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Official Description

Injection(s); single or multiple trigger point(s), 1 or 2 muscle(s)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 20552 involves the injection of one or more trigger points located within one or two muscles. Trigger points are defined as small, tight knots that form in muscle tissue, often as a result of injury, overuse, or strain. These points can lead to pain and discomfort, and they may restrict movement in the affected area. During the procedure, a physician will first identify these trigger points through palpation, which is the process of feeling the muscle to locate areas of tenderness or tightness. Once the trigger points are identified, a needle is carefully inserted into the muscle, and an injection is administered. The injected substance may include an anesthetic, a steroid, or another therapeutic agent aimed at alleviating pain and reducing inflammation. The physician may repeat this injection process for each identified trigger point within the involved muscles, ensuring comprehensive treatment of the affected areas. This procedure is commonly utilized in the management of myofascial pain syndromes and is an important intervention for patients experiencing muscle-related pain and dysfunction.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The injection of trigger points is indicated for various conditions that involve muscle pain and dysfunction. The following are explicitly provided indications for the procedure:

  • Myofascial Pain Syndrome - A condition characterized by the presence of trigger points in muscles, leading to localized pain and discomfort.
  • Muscle Strain - Injuries resulting from overstretching or overexertion of muscles, which can lead to the formation of trigger points.
  • Chronic Pain Conditions - Ongoing pain that may be associated with underlying muscle issues, where trigger points contribute to the overall pain experience.

2. Procedure

The procedure for injecting trigger points involves several key steps that ensure effective treatment of the identified muscle areas. The following procedural steps are outlined:

  • Step 1: Identification of Trigger Points - The physician begins by palpating the muscle to locate the specific areas of tenderness or tightness, which are indicative of trigger points. This step is crucial as it allows the physician to target the injections accurately.
  • Step 2: Preparation for Injection - Once the trigger points are identified, the physician prepares the injection site. This may involve cleaning the skin with an antiseptic solution to minimize the risk of infection and ensuring that all necessary equipment is sterile and ready for use.
  • Step 3: Injection of Therapeutic Substance - The physician then advances a needle into the muscle at the site of the trigger point. An anesthetic, steroid, or other therapeutic substance is injected into the muscle. The injection may be repeated for each identified trigger point within the involved muscles to ensure comprehensive treatment.
  • Step 4: Post-Injection Assessment - After the injections are completed, the physician may assess the patient's response to the treatment, checking for immediate relief of symptoms and any potential side effects.

3. Post-Procedure

Following the injection procedure, patients may experience some soreness at the injection sites, which is typically temporary. It is important for patients to follow any post-procedure care instructions provided by the physician, which may include rest, ice application, or over-the-counter pain relief as needed. Patients are often advised to monitor their symptoms and report any unusual reactions or prolonged discomfort. The expected recovery time can vary depending on the individual and the extent of the treatment, but many patients may notice improvement in their symptoms shortly after the procedure.

Short Descr INJ TRIGGER POINT 1/2 MUSCL
Medium Descr INJECTION SINGLE/MLT TRIGGER POINT 1/2 MUSCLES
Long Descr Injection(s); single or multiple trigger point(s), 1 or 2 muscle(s)
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) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
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 Office-based surgical procedure added to ASC list in CY 2008 or later with MPFS nonfacility PE RVUs; payment based on MPFS nonfacility PE RVUs.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P6B - Minor procedures - musculoskeletal
MUE 1
CCS Clinical Classification 156 - Injections and aspirations of muscles, tendons, bursa, joints and soft tissue

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.
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).
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)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
GZ Item or service expected to be denied as not reasonable and necessary
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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.)
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
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.
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
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
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
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
GP Services delivered under an outpatient physical therapy plan of care
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
CR Catastrophe/disaster related
F7 Right hand, third digit
SG Ambulatory surgical center (asc) facility service
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.
F5 Right hand, thumb
GX Notice of liability issued, voluntary under payer policy
KX Requirements specified in the medical policy have been met
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
F2 Left hand, third digit
F8 Right hand, fourth digit
FA Left hand, thumb
SA Nurse practitioner rendering service in collaboration with a physician
X1 Continuous/broad services: for reporting services by clinicians, who provide the principal care for a patient, with no planned endpoint of the relationship; services in this category represent comprehensive care, dealing with the entire scope of patient problems, either directly or in a care coordination role; reporting clinician service examples include, but are not limited to: primary care, and clinicians providing comprehensive care to patients in addition to specialty care
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.
24 Unrelated evaluation and management service by the same physician or other qualified health care professional during a postoperative period: the physician or other qualified health care professional may need to indicate that an evaluation and management service was performed during a postoperative period for a reason(s) unrelated to the original procedure. this circumstance may be reported by adding modifier 24 to the appropriate level of 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.
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).
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).
56 Preoperative management only: when 1 physician or other qualified health care professional performed the preoperative care and evaluation and another performed the surgical procedure, the preoperative component may be identified by adding modifier 56 to the usual procedure number.
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.)
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.
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
CG Policy criteria applied
E1 Upper left, eyelid
ER Items and services furnished by a provider-based, off-campus emergency department
F1 Left hand, second digit
F3 Left hand, fourth digit
F4 Left hand, fifth digit
F6 Right hand, second digit
F9 Right hand, fifth digit
FS Split (or shared) evaluation and management visit
GF Non-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns), physician assistant (pa)) services in a critical access hospital
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
JZ Zero drug amount discarded/not administered to any patient
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
PC Wrong surgery or other invasive procedure on patient
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
QS Monitored anesthesia care service
QX Crna service: with medical direction by a physician
QY Medical direction of one certified registered nurse anesthetist (crna) by an anesthesiologist
SC Medically necessary service or supply
SU Procedure performed in physician's office (to denote use of facility and equipment)
T1 Left foot, second digit
T2 Left foot, third digit
T5 Right foot, great toe
T9 Right foot, fifth digit
TA Left foot, great toe
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
U6 Medicaid level of care 6, as defined by each state
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
Date
Action
Notes
2011-01-01 Changed Short description changed.
2009-01-01 Changed Code description changed
2003-01-01 Changed Code description changed.
2002-01-01 Added First appearance in code book in 2002.
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