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Official Description

Exploration of penetrating wound (separate procedure); chest

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 20101 refers to the exploration of a penetrating wound as a separate procedure, specifically targeting injuries to the chest area. A penetrating wound is typically the result of trauma, such as a gunshot or stab injury, which breaches the skin and underlying tissues. In this procedure, a scalpel is utilized to carefully extend the margins of the wound, allowing for a thorough examination of the underlying structures. This exploration is crucial for assessing the extent of the injury, as it enables the healthcare provider to visualize the subcutaneous tissue, fascia, and muscle layers beneath the skin. The depth of penetration is evaluated to determine the severity of the injury and to identify any potential damage to vital structures. During the procedure, the wound is irrigated with normal saline, which serves to enhance visibility and remove any debris that may obstruct the examination. Following irrigation, debridement is performed using both sharp and blunt dissection techniques to clean the wound and eliminate any foreign bodies that may be present. Control of bleeding is an essential aspect of this procedure; minor bleeding from blood vessels within the subcutaneous tissue, muscle fascia, or muscle is managed through ligation or coagulation methods. Once the exploration confirms that the penetrating injury does not involve deeper tissues, and that major blood vessels and nerves remain intact, the wound can be addressed appropriately. In cases involving chest or abdominal wounds, it is critical to ensure that the injury does not extend into the thoracic or abdominal cavity. Depending on the findings, the wound may be packed open or closed in layers to promote healing. For similar procedures involving penetrating wounds in other areas, such as the neck or extremities, different CPT codes are utilized, specifically 20100 for neck wounds and 20103 for extremity wounds.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The exploration of a penetrating wound (CPT® Code 20101) is indicated in cases where there is a suspected injury to the chest due to trauma. The following conditions warrant this procedure:

  • Gunshot Wound A penetrating injury resulting from a bullet entering the chest area.
  • Stab Wound An injury caused by a sharp object penetrating the chest.
  • Traumatic Injury Any other form of penetrating trauma that compromises the integrity of the chest wall.

2. Procedure

The procedure for exploring a penetrating wound in the chest involves several critical steps to ensure thorough evaluation and management of the injury:

  • Step 1: Wound Extension The procedure begins with the careful extension of the wound margins using a scalpel. This step is essential to provide adequate access to the underlying tissues for visualization and assessment.
  • Step 2: Examination of Underlying Tissues Once the wound is extended, the healthcare provider examines the underlying subcutaneous tissue, fascia, and muscle layers. This examination is crucial for determining the depth of penetration and assessing any potential damage to these structures.
  • Step 3: Wound Irrigation The wound is then irrigated with normal saline. This irrigation serves two purposes: it improves visibility of the wound site and helps to remove any debris that may be present, facilitating a clearer view of the injury.
  • Step 4: Debridement Following irrigation, debridement is performed using both sharp and blunt dissection techniques. This step is vital for cleaning the wound and removing any foreign bodies that could impede healing or lead to infection.
  • Step 5: Control of Bleeding During the exploration, any minor bleeding from blood vessels in the subcutaneous tissue, muscle fascia, or muscle is controlled through ligation or coagulation. This step is critical to prevent excessive blood loss and ensure patient stability.
  • Step 6: Assessment of Injury After thorough exploration, the provider assesses whether the penetrating injury involves deeper tissues. It is essential to confirm that major blood vessels and nerves are intact and that, in the case of chest wounds, the injury does not extend into the thoracic cavity.
  • Step 7: Wound Closure If the exploration confirms that there is no significant damage to deeper structures, the wound may be packed open or closed in layers, depending on the specific findings and clinical judgment.

3. Post-Procedure

Post-procedure care following the exploration of a penetrating wound involves monitoring the patient for any signs of complications, such as infection or excessive bleeding. The wound site should be assessed regularly to ensure proper healing. If the wound is packed open, it may require regular dressing changes to maintain cleanliness and prevent infection. The healthcare provider will also provide instructions regarding activity restrictions and signs of complications that the patient should watch for during recovery. Follow-up appointments may be necessary to evaluate the healing process and address any concerns that arise.

Short Descr EXPL PENTRG WOUND CHEST
Medium Descr EXPLORATION PENETRATING WOUND SPX CHEST
Long Descr Exploration of penetrating wound (separate procedure); chest
Status Code Active Code
Global Days 010 - 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
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P6B - Minor procedures - musculoskeletal
MUE 2
CCS Clinical Classification 175 - Other OR therapeutic procedures on skin and breast
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).
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.
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.
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
GC This service has been performed in part by a resident under the direction of a teaching physician
LT Left side (used to identify procedures performed on the left side of the body)
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
RT Right side (used to identify procedures performed on the right side of the body)
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
Date
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Notes
2025-01-01 Changed Short Description changed.
2011-01-01 Changed Short description changed.
1996-01-01 Added First appearance in code book in 1996.
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