The American Medical Association (AMA) continues to evolve the Current Procedural Terminology (CPT®) code set to keep pace with rapid advancements in medical technology and clinical innovation. On December 30, 2025, the AMA released its biannual update to the CPT® Category III codes, introducing 28 new codes and revising four existing ones. These updates highlight emerging technologies, novel procedures, and evolving care delivery models that are shaping the future of healthcare.
For medical coders, revenue integrity specialists, and clinical documentation professionals, understanding these changes is essential—not only for accurate coding but also for staying ahead in an ever-changing healthcare landscape.
When Do the New Codes Take Effect?
Although the CPT® Editorial Panel approved these changes during its September 2025 meeting for the 2027 CPT® production cycle, all new codes and descriptor revisions will become effective July 1, 2026.
This timeline gives coding professionals, compliance teams, and providers valuable time to prepare for implementation, update coding tools, and train staff accordingly.
Major Update: 3D Modeling and Surface Mesh Technology (11 New Codes)
One of the most significant portions of this update focuses on digital 3D modeling and surface mesh applications, reflecting the growing role of personalized medicine and surgical planning.
According to CPT® guidelines, these new codes describe the transformation of traditional medical imaging (DICOM format) into surface mesh files, which can be further processed into clinically meaningful 3D digital models or physical 3D-printed replicas.
0559T–0562T: 3D-Printed Anatomical Models and Surgical Guides
0559T and +0560T report the creation of patient-specific 3D-printed anatomical models based on individualized imaging data.
0561T and +0562T describe the production of 3D-printed cutting or drilling guides used in precision surgery.
These codes support highly customized surgical planning, particularly in complex orthopedic, neurosurgical, and reconstructive procedures.
1030T–1035T: Final Anatomic Representations (FARs)
These are time-based codes that capture the effort involved in creating Final Anatomic Representations (FARs) from surface mesh files of patient-specific anatomy.
In practical terms, these codes document the conversion of imaging data into functional 3D digital models that clinicians can use for diagnosis, treatment planning, and simulation.
Other Notable New Category III Codes
Beyond 3D modeling, several other cutting-edge services received new Category III designations:
Advanced Diagnostics & Therapeutics
1043T – Point-of-care quantitative MRI test for liver assessment (without imaging)
1026T – Transvaginal laser photobiomodulation therapy for pelvic treatment
Respiratory & Critical Care
1027T–1029T – Transvenous phrenic nerve stimulation to activate the diaphragm in ventilated patients
Cardiology & Neurology
1036T – Noninvasive hemodynamic assessment
1039T – Connectomic analysis of prior multi-modal brain MRI
1041T – Advanced algorithmic analysis of EEG waveforms
Oncology & Regenerative Medicine
1037T – Histotripsy for malignant pancreatic tissue
1038T – Autologous muscle cell therapy
Pulmonology & Urology
1040T – Flexible bronchoscopy with bronchial cryotherapy
1042T – Implantation of absorbable urologic scaffold (add-on code with 55840, 55842, 55845, 55866)
Skin Substitutes & Heart Failure Monitoring
1044T–1049T – New skin substitute application codes
1050T–1053T – Subcutaneous heart failure decompensation monitoring codes
These additions reflect the growing emphasis on minimally invasive procedures, personalized treatment, and real-time patient monitoring.
Revisions to Existing Category III Codes (Effective July 1, 2026)
0805T and 0806T — Clarified Reporting Rules
These codes were revised to clarify that they represent transcatheter superior and/or inferior vena cava prosthetic valve implantation.
Important coding rule:
These codes should not be reported with diagnostic right heart catheterization codes on the same date, unless:
The procedures were performed in separate sessions,
Clinical necessity is clearly documented, and
Modifier 59 (Distinct Procedural Service) is appended appropriately.
0882T and 0883T — Descriptor Updates
The phrase “upper extremity” was removed from the code descriptors, and additional companion codes were added to improve reporting accuracy.
Category III Codes Do NOT Guarantee Payment
A crucial takeaway for medical coders and providers is that inclusion in the CPT® code set does not guarantee reimbursement.
Before reporting any Category III code, it is essential to:
Verify payer policies
Check prior authorization requirements
Confirm medical necessity documentation
Many insurers still classify Category III services as experimental or investigational.
Why Category III Codes Matter
Despite uncertain payment, Category III codes play a vital role in healthcare by:
Tracking utilization of emerging technologies
Supporting clinical research and outcomes analysis
Providing data to the FDA for approval processes
Laying the groundwork for future Category I codes and reimbursement
In essence, accurate reporting today helps shape coverage decisions tomorrow.
