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Computed tomography (CT), commonly referred to as a CT scan, is a diagnostic imaging procedure that utilizes advanced X-ray technology and computer processing to create detailed cross-sectional images of specific areas within the body. In the context of CPT® Code 70491, the focus is on the soft tissues of the neck. During this procedure, the patient is carefully positioned on a specialized CT examination table. The process begins with an initial scan to establish the starting position for the imaging. Following this, the CT scan is conducted as the table gradually moves through the scanner. This movement allows multiple X-ray beams and electronic detectors to rotate around the neck region, capturing various angles and measuring the amount of radiation absorbed by the tissues. The data collected is then processed by a computer program, which generates two-dimensional images that represent the soft tissues of the neck. These images are displayed on a monitor for the physician's review. The physician may analyze the images in real-time and can request additional scans if further detail is needed for specific areas of interest. It is important to note that CPT® Code 70491 specifically applies when intravenous contrast material is administered prior to the CT scan, enhancing the visibility of structures within the neck. For cases where no contrast is used, CPT® Code 70490 is applicable, and for situations where a non-contrast scan is followed by a contrast-enhanced scan, CPT® Code 70492 should be utilized. The physician is responsible for interpreting the findings from the CT scan, documenting any abnormalities, and providing a comprehensive written report of the results.
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The indications for performing a computed tomography (CT) scan of the soft tissues of the neck with contrast material (CPT® Code 70491) include the following:
The procedure for conducting a CT scan of the soft tissues of the neck with contrast material involves several key steps:
After the CT scan is completed, the patient may be monitored briefly to ensure there are no immediate adverse reactions to the contrast material. The physician will interpret the findings from the CT images, noting any abnormalities or significant observations. A comprehensive written report will be generated, summarizing the results of the scan and any recommendations for further evaluation or treatment if necessary. Patients are typically advised to drink plenty of fluids post-procedure to help flush the contrast material from their system. Any specific post-procedure instructions or follow-up appointments will be communicated to the patient based on the findings of the scan.
| Short Descr | CT SOFT TISSUE NECK W/DYE | Medium Descr | CT SOFT TISSUE NECK W/CONTRAST MATERIAL | Long Descr | Computed tomography, soft tissue neck; with contrast material(s) | 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) | 4 - Special payment adjustment rules on the technical component (TC) of multiple diagnostic imaging 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 | 88 - | APC Status Indicator | Codes That May Be Paid Through a Composite APC | ASC Payment Indicator | Radiology service paid separately when provided integral to a surgical procedure on ASC list; payment based on OPPS relative payment weight. | Type of Service (TOS) | 4 - Diagnostic Radiology | Berenson-Eggers TOS (BETOS) | I2A - Advanced imaging - CAT/CT/CTA: brain/head/neck | MUE | 1 | CCS Clinical Classification | 180 - Other CT scan |
This is a primary code that can be used with these additional add-on codes.
| 0722T | Add On Code MPFS Status: Carrier Priced APC S Quantitative computed tomography (CT) tissue characterization, including interpretation and report, obtained with concurrent CT examination of any structure contained in the concurrently acquired diagnostic imaging dataset (List separately in addition to code for primary procedure) |
| 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 | 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). | 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 | 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 | 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 | ME | The order for this service adheres to appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional | Q1 | Routine clinical service provided in a clinical research study that is in an approved clinical research study | Ordering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing professional | 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. | 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 | 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 | 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. | CT | Computed tomography services furnished using equipment that does not meet each of the attributes of the national electrical manufacturers association (nema) xr-29-2013 standard | 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 | GA | Waiver of liability statement issued as required by payer policy, individual case | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service | 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 | CR | Catastrophe/disaster related | GZ | Item or service expected to be denied as not reasonable and necessary | 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 | AQ | Physician providing a service in an unlisted health professional shortage area (hpsa) | 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 | XP | Separate practitioner, a service that is distinct because it was performed by a different practitioner | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure | 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. | 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). | 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. | 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 | FY | X-ray taken using computed radiography technology/cassette-based imaging | GQ | Via asynchronous telecommunications system | GV | Attending physician not employed or paid under arrangement by the patient's hospice provider | GW | Service not related to the hospice patient's terminal condition | KX | Requirements specified in the medical policy have been met | LT | Left side (used to identify procedures performed on the left side of the body) | MB | Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of insufficient internet access | MD | Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of extreme and uncontrollable circumstances | Q0 | Investigational clinical service provided in a clinical research study that is in an approved clinical research study | Q3 | Live kidney donor surgery and related services | 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) | RT | Right side (used to identify procedures performed on the right side of the body) | U6 | Medicaid level of care 6, as defined by each state | UD | Medicaid level of care 13, as defined by each state | XE | Separate encounter, a service that is distinct because it occurred during a separate encounter |
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| 2003-01-01 | Changed | Code description changed. |
| Pre-1990 | Added | Code added. |
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