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Official Description

Injection(s), anesthetic agent(s) and/or steroid; femoral nerve, continuous infusion by catheter (including catheter placement), including imaging guidance, when performed

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 64448 refers to the procedure of injecting anesthetic agents and/or steroids into the femoral nerve through a continuous infusion method via a catheter. This procedure is specifically designed to provide pain relief by blocking the femoral nerve, which is located in the groin area and is responsible for sensation and movement in the thigh. The process begins with the preparation of the patient's skin, where a local anesthetic is applied to minimize discomfort during the procedure. The injection site is carefully marked to ensure accuracy. A specialized needle is then inserted through the skin into the femoral nerve sheath, which is the protective covering surrounding the nerve. The correct placement of the needle is confirmed using techniques such as electrical nerve stimulation or imaging guidance, which may include ultrasound. Once the needle is properly positioned, aspiration is performed to check for blood return, indicating that the needle is not in a blood vessel. Following this, a catheter is advanced into the femoral nerve sheath, allowing for the administration of a long-acting local anesthetic, such as bupivacaine, often combined with epinephrine to prolong the effect. Continuous infusion of the anesthetic is initiated to maintain pain relief over an extended period. This procedure is particularly beneficial for patients requiring prolonged analgesia, such as those undergoing surgery on the lower extremities or those with chronic pain conditions affecting the thigh region.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 64448 is indicated for various conditions that require effective pain management through femoral nerve blockade. The following are the explicitly provided indications for this procedure:

  • Postoperative Pain Management This procedure is often performed to manage pain following surgeries involving the lower extremities, such as knee or hip surgeries.
  • Chronic Pain Conditions It may be indicated for patients suffering from chronic pain syndromes affecting the thigh or hip region, providing relief from persistent discomfort.
  • Trauma The procedure can be utilized in cases of trauma to the lower limb, where pain control is essential for recovery.

2. Procedure

The procedure for CPT® Code 64448 involves several critical steps to ensure effective and safe administration of the anesthetic agent. The following procedural steps are outlined:

  • Step 1: Preparation The patient's groin area is cleansed and prepared with a local anesthetic to minimize discomfort during the procedure. This step is crucial for ensuring patient comfort and reducing the risk of infection.
  • Step 2: Marking the Injection Site The planned injection site is marked accurately to guide the placement of the needle. This ensures that the anesthetic is delivered precisely where it is needed.
  • Step 3: Needle Insertion A needle, either for single use or an insulated needle within a long cannula, is inserted through the anesthetized skin near the femoral artery and inguinal ligament into the femoral nerve sheath. This step requires careful technique to avoid injury to surrounding structures.
  • Step 4: Verification of Placement Proper placement of the needle is confirmed using electrical nerve stimulation or by observing the onset of numbness, tingling, or prickling sensations. Imaging guidance, such as ultrasound, may also be employed to ensure accurate needle placement.
  • Step 5: Aspiration Aspiration is performed to check for blood return, ensuring that the needle is not in a blood vessel before the anesthetic is introduced. This step is vital for patient safety.
  • Step 6: Catheter Advancement In this step, the cannula is advanced over the needle into the femoral nerve sheath. This allows for the continuous infusion of anesthetic agents.
  • Step 7: Injection of Anesthetic A long-acting local anesthetic, such as bupivacaine with epinephrine, is carefully injected through the cannula. The injection is monitored for effectiveness in achieving nerve block function.
  • Step 8: Continuous Infusion Setup After confirming the effectiveness of the nerve block, an epidural catheter is threaded through the cannula and secured in position. The cannula is then removed, and continuous infusion of the anesthetic is initiated to maintain pain relief.

3. Post-Procedure

Post-procedure care for CPT® Code 64448 involves monitoring the patient for any immediate complications and assessing the effectiveness of the nerve block. Patients are typically observed for signs of adequate pain relief and any potential adverse reactions to the anesthetic agents used. It is essential to provide instructions regarding the care of the catheter site to prevent infection and ensure proper function. Patients may also be advised on activity restrictions and follow-up appointments to evaluate the ongoing effectiveness of the pain management strategy. Continuous infusion may be adjusted based on the patient's pain levels and response to treatment.

Short Descr NJX AA&/STRD FEM NRV NFS IMG
Medium Descr INJECTION AA&/STRD FEM NRV CONT NFS CATH IMG GDN
Long Descr Injection(s), anesthetic agent(s) and/or steroid; femoral nerve, continuous infusion by catheter (including catheter placement), including imaging guidance, when performed
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 Device-intensive procedure added to ASC list in CY 2008 or later; paid at adjusted rate.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P6C - Minor procedures - other (Medicare fee schedule)
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.

77002 CPT Add On MPFS Status: Active Code APC N ASC N1 Physician Quality Reporting CPT Assistant Article Fluoroscopic guidance for needle placement (eg, biopsy, aspiration, injection, localization device) (List separately in addition to code for primary procedure)
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.
RT Right side (used to identify procedures performed on the right side of the body)
LT Left side (used to identify procedures performed on the left side of the body)
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
GC This service has been performed in part by a resident under the direction of a teaching physician
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).
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
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
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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).
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.
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.
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.
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.)
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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
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
KX Requirements specified in the medical policy have been met
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
SG Ambulatory surgical center (asc) facility service
U5 Medicaid level of care 5, 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
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Action
Notes
2023-01-01 Changed Code description changed.
2020-01-01 Changed Code description changed.
2011-01-01 Changed Short description changed.
2009-01-01 Changed Code description changed
2003-01-01 Added First appearance in code book in 2003.
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