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Official Description

Application of a modality to 1 or more areas; ultrasound, each 15 minutes

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Ultrasound therapy, as described by CPT® Code 97035, involves the application of high-frequency sound waves to one or more areas of the body. This therapeutic modality is designed to produce heat and/or vibration, which can enhance circulation, reduce inflammation, and improve the flexibility of connective tissues. During the procedure, a water-soluble gel is applied to the treatment site to facilitate the transmission of sound waves. A hand-held device, specifically designed for ultrasound therapy, is utilized to deliver these sound waves effectively. The practitioner moves the device over the targeted area in a circular motion to ensure even coverage and optimal therapeutic effect. This modality is particularly beneficial for treating acute soft tissue injuries, making it a valuable tool in physical therapy. It is important to note that ultrasound therapy is classified as a time-based service, requiring constant attendance and direct, one-on-one contact with the patient. The service is reported in increments of 15 minutes, reflecting the duration of the treatment provided.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

Ultrasound therapy is indicated for various conditions and symptoms that benefit from enhanced circulation, reduced inflammation, and improved flexibility of connective tissues. The following are specific indications for the application of ultrasound therapy:

  • Acute Soft Tissue Injuries - Ultrasound is commonly used to treat recent injuries to muscles, tendons, and ligaments, helping to alleviate pain and promote healing.
  • Inflammation - Conditions characterized by inflammation, such as tendonitis or bursitis, may be treated effectively with ultrasound to reduce swelling and discomfort.
  • Scar Tissue Management - Ultrasound can assist in breaking down scar tissue and improving the flexibility of affected areas, facilitating better movement and function.
  • Muscle Spasms - The application of ultrasound may help relieve muscle spasms by promoting relaxation and increasing blood flow to the affected muscles.

2. Procedure

The procedure for ultrasound therapy involves several key steps that ensure effective treatment. Each step is crucial for achieving the desired therapeutic outcomes.

  • Preparation of the Treatment Area - The first step involves preparing the treatment area by cleaning the skin to remove any oils or debris. This ensures optimal contact between the skin and the ultrasound device.
  • Application of Gel - A water-soluble gel is then applied to the area being treated. This gel serves as a medium to facilitate the transmission of sound waves from the ultrasound device to the skin, enhancing the effectiveness of the treatment.
  • Ultrasound Delivery - The practitioner uses a hand-held ultrasound device to deliver sound waves to the treatment area. The device is moved in a circular motion over the site, ensuring even distribution of the ultrasound waves. The duration of this application is typically measured in 15-minute increments.
  • Monitoring Patient Response - Throughout the procedure, the practitioner monitors the patient's response to the treatment, adjusting the intensity and duration as necessary to ensure comfort and effectiveness.

3. Post-Procedure

After the ultrasound therapy session, patients may be advised on post-procedure care to maximize the benefits of the treatment. This may include recommendations for rest, hydration, and gentle stretching of the treated area to maintain flexibility. Patients should also be informed about potential mild soreness following the procedure, which is typically temporary. Follow-up appointments may be scheduled to assess progress and determine if additional ultrasound therapy sessions are needed for optimal recovery.

Short Descr APP MDLTY 1+ULTRASOUND EA 15
Medium Descr APPL MODALITY 1+ AREAS ULTRASOUND EA 15 MIN
Long Descr Application of a modality to 1 or more areas; ultrasound, each 15 minutes
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 7 - Physical Therapy Service, for which Payment may not be Made
Multiple Procedures (51) 5 - Special payment adjustment rules on the RVU practice expense component of multiple therapy service applies...
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 Service Paid under Fee Schedule or Payment System other than OPPS
Type of Service (TOS) 1 - Medical Care
Berenson-Eggers TOS (BETOS) P6C - Minor procedures - other (Medicare fee schedule)
MUE 2
CCS Clinical Classification 213 - Physical therapy exercises, manipulation, and other procedures
GP Services delivered under an outpatient physical therapy plan of care
CQ Outpatient physical therapy services furnished in whole or in part by a physical therapist assistant
KX Requirements specified in the medical policy have been met
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
GO Services delivered under an outpatient occupational therapy plan of care
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.
GA Waiver of liability statement issued as required by payer policy, individual case
CO Outpatient occupational therapy services furnished in whole or in part by an occupational therapy assistant
97 Rehabilitative services: when a service or procedure that may be either habilitative or rehabilitative in nature is provided for rehabilitative purposes, the physician or other qualified health care professional may add modifier 97 to the service or procedure code to indicate that the service or procedure provided was a rehabilitative service. rehabilitative services help an individual keep, get back, or improve skills and functioning for daily living that have been lost or impaired because the individual was sick, hurt, or disabled.
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)
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).
GX Notice of liability issued, voluntary under payer policy
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
UB Medicaid level of care 11, as defined by each state
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
U5 Medicaid level of care 5, as defined by each state
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).
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.
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.
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.)
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.
96 Habilitative services: when a service or procedure that may be either habilitative or rehabilitative in nature is provided for habilitative purposes, the physician or other qualified health care professional may add modifier 96 to the service or procedure code to indicate that the service or procedure provided was a habilitative service. habilitative services help an individual learn skills and functioning for daily living that the individual has not yet developed, and then keep and/or improve those learned skills. habilitative services also help an individual keep, learn, or improve skills and functioning for daily living.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AT Acute treatment (this modifier should be used when reporting service 98940, 98941, 98942)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CG Policy criteria applied
CR Catastrophe/disaster related
F2 Left hand, third digit
F4 Left hand, fifth digit
F7 Right hand, third digit
FA Left hand, thumb
FP Service provided as part of family planning program
G1 Most recent urr reading of less than 60
GB Claim being re-submitted for payment because it is no longer covered under a global payment demonstration
GC This service has been performed in part by a resident under the direction of a teaching physician
GN Services delivered under an outpatient speech language pathology plan of care
GQ Via asynchronous telecommunications system
GT Via interactive audio and video telecommunication systems
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
GZ Item or service expected to be denied as not reasonable and necessary
HM Less than bachelor degree level
J5 Off-the-shelf orthotic subject to dmepos competitive bidding program that is furnished as part of a physical therapist or occupational therapist professional service
K0 Lower extremity prosthesis functional level 0 - does not have the ability or potential to ambulate or transfer safely with or without assistance and a prosthesis does not enhance their quality of life or mobility.
KC Replacement of special power wheelchair interface
KK Dmepos item subject to dmepos competitive bidding program number 2
KN Replacement of facial prosthesis using previous master model
KP First drug of a multiple drug unit dose formulation
KW Dmepos item subject to dmepos competitive bidding program number 4
KY Dmepos item subject to dmepos competitive bidding program number 5
PA Surgical or other invasive procedure on wrong body part
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
Q8 Two class b findings
QC Single channel monitoring
SA Nurse practitioner rendering service in collaboration with a physician
SU Procedure performed in physician's office (to denote use of facility and equipment)
T5 Right foot, great toe
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
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
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
Date
Action
Notes
2024-01-01 Changed Short and Medium Descriptions changed.
2010-01-01 Changed Code description changed.
1995-01-01 Added First appearance in code book in 1995.
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