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Official Description

Injection(s), anesthetic agent(s) and/or steroid; transforaminal epidural, with imaging guidance (fluoroscopy or CT), cervical or thoracic, single level

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A transforaminal epidural injection is a medical procedure designed to deliver anesthetic agents and/or steroids directly around a specific nerve root in the cervical or thoracic region of the spine. This procedure is particularly beneficial for patients experiencing pain or discomfort that may be radiating from nerve root irritation or inflammation. The foramina are small openings located between the vertebrae through which nerve roots exit the spinal canal. By utilizing imaging guidance, such as fluoroscopy or computed tomography (CT), the physician can accurately position the injection needle to ensure that the medication is delivered precisely where it is needed. The process begins with the cleansing and preparation of the skin over the targeted vertebra, followed by the careful advancement of the needle into the foramen. To confirm the correct placement of the needle, a small amount of radiopaque contrast material may be injected, enhancing the visibility of the needle's position on imaging. Once the needle is confirmed to be in the correct location, the anesthetic and/or steroid is injected around the nerve root, providing targeted relief from pain and inflammation. This procedure is coded as CPT® Code 64479 for a single level injection in the cervical or thoracic region, with additional levels being coded separately under CPT® Code 64480.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Transforaminal epidural injections are indicated for various conditions that involve nerve root irritation or inflammation. The following are specific indications for performing this procedure:

  • Radiculopathy - This condition occurs when a nerve root is compressed or irritated, leading to pain, numbness, or weakness that radiates along the path of the affected nerve.
  • Herniated Disc - A herniated disc can press on nearby nerve roots, causing significant pain and discomfort, which may be alleviated through targeted injection.
  • Spinal Stenosis - Narrowing of the spinal canal can lead to nerve compression, and a transforaminal epidural injection may help reduce inflammation and pain.
  • Degenerative Disc Disease - This condition can lead to chronic pain due to disc degeneration, and injections may provide symptomatic relief.

2. Procedure

The procedure for a transforaminal epidural injection involves several key steps to ensure accuracy and safety. The following outlines the procedural steps:

  • Step 1: Patient Preparation - The patient is positioned comfortably, and the skin over the targeted cervical or thoracic vertebra is cleansed with an antiseptic solution to minimize the risk of infection.
  • Step 2: Imaging Guidance - Fluoroscopy or CT imaging is utilized to visualize the anatomy and guide the needle placement accurately. This imaging is crucial for ensuring that the injection is delivered to the correct location.
  • Step 3: Needle Insertion - A thin needle is carefully advanced through the skin and into the foramen, the small opening where the nerve root exits the spinal canal. The physician monitors the needle's position using the imaging guidance.
  • Step 4: Contrast Injection - A small amount of radiopaque contrast material may be injected to confirm the proper placement of the needle. This step enhances the visibility of the needle on the imaging screen.
  • Step 5: Medication Injection - Once the needle is confirmed to be in the correct position, the anesthetic agent and/or steroid is injected around the nerve root to provide targeted relief from pain and inflammation.

3. Post-Procedure

After the transforaminal epidural injection, patients are typically monitored for a short period to assess for any immediate adverse reactions. It is common for patients to experience some relief from pain shortly after the injection, although the full effect may take several days to manifest. Patients are usually advised to avoid strenuous activities for a short period following the procedure to allow for optimal recovery. Additionally, they may be instructed to follow up with their healthcare provider to evaluate the effectiveness of the injection and discuss any further treatment options if necessary.

Short Descr NJX AA&/STRD TFRM EPI C/T 1
Medium Descr NJX AA&/STRD TFRML EPI CERVICAL/THORACIC 1 LEVEL
Long Descr Injection(s), anesthetic agent(s) and/or steroid; transforaminal epidural, with imaging guidance (fluoroscopy or CT), cervical or thoracic, single level
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory 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, Multiple Reduction Applies
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P6B - Minor procedures - musculoskeletal
MUE 1
CCS Clinical Classification 5 - Insertion of catheter or spinal stimulator and injection into spinal canal

This is a primary code that can be used with these additional add-on codes.

64480 Addon Code MPFS Status: Active Code APC N ASC N1 CPT Assistant Article Injection(s), anesthetic agent(s) and/or steroid; transforaminal epidural, with imaging guidance (fluoroscopy or CT), cervical or thoracic, each additional level (List separately in addition to code for primary procedure)
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)
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).
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).
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.
KX Requirements specified in the medical policy have been met
SG Ambulatory surgical center (asc) facility service
GA Waiver of liability statement issued as required by payer policy, individual case
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
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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
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).
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.
73 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure prior to the administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may cancel a surgical or diagnostic procedure subsequent to the patient's surgical preparation (including sedation when provided, and being taken to the room where the procedure is to be performed), but prior to the administration of anesthesia (local, regional block(s) or general). under these circumstances, the intended service that is prepared for but cancelled can be reported by its usual procedure number and the addition of modifier 73. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
74 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure after administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may terminate a surgical or diagnostic procedure after the administration of anesthesia (local, regional block(s), general) or after the procedure was started (incision made, intubation started, scope inserted, etc). under these circumstances, the procedure started but terminated can be reported by its usual procedure number and the addition of modifier 74. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
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.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
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.)
AG Primary physician
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)
CR Catastrophe/disaster related
F5 Right hand, thumb
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
GZ Item or service expected to be denied as not reasonable and necessary
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
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
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
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
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2021-01-01 Changed Code changed.
2021-01-01 Note AMA Guidelines removed.
2011-01-01 Changed Long description revised. Medium description changed. Guideline information changed.
2000-01-01 Added First appearance in code book in 2000.
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