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Official Description

Incision and drainage of vulva or perineal abscess

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 56405 involves the surgical intervention known as incision and drainage of a vulvar or perineal abscess. An abscess is a localized collection of pus that can occur in various parts of the body, including the vulva or perineum, which are areas of the female genitalia. The physician initiates the procedure by making a small incision in the skin directly over the site of the abscess. This incision allows for the drainage of the accumulated pus, which is essential for alleviating pain and preventing further complications. During the procedure, laboratory specimens may be collected and sent for culture to identify any infectious organisms present, which can guide appropriate antibiotic therapy. To manage any bleeding that may occur during the drainage, pressure is applied to the area. After the drainage is completed, the site is typically packed with gauze to promote healing and prevent the re-accumulation of fluid. This gauze packing is usually removed approximately 24 hours post-procedure, allowing for further assessment of the site and ensuring that the area is healing properly.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure of incision and drainage of a vulvar or perineal abscess is indicated for the following conditions:

  • Vulvar Abscess The presence of a localized collection of pus in the vulvar region, which may cause significant pain, swelling, and discomfort.
  • Perineal Abscess A localized accumulation of pus in the perineal area, often resulting from infection, which can lead to severe pain and potential complications if not addressed.
  • Signs of Infection Symptoms such as redness, warmth, and tenderness in the affected area, indicating an underlying infection that requires drainage to prevent further complications.

2. Procedure

The procedure for incision and drainage of a vulvar or perineal abscess involves several critical steps to ensure effective treatment and patient safety:

  • Step 1: Preparation The physician begins by preparing the patient and the surgical site. This includes obtaining informed consent, ensuring the patient is in a comfortable position, and cleaning the area with an antiseptic solution to minimize the risk of infection.
  • Step 2: Anesthesia Local anesthesia is administered to numb the area around the abscess, ensuring that the patient experiences minimal discomfort during the procedure.
  • Step 3: Incision A small incision is made in the skin over the abscess. This incision is strategically placed to allow for optimal drainage of the pus while minimizing damage to surrounding tissues.
  • Step 4: Drainage The physician gently expresses the abscess to facilitate the drainage of pus. This step is crucial for relieving pressure and pain associated with the abscess.
  • Step 5: Specimen Collection If indicated, laboratory specimens may be collected from the abscess for culture and sensitivity testing. This helps in identifying the causative organisms and determining appropriate antibiotic therapy.
  • Step 6: Hemostasis After drainage, pressure is applied to the site to control any bleeding that may occur. This is an important step to ensure that the area remains stable and reduces the risk of complications.
  • Step 7: Packing The abscess cavity is packed with sterile gauze to promote healing and prevent re-accumulation of fluid. The packing helps to absorb any remaining drainage and provides support to the healing tissue.
  • Step 8: Post-Procedure Care The physician provides instructions for post-procedure care, including how to care for the incision site and when to return for follow-up. The gauze packing is typically removed approximately 24 hours after the procedure.

3. Post-Procedure

After the incision and drainage procedure, the patient is monitored for any immediate complications, such as excessive bleeding or signs of infection. The gauze packing placed in the abscess site is usually removed about 24 hours later, allowing for assessment of the healing process. Patients are advised on how to care for the incision site, including keeping it clean and dry, and to watch for any signs of infection, such as increased redness, swelling, or discharge. Follow-up appointments may be scheduled to ensure proper healing and to discuss the results of any cultures taken during the procedure. Pain management may also be addressed, with recommendations for over-the-counter pain relievers or prescribed medications as needed.

Short Descr I & D OF VULVA/PERINEUM
Medium Descr I&D VULVA/PERINEAL ABSCESS
Long Descr Incision and drainage of vulva or perineal abscess
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) 2 - Co-surgeons permitted and no documentation required if the two- specialty requirement is met.
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) P5E - Ambulatory procedures - other
MUE 2
CCS Clinical Classification 132 - Other OR therapeutic procedures, female organs
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.
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.
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).
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).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 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.
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
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.)
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.)
AG Primary physician
AM Physician, team member service
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)
CG Policy criteria applied
CR Catastrophe/disaster related
ER Items and services furnished by a provider-based, off-campus emergency department
FS Split (or shared) evaluation and management visit
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
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
KX Requirements specified in the medical policy have been met
LT Left side (used to identify procedures performed on the left side of the body)
PN Non-excepted service provided at an off-campus, outpatient, provider-based department of a hospital
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)
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
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
Action
Notes
1993-01-01 Added First appearance in code book in 1993.
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