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Continuous ambulatory glucose monitoring (CAGM) is a procedure that involves the use of a subcutaneous sensor to measure glucose levels in interstitial tissue fluid over an extended period, specifically for a minimum duration of 72 hours. This method provides a comprehensive view of glucose trends throughout the day, offering insights that are not available through traditional self-monitoring techniques, which typically rely on isolated blood glucose measurements. The procedure begins with the placement of a temporary sensor beneath the skin, which is secured with a small plastic disc to ensure stability. This sensor is connected to a monitor that records glucose levels at regular intervals, typically every five minutes. The continuous data collection allows for real-time monitoring of glucose fluctuations, which can be particularly beneficial for patients managing diabetes. After the monitoring period, the sensor is removed, and the recorded data is downloaded for analysis by a physician or qualified healthcare professional. This process not only aids in understanding the patient's glucose patterns but also assists in making informed decisions regarding insulin therapy and other diabetes management strategies. The comprehensive nature of this monitoring technique underscores its importance in providing a detailed assessment of a patient's glycemic control.
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The ambulatory continuous glucose monitoring procedure is indicated for patients who require detailed monitoring of their glucose levels to manage diabetes effectively. This includes individuals who may experience:
The procedure for ambulatory continuous glucose monitoring involves several key steps to ensure accurate and effective monitoring of glucose levels:
After the completion of the ambulatory continuous glucose monitoring procedure, patients may experience a brief recovery period as the site of sensor placement heals. It is important for patients to follow any post-procedure care instructions provided by their healthcare professional, which may include keeping the area clean and monitoring for any signs of infection. The physician will review the downloaded data to assess the patient's glucose control and may schedule a follow-up appointment to discuss the findings and adjust the treatment plan as necessary. This follow-up is crucial for ensuring that the patient receives appropriate care based on the insights gained from the continuous monitoring data.
| Short Descr | CONT GLUC MNTR PHYS/QHP EQP | Medium Descr | CONT GLUC MNTR PHYSICIAN/QHP PROVIDED EQUIPMENT | Long Descr | Ambulatory continuous glucose monitoring of interstitial tissue fluid via a subcutaneous sensor for a minimum of 72 hours; physician or other qualified health care professional (office) provided equipment, sensor placement, hook-up, calibration of monitor, patient training, removal of sensor, and printout of recording | Status Code | Active Code | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 3 - Technical Component Only Code | 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 | Clinic or Emergency Department Visit | Type of Service (TOS) | 1 - Medical Care | Berenson-Eggers TOS (BETOS) | T1E - Lab tests - glucose | MUE | 1 | CCS Clinical Classification | 11 - Diagnostic endocrine procedures |
| 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. | 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. | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main 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 | GA | Waiver of liability statement issued as required by payer policy, individual case | 27 | Multiple outpatient hospital e/m encounters on the same date: for hospital outpatient reporting purposes, utilization of hospital resources related to separate and distinct e/m encounters performed in multiple outpatient hospital settings on the same date may be reported by adding modifier 27 to each appropriate level outpatient and/or emergency department e/m code(s). this modifier provides a means of reporting circumstances involving evaluation and management services provided by physician(s) in more than one (multiple) outpatient hospital setting(s) (eg, hospital emergency department, clinic). note: this modifier is not to be used for physician reporting of multiple e/m services performed by the same physician on the same date. for physician reporting of all outpatient evaluation and management services provided by the same physician on the same date and performed in multiple outpatient setting(s) (eg, hospital emergency department, clinic), see evaluation and management, emergency department, or preventive medicine services codes. | 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). | 93 | Synchronous telemedicine service rendered via telephone or other real-time interactive audio-only 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 away 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 is sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. | 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. | CG | Policy criteria applied | CR | Catastrophe/disaster related | FQ | The service was furnished using audio-only communication technology | GC | This service has been performed in part by a resident under the direction of a teaching physician | 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 | 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 | KX | Requirements specified in the medical policy have been met | RT | Right side (used to identify procedures performed on the right side of the body) | SA | Nurse practitioner rendering service in collaboration with a physician | SW | Services provided by a certified diabetic educator | 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 | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure |
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| 2018-01-01 | Changed | Long medium and short descriptions changed. |
| 2011-01-01 | Changed | Short description changed. |
| 2009-01-01 | Changed | Code description changed |
| 2006-01-01 | Changed | Code description changed. |
| 2002-01-01 | Added | First appearance in code book in 2002. |
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