Major CPT Code Changes in 2023: Practice Updates & Impact

The 2023 Current Procedural Terminology (CPT) handbook has officially been released by the American Medical Association (AMA). The AMA has added 102 new codes, deleted 68 codes, and revised 87 codes that now include comprehensive long descriptions. These new and updated codes officially went into effect on January 1, 2023.

Within the six major fields of the healthcare industry, substantial structural changes were enacted to modernize billing workflows and reflect technological innovations. For a deeper breakdown of code mechanics, explore our detailed explanation of the 2023 changes.

1. Evaluation and Management (E/M)

Within the Evaluation and Management (E/M) sector, the AMA enacted one new code, 26 code deletions, and 50 code revisions for the year. This marks the most comprehensive overhaul of inpatient and facility-based E/M coding since the 2021 office visit reforms.

Code 99418 has been added to address prolonged inpatient or observation E/M services. Many of the deleted codes stem directly from the consolidation of inpatient and observation care into unified coding bands. Key E/M revisions include:

• Office consultation codes revised to include “other outpatient” services provided.
• Home visit codes revised to encompass “residence” as an eligible place of service.
• Standardized total meeting time rules when using time as the basis for code selection.
• Clarification of hospital E/M codes to incorporate “inpatient or observation” care under single sets.

2. Surgical Procedure Updates

Substantial updates were applied across multiple anatomical systems within the Surgery section (CPT 10004–69990), impacting integumentary, musculoskeletal, cardiovascular, male genital, nervous, respiratory, urinary, and digestive procedures:

• Integumentary System: 3 new codes, 1 deletion, and 1 revision.
• Musculoskeletal System: 1 new code and 2 code revisions.
• Cardiovascular System: 7 new codes and 1 code revision.
• Male Genital System: 1 new specialized procedure code.
• Nervous System: 3 new codes and 14 extensive revisions.
• Respiratory System: 1 new code for targeted interventions.
• Urinary System: 2 code descriptor revisions.
• Digestive System: 17 new codes and 18 code deletions.

3. Radiology and Diagnostic Imaging

The Radiology section gained code 76883, which specifically describes ultrasound evaluation of nerves and accompanying anatomical structures in a single extremity. Additionally, existing codes 76882, 78803, and 78830–78832 received long descriptor revisions to clarify appropriate clinical scope and multi-detector SPECT imaging requirements.

4. Pathology and Laboratory Updates

The Pathology and Laboratory sector introduced 11 new codes and 3 code revisions. The revisions involved repositioning examples and descriptive terminology within the long descriptions to improve readability and prevent misinterpretation, while preserving the underlying clinical criteria of each diagnostic test.

5. Medicine Sector Modifications

The Medicine section gained 10 new codes and 7 code revisions. Notably:

• 3 Add-On Codes: Established for supplementary clinical services rendered alongside primary medical interventions.
• Behavioral Health Training: 2 new codes specifically address multiple-family group behavior and management training services.
• Vaccines & Immunizations: New product and administration codes created to reflect updated vaccine formulations.

6. Category III Emerging Technologies

In the Category III section—which houses temporary tracking codes for emerging technologies, services, and procedures—the AMA implemented 46 new codes, 23 deletions, and 2 revisions.

These 46 new Category III codes encompass a wide range of state-of-the-art clinical solutions, including:

• Digitization of glass microscope slides for digital pathology workflows.
• Virtual reality (VR) technology applications to assist with physical and cognitive therapy.
• Percutaneous insertion of a bioprosthetic valve into the femoral artery.
• Therapeutic induction of intra-brain hypothermia for neuroprotective care.

Impact on Billing Accuracy & Practice Reimbursements

With the extensive additions, deletions, and descriptor modifications across the 2023 CPT code set, reviewing clinical documentation templates and charge capture protocols is critical, as these coding updates directly impact billing accuracy and revenue integrity.

It is also vital to remember that while the AMA establishes new CPT codes, coverage and payment policies are determined individually by Medicare, Medicaid, and commercial payers. Proactive code reviews ensure that your billing department and clinical staff accurately document medical necessity, avoiding preventable denials and maintaining the legal integrity of your patient records.