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Official Description

Negative pressure wound therapy (eg, vacuum assisted drainage collection), utilizing durable medical equipment (DME), including topical application(s), wound assessment, and instruction(s) for ongoing care, per session; total wound(s) surface area greater than 50 square centimeters

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Negative pressure wound therapy (NPWT) is a specialized treatment method designed to facilitate the healing of both acute and chronic wounds, as well as to enhance the recovery of first- and second-degree burns. This therapy involves the controlled application of sub-atmospheric pressure, which can be administered either intermittently or continuously, to a localized area of the wound. The wound is first sealed with a bio-occlusive dressing that is connected to a vacuum pump, creating a sealed environment that promotes a moist healing environment while simultaneously protecting the wound from external contaminants. The application of negative pressure serves multiple purposes: it helps to remove excess fluid from the wound area, reduces edema, and increases blood circulation to the site, all of which are critical factors in the healing process. The dressing used in NPWT typically consists of a cell foam or gauze filler material that is specifically shaped to fit the contours of the wound. This filler is then covered with a transparent bio-occlusive film that maintains the integrity of the sealed environment. A drainage tube is inserted into the wound through a small slit in the film, allowing for the connection to the vacuum pump. The dressing is generally changed two to three times per week, during which the old dressing material and drainage tubing are disposed of in biohazard bags to ensure safety and compliance with health regulations. Each dressing change includes a thorough assessment of the wound for signs of healing and infection, and may involve irrigation and cleaning of the wound, as well as the application of topical medications. After the wound is redressed, the patient or caregiver receives detailed instructions for ongoing care to ensure proper management of the wound and to promote optimal healing outcomes. It is important to note that CPT® Code 97606 is specifically utilized when the total surface area of the wound(s) exceeds 50 square centimeters, distinguishing it from CPT® Code 97605, which is applicable for wounds measuring 50 square centimeters or less.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Negative pressure wound therapy (NPWT) is indicated for a variety of conditions that necessitate enhanced wound healing. The following are the explicitly provided indications for the use of CPT® Code 97606:

  • Acute Wounds - NPWT is utilized to promote healing in acute wounds, which may include surgical wounds or traumatic injuries that require advanced care to facilitate recovery.
  • Chronic Wounds - This therapy is also indicated for chronic wounds that have not responded to standard treatment methods, helping to stimulate healing processes that may be stalled.
  • First-Degree Burns - NPWT can enhance the healing of first-degree burns, which affect only the outer layer of skin and typically present with redness and minor swelling.
  • Second-Degree Burns - The therapy is also effective for second-degree burns, which penetrate deeper into the skin and may cause blisters and significant pain.

2. Procedure

The procedure for administering negative pressure wound therapy (NPWT) involves several critical steps to ensure effective treatment. The following procedural steps are outlined for clarity:

  • Step 1: Wound Preparation - The initial step involves preparing the wound site by cleaning and assessing the wound for any signs of infection or complications. This may include irrigation and debridement if necessary to ensure that the wound bed is clean and ready for the application of the NPWT dressing.
  • Step 2: Dressing Application - Once the wound is prepared, a cell foam or gauze filler material is selected and shaped to fit the contours of the wound. This filler is then placed into the wound, ensuring that it adequately fills the space and promotes contact with the wound bed.
  • Step 3: Sealing the Dressing - After the filler material is in place, a transparent bio-occlusive film is applied over the wound. This film is crucial as it creates a sealed environment that allows for the application of negative pressure while protecting the wound from external contaminants.
  • Step 4: Connecting the Vacuum Pump - A drainage tube is inserted through a small slit in the bio-occlusive film and connected to a vacuum pump. This connection is essential for creating the negative pressure environment that facilitates healing.
  • Step 5: Monitoring and Maintenance - The dressing is typically changed two to three times per week. During each change, the old dressing and drainage tubing are disposed of in biohazard bags. The wound is reassessed for healing progress and any signs of infection, and topical medications may be applied as needed before redressing the wound.
  • Step 6: Patient Education - After the dressing is reapplied, the patient or caregiver is provided with detailed instructions for ongoing care. This education is vital to ensure that the wound is managed properly between therapy sessions, promoting optimal healing outcomes.

3. Post-Procedure

Post-procedure care following negative pressure wound therapy is essential for ensuring continued healing and preventing complications. After the application of NPWT, patients are expected to follow specific care instructions provided by their healthcare provider. This includes monitoring the wound for any signs of infection, such as increased redness, swelling, or discharge. Patients should also be aware of the importance of keeping the dressing intact and dry, as moisture can compromise the effectiveness of the therapy. Regular follow-up appointments are necessary to assess the wound's healing progress and to make any adjustments to the treatment plan as needed. Additionally, patients should be instructed on how to properly dispose of used dressings and drainage materials to maintain hygiene and safety. Overall, adherence to post-procedure care guidelines is crucial for achieving the best possible outcomes in wound healing.

Short Descr NEG PRS WND THER DME>50 SQCM
Medium Descr NEGATIVE PRESSURE WOUND THERAPY DME >50 SQ CM
Long Descr Negative pressure wound therapy (eg, vacuum assisted drainage collection), utilizing durable medical equipment (DME), including topical application(s), wound assessment, and instruction(s) for ongoing care, per session; total wound(s) surface area greater than 50 square centimeters
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 0 - Physician Service 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 STV-Packaged Codes
Type of Service (TOS) 1 - Medical Care
Berenson-Eggers TOS (BETOS) P6C - Minor procedures - other (Medicare fee schedule)
MUE 1
CCS Clinical Classification 214 - Traction, splints, and other wound 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.
GC This service has been performed in part by a resident under the direction of a teaching physician
KX Requirements specified in the medical policy have been met
GP Services delivered under an outpatient physical therapy plan of care
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.
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
LT Left side (used to identify procedures performed on the left side of the body)
GN Services delivered under an outpatient speech language pathology plan of care
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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.)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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.
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).
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
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.
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)
CQ Outpatient physical therapy services furnished in whole or in part by a physical therapist assistant
CR Catastrophe/disaster related
ET Emergency services
FS Split (or shared) evaluation and management visit
GA Waiver of liability statement issued as required by payer policy, individual case
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
GO Services delivered under an outpatient occupational therapy plan of care
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
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
QJ Services/items provided to a prisoner or patient in state or local custody, however the state or local government, as applicable, meets the requirements in 42 cfr 411.4 (b)
RT Right side (used to identify procedures performed on the right side of the body)
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
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
Date
Action
Notes
2024-01-01 Changed Short Description changed.
2015-01-01 Changed Description Changed
2013-01-01 Changed Description Changed
2011-01-01 Changed Short description changed.
2005-01-01 Added First appearance in code book in 2005.
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