine CPT codes

Most Used Internal Medicine CPT Codes 2023

Medical billing and coding play a crucial role in healthcare, ensuring accurate reimbursement and streamlined operations. Among the various code sets used in healthcare, Current Procedural Terminology (CPT) codes are paramount. For internal medicine practitioners, CPT codes facilitate the reporting and billing of various medical services and procedures. As we delve into 2023, let’s explore the most commonly used internal medicine CPT codes of the year, shedding light on their significance and impact on medical practices.

Evaluation and Management (E/M) Codes

Evaluation and Management codes are the backbone of internal medicine billing, representing the core services provided by physicians during patient encounters. The most frequently used E/M codes in 2023 include:

99213: Office or Other Outpatient Visits

CPT code 99213 is utilized for established patient visits in the office or outpatient setting. This code covers a significant portion of routine encounters, where physicians evaluate and manage common medical conditions. It involves a detailed history, a comprehensive examination, and medical decision-making of low to moderate complexity.

99214: Established Patient, Comprehensive Visit

Code 99214 is reported for comprehensive visits with established patients. Physicians often use this code when the evaluation requires a more in-depth analysis, and the medical decision-making is of moderate complexity. These visits are crucial for managing chronic conditions and complex medical cases.

Laboratory and Pathology Codes

Laboratory and pathology services are integral to diagnosing and monitoring medical conditions. In 2023, the following CPT codes are among the most frequently utilized in internal medicine practices:

80061: Lipid Panel

The lipid panel (CPT code 80061) is extensively used to assess lipid levels in patients. It measures total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides. Monitoring lipid profiles is vital for managing cardiovascular health, making this code essential in internal medicine practices.

85025: Complete Blood Count (CBC)

The CBC (CPT code 85025) is a standard test used to evaluate overall health and detect a wide range of disorders, including anemia and infections. It provides valuable insights into the patient’s general health and guides further diagnostic and treatment decisions.

Immunization Administration Codes

Immunizations are a cornerstone of preventive medicine, safeguarding patients against various infectious diseases. Healthcare providers frequently administer vaccines, and the corresponding CPT codes are essential for proper reimbursement. In 2023, the following administration codes are commonly used:

90471: Immunization Administration (1st Vaccine)

Code 90471 is reported when a patient receives their initial vaccine. It includes counseling on vaccine-related risks and benefits and the actual administration of the vaccine. This code is crucial for vaccination-focused medical practices.

90472: Immunization Administration (Each Additional Vaccine)

When a patient receives multiple vaccines during the same visit, CPT code 90472 is used to report the administration of each additional vaccine. This code ensures proper reimbursement for the time and resources involved in administering multiple immunizations.

Chronic Care Management Codes

As the focus on chronic disease management grows, so does the utilization of chronic care management CPT codes. These codes support the provision of non-face-to-face services for patients with chronic conditions. The frequently employed codes in 2023 include:

99490: Chronic Care Management Services

CPT code 99490 encompasses non-face-to-face services provided to patients with two or more chronic conditions. These services include comprehensive care planning, medication management, and coordination of care with other healthcare professionals.

99487: Complex Chronic Care Management Services

Complex chronic care management services (CPT code 99487) are used when patients have significant medical complexity requiring substantial time and resources. This code reflects the additional care and attention needed for patients with intricate health needs.

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Transitional Care Management Codes

Transitional care management codes are vital in ensuring a smooth transition for patients as they move from one healthcare setting to another. In 2023, the following codes are commonly employed:

99495: Transitional Care Management (TCM) Services

CPT code 99495 is used for providing transitional care management services to patients who are discharged from an inpatient facility and require medical follow-up. These services help prevent readmissions and ensure continuity of care.

99496: Transitional Care Management (TCM) Services with High Medical Complexity

Code 99496 is reported when the transitional care management services required are of higher complexity, such as patients with multiple comorbidities or those at higher risk of complications post-discharge.

Preventive Medicine Counseling and Screening Codes

Preventive medicine is a fundamental aspect of internal medicine, focusing on disease prevention and early detection. The following CPT codes are frequently utilized in preventive medicine services:

99401: Preventive Counseling – Individual

CPT code 99401 is used when physicians provide individualized counseling and guidance to patients on health behavior changes. This may include counseling on nutrition, exercise, smoking cessation, and other preventive measures.

99381: Initial Preventive Medicine Evaluation – New Patient

For new patients seeking preventive medicine services, code 99381 is employed. It covers a comprehensive evaluation, risk assessment, and counseling to promote a healthy lifestyle and prevent potential health issues.


The landscape of internal medicine CPT codes is ever-evolving, with new codes introduced and existing ones revised annually. In 2023, evaluation and management codes continue to be the most frequently used, reflecting the essential role of primary care in healthcare. Additionally, laboratory and pathology codes, immunization administration codes, chronic care management codes, transitional care management codes, and preventive medicine counseling and screening codes all play pivotal roles in delivering quality healthcare services to patients.

For internal medicine practices, a thorough understanding of the most commonly used CPT codes of 2023 is crucial for accurate billing, efficient reimbursement, and the overall success of the medical practice. As medical advancements and healthcare policies continue to shape the industry, practitioners must stay vigilant in adapting to these changes to provide the best possible care for their patients.

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