Coding Ahead
CasePilot
Medical Coding Assistant
Case2Code
Search and Code Lookup Tool
RedactPHI
HIPAA-Compliant PHI Redaction
DetectICD10CM
ICD-10-CM Code Detection
Log in Register free account
1 code page views remaining. Guest accounts are limited to 1 page view. Register free account to get 5 more views.
Log in Register free account

Official Description

3D rendering with interpretation and reporting of computed tomography, magnetic resonance imaging, ultrasound, or other tomographic modality with image postprocessing under concurrent supervision; requiring image postprocessing on an independent workstation

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 76377 refers to the process of 3D rendering that involves the interpretation and reporting of images obtained from various tomographic modalities, such as computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, or other similar imaging techniques. This procedure is characterized by the use of advanced image postprocessing techniques that are conducted on an independent workstation. The 3D rendering process is essential for creating detailed visual representations of anatomical structures, which can significantly aid in treatment planning and diagnostic assessments. During this procedure, a physician or a specially trained technologist performs complex rendering techniques, which may include shaded surface rendering, volumetric rendering, maximum intensity projections (MIPs), fusion imaging, and quantitative analysis of the images. It is important to note that if the rendering and postprocessing are carried out by a technologist, the physician must provide concurrent supervision to ensure accuracy and compliance with medical standards. The results of this intricate process are documented in a written report that interprets the findings from the image postprocessing, thereby providing valuable insights for clinical decision-making.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 76377 is indicated for various clinical scenarios where detailed anatomical visualization is required. The following conditions may warrant the use of this advanced imaging technique:

  • Complex Anatomical Assessments 3D rendering is utilized to provide a comprehensive view of intricate anatomical structures, which is crucial for surgical planning and intervention.
  • Oncology Evaluations In cancer treatment planning, 3D imaging helps in accurately delineating tumor boundaries and assessing the relationship of tumors to surrounding tissues.
  • Trauma Evaluations In cases of trauma, 3D rendering assists in visualizing fractures and soft tissue injuries, facilitating better management strategies.
  • Preoperative Planning Surgeons may rely on 3D rendered images to strategize surgical approaches and anticipate potential complications.

2. Procedure

The procedure for CPT® Code 76377 involves several key steps that ensure the effective rendering of 3D images from tomographic data. The following outlines the procedural steps:

  • Image Acquisition Initially, images are obtained from a tomographic modality such as CT, MRI, or ultrasound. These images serve as the foundational data for the subsequent rendering process.
  • Image Postprocessing The acquired images undergo complex postprocessing techniques on an independent workstation. This step may involve various rendering methods, including shaded surface rendering, volumetric rendering, and maximum intensity projections (MIPs), which enhance the visualization of the anatomical structures.
  • Concurrent Supervision During the rendering process, a physician must provide concurrent supervision if a technologist is performing the rendering. This supervision is critical to ensure the accuracy and quality of the rendered images.
  • Interpretation and Reporting After the rendering is completed, the physician interprets the results and compiles a written report. This report details the findings from the image postprocessing and provides insights that are essential for clinical decision-making.

3. Post-Procedure

Post-procedure care following the 3D rendering process typically involves reviewing the written report generated from the image interpretation. Physicians may discuss the findings with the patient and other healthcare providers to determine the next steps in treatment or management. Additionally, the rendered images may be stored for future reference or comparison in ongoing patient care. It is essential to ensure that all documentation is complete and accurately reflects the findings to support any necessary follow-up actions or interventions.

Short Descr 3D RENDER W/INTRP POSTPROCES
Medium Descr 3D RENDERING W/INTERP&POSTPROC DIFF WORK STATION
Long Descr 3D rendering with interpretation and reporting of computed tomography, magnetic resonance imaging, ultrasound, or other tomographic modality with image postprocessing under concurrent supervision; requiring image postprocessing on an independent workstation
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Items and Services Packaged into APC Rates
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) I4B - Imaging/procedure - other
MUE 2
CCS Clinical Classification 226 - Other diagnostic radiology and related techniques
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
GC This service has been performed in part by a resident under the direction of a teaching physician
TC Technical component; under certain circumstances, a charge may be made for the technical component alone; under those circumstances the technical component charge is identified by adding modifier 'tc' to the usual procedure number; technical component charges are institutional charges and not billed separately by physicians; however, portable x-ray suppliers only bill for technical component and should utilize modifier tc; the charge data from portable x-ray suppliers will then be used to build customary and prevailing profiles
FY X-ray taken using computed radiography technology/cassette-based imaging
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
RT Right side (used to identify procedures performed on the right side of the body)
MG The order for this service does not have applicable appropriate use criteria in the qualified clinical decision support mechanism consulted by the ordering professional
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
GA Waiver of liability statement issued as required by payer policy, individual case
GZ Item or service expected to be denied as not reasonable and necessary
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
LT Left side (used to identify procedures performed on the left side of the body)
ME The order for this service adheres to appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
GW Service not related to the hospice patient's terminal condition
MH Unknown if ordering professional consulted a clinical decision support mechanism for this service, related information was not provided to the furnishing professional or provider
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
CR Catastrophe/disaster related
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
95 Synchronous telemedicine service rendered via a real-time interactive audio and video telecommunications system: synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that would be sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. modifier 95 may only be appended to the services listed in appendix p. appendix p is the list of cpt codes for services that are typically performed face-to-face, but may be rendered via a real-time (synchronous) interactive audio and video telecommunications system.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
ET Emergency services
FS Split (or shared) evaluation and management visit
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
JZ Zero drug amount discarded/not administered to any patient
MA Ordering professional is not required to consult a clinical decision support mechanism due to service being rendered to a patient with a suspected or confirmed emergency medical condition
MC Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of electronic health record or clinical decision support mechanism vendor issues
MF The order for this service does not adhere to the appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
PD Diagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 days
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
QJ Services/items provided to a prisoner or patient in state or local custody, however the state or local government, as applicable, meets the requirements in 42 cfr 411.4 (b)
QQ Ordering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing professional
Date
Action
Notes
2021-01-01 Note Guidelines changed.
2013-01-01 Changed Description changed. Guideline information changed.
2006-01-01 Added First appearance in code book in 2006.
Code
Description
Code
Description
Code
Description
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"