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Thyroid imaging, commonly known as a thyroid scan, is a specialized nuclear medicine procedure designed to assess the anatomical and functional characteristics of the thyroid gland. This imaging technique involves the administration of radioactive iodine isotopes, which can be delivered either orally in liquid or capsule form or intravenously. The choice of administration route influences the timing of the imaging; if the radioactive tracer is ingested, the imaging is typically conducted several hours to 24 hours later, allowing sufficient time for the tracer to localize within the thyroid tissue. Conversely, if administered intravenously, imaging occurs approximately 30 minutes post-injection. During the procedure, the patient is positioned supine on an examination table with their head tilted back to optimize visualization of the thyroid gland. A gamma camera is utilized to capture a series of images, which may also include the vascular flow of the thyroid, if indicated. Following the imaging, a physician reviews the captured images and generates a comprehensive written report detailing the findings. Thyroid imaging can be performed in conjunction with thyroid uptake studies, which evaluate the functional capacity of the thyroid gland by measuring the absorption of iodine. This dual approach provides critical insights into both the structure and function of the thyroid, aiding in the diagnosis and management of various thyroid disorders.
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The procedure of thyroid imaging with quantitative uptake measurements is indicated for various clinical scenarios, including:
The thyroid imaging procedure involves several key steps to ensure accurate assessment of the thyroid gland's structure and function:
After the thyroid imaging and uptake studies are completed, patients may be advised to resume normal activities. There are typically no specific post-procedure care requirements, but patients should be informed about the potential for minor side effects related to the radioactive tracer, such as temporary discomfort at the injection site if administered intravenously. The physician will provide a detailed interpretation of the findings in the written report, which will guide further management or treatment decisions based on the results of the imaging and uptake studies.
| Short Descr | THYROID IMAGING W/BLOOD FLOW | Medium Descr | THYROID UPTAKE W/BLOOD FLOW SNGLE/MULT QUAN MEAS | Long Descr | Thyroid imaging (including vascular flow, when performed); with single or multiple uptake(s) quantitative measurement(s) (including stimulation, suppression, or discharge, when performed) | 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 | Procedure or Service, Not Discounted when Multiple | 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) | I1E - Standard imaging - nuclear medicine | MUE | 1 | CCS Clinical Classification | 209 - Radioisotope scan and function studies |
| 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 | GC | This service has been performed in part by a resident under the direction of a teaching physician | 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 | 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 | 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 | 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. | 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 | AQ | Physician providing a service in an unlisted health professional shortage area (hpsa) | CR | Catastrophe/disaster related | 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 | 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). | 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. | FY | X-ray taken using computed radiography technology/cassette-based imaging | GA | Waiver of liability statement issued as required by payer policy, individual case | 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 | GZ | Item or service expected to be denied as not reasonable and necessary | 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 | MB | Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of insufficient internet access | 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 | MD | Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of extreme and uncontrollable circumstances | Q1 | Routine clinical service provided in a clinical research study that is in an approved clinical research study | 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 | 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) | XE | Separate encounter, a service that is distinct because it occurred during a separate encounter | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service |
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