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A radiologic examination of the knee, designated by CPT® Code 73564, involves a comprehensive imaging process that captures detailed views of the knee joint and surrounding structures. This examination typically includes four or more X-ray images, which provide a thorough assessment of the femur, tibia, fibula, patella, and associated soft tissues. The X-ray imaging technique utilizes indirect ionizing radiation to create images of the internal anatomy. The principle behind X-ray imaging is based on the varying densities and compositions of human tissues; as X-rays pass through the body, some rays are absorbed by denser materials, while others are transmitted through, resulting in a two-dimensional representation of the anatomical structures on a detector. The primary purpose of conducting a complete knee X-ray examination is to investigate the underlying causes of symptoms such as pain, limping, or swelling. Additionally, this imaging modality is instrumental in diagnosing various conditions, including fractures, dislocations, deformities, degenerative diseases, osteomyelitis, arthritis, foreign bodies, and the presence of cysts or tumors. Furthermore, knee X-rays are essential in evaluating the alignment of lower extremity bones post-fracture treatment, ensuring that healing is progressing appropriately. Standard views captured during this examination include the anteroposterior (AP) view, which is taken from front to back, the lateral view, which provides a side perspective, and the posteroanterior (PA) view, taken from back to front. Variations in joint flexion and the patient's weight-bearing status may also be incorporated into the imaging protocol to enhance diagnostic accuracy. For less comprehensive examinations, CPT® Code 73560 is applicable for X-ray exams of the knee in one or two views, while CPT® Code 73562 is designated for three views. In contrast, CPT® Code 73564 specifically denotes a complete X-ray examination of the knee with four or more views, providing a more extensive evaluation of the knee joint and its surrounding structures.
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The complete radiologic examination of the knee, as represented by CPT® Code 73564, is indicated for a variety of clinical scenarios. The following conditions and symptoms may warrant this comprehensive imaging procedure:
The procedure for a complete radiologic examination of the knee involves several key steps to ensure comprehensive imaging. The following procedural steps outline the process:
After the completion of the radiologic examination of the knee, the patient may be provided with specific post-procedure instructions, although no invasive interventions are typically required. The patient is usually informed that they can resume normal activities unless otherwise directed by their physician. The radiographs will be interpreted by a qualified radiologist, who will provide a detailed report outlining any findings. This report is then communicated to the referring physician, who will discuss the results with the patient and determine any necessary follow-up actions or treatments based on the findings of the examination. It is important for the patient to follow up with their healthcare provider to address any concerns or further management based on the results of the knee X-ray examination.
| Short Descr | X-RAY EXAM KNEE 4 OR MORE | Medium Descr | RADIOLOGIC EXAM KNEE COMPLETE 4/MORE VIEWS | Long Descr | Radiologic examination, knee; complete, 4 or more views | 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) | 3 - The usual 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 | STV-Packaged Codes | ASC Payment Indicator | Packaged service/item; no separate payment made. | Type of Service (TOS) | 4 - Diagnostic Radiology | Berenson-Eggers TOS (BETOS) | I1B - Standard imaging - musculoskeletal | MUE | 4 | CCS Clinical Classification | 226 - Other diagnostic radiology and related techniques |
| LT | Left side (used to identify procedures performed on the left side of the body) | RT | Right side (used to identify procedures performed on the right side of the body) | 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. | 50 | Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d). | 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 | 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 | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure | 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. | 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 | AQ | Physician providing a service in an unlisted health professional shortage area (hpsa) | 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 | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service | 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. | CC | Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed) | FX | X-ray taken using film | CR | Catastrophe/disaster related | GW | Service not related to the hospice patient's terminal condition | 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. | 25 | Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure or other service: it may be necessary to indicate that on the day a procedure or service identified by a cpt code was performed, the patient's condition required a significant, separately identifiable e/m service above and beyond the other service provided or beyond the usual preoperative and postoperative care associated with the procedure that was performed. a significant, separately identifiable e/m service is defined or substantiated by documentation that satisfies the relevant criteria for the respective e/m service to be reported (see evaluation and management services guidelines for instructions on determining level of e/m service). the e/m service may be prompted by the symptom or condition for which the procedure and/or service was provided. as such, different diagnoses are not required for reporting of the e/m services on the same date. this circumstance may be reported by adding modifier 25 to the appropriate level of e/m service. note: this modifier is not used to report an e/m service that resulted in a decision to perform surgery. see modifier 57 for significant, separately identifiable non-e/m services, see modifier 59. | 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). | 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.) | AF | Specialty physician | AG | Primary physician | AK | Non participating physician | AM | Physician, team member 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 | ER | Items and services furnished by a provider-based, off-campus emergency department | ET | Emergency services | F8 | Right hand, fourth digit | FS | Split (or shared) evaluation and management visit | FT | Unrelated evaluation and management (e/m) visit on the same day as another e/m visit or during a global procedure (preoperative, postoperative period, or on the same day as the procedure, as applicable). (report when an e/m visit is furnished within the global period but is unrelated, or when one or more additional e/m visits furnished on the same day are unrelated) | GA | Waiver of liability statement issued as required by payer policy, individual case | GB | Claim being re-submitted for payment because it is no longer covered under a global payment demonstration | GP | Services delivered under an outpatient physical therapy plan of care | GV | Attending physician not employed or paid under arrangement by the patient's hospice provider | 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 | GZ | Item or service expected to be denied as not reasonable and necessary | JZ | Zero drug amount discarded/not administered to any patient | KT | Beneficiary resides in a competitive bidding area and travels outside that competitive bidding area and receives a competitive bid item | KV | Dmepos item subject to dmepos competitive bidding program that is furnished as part of a professional service | KX | Requirements specified in the medical policy have been met | 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 | 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 | NB | Nebulizer system, any type, fda-cleared for use with specific drug | 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 | PN | Non-excepted service provided at an off-campus, outpatient, provider-based department of a hospital | PO | Excepted service provided at an off-campus, outpatient, provider-based department of a hospital | Q1 | Routine clinical service provided in a clinical research study that is in an approved clinical research study | Q5 | Service furnished under a reciprocal billing 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) | SA | Nurse practitioner rendering service in collaboration with a physician | ST | Related to trauma or injury | T3 | Left foot, fourth digit | TA | Left foot, great toe | TL | Early intervention/individualized family service plan (ifsp) | TT | Individualized service provided to more than one patient in same setting | UD | Medicaid level of care 13, as defined by each state | X2 | Continuous/focused services: for reporting services by clinicians whose expertise is needed for the ongoing management of a chronic disease or a condition that needs to be managed and followed with no planned endpoint to the relationship; reporting clinician service examples include but are not limited to: a rheumatologist taking care of the patient's rheumatoid arthritis longitudinally but not providing general primary care services | XE | Separate encounter, a service that is distinct because it occurred during a separate encounter | XP | Separate practitioner, a service that is distinct because it was performed by a different practitioner |
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| 2011-01-01 | Changed | Short description changed. |
| 2009-01-01 | Changed | Code description changed |
| Pre-1990 | Added | Code added. |
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