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Official Description

Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (ie, open, laparoscopic, robotic), initial, including implantation of mesh or other prosthesis when performed, total length of defect(s); greater than 10 cm, incarcerated or strangulated

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Common Language Description

The CPT® Code 49596 refers to the initial repair of anterior abdominal hernias, which include types such as epigastric, incisional, ventral, umbilical, and spigelian hernias. This procedure can be performed using various approaches, including open surgery, laparoscopic techniques, or robotic assistance. An anterior abdominal hernia occurs when tissue or parts of an organ, such as the intestines, protrude through a defect in the abdominal wall. The specific criteria for this code include hernias with a total length of defect greater than 10 cm that are either incarcerated or strangulated. Incarcerated hernias are those that cannot be reduced back into the abdominal cavity, while strangulated hernias involve compromised blood supply to the herniated tissue, which may lead to necrosis. The procedure typically involves the implantation of mesh or other prosthetic materials to reinforce the repair and reduce the risk of recurrence. This code is essential for accurately documenting and billing for complex hernia repairs that require significant surgical intervention and management of potentially compromised abdominal contents.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 49596 is indicated for the repair of anterior abdominal hernias that meet specific criteria. These indications include:

  • Incarcerated Hernia - A hernia that cannot be reduced back into the abdominal cavity, leading to potential complications.
  • Strangulated Hernia - A hernia where the blood supply to the herniated tissue is compromised, posing a risk of necrosis.
  • Defect Size - The total length of the hernia defect must be greater than 10 cm, indicating a significant surgical challenge.

2. Procedure

The procedure for CPT® Code 49596 involves several detailed steps to ensure effective repair of the hernia. The following procedural steps are typically performed:

  • Step 1: Incision - An incision is made over the hernia defect for open repairs, or a small incision is created near the defect for laparoscopic approaches. In laparoscopic procedures, a trocar is inserted, and pneumoperitoneum is established to allow for the introduction of a laparoscope.
  • Step 2: Dissection - The existing scar tissue is excised, and the skin and fat layers are dissected away from the hernia sac. Any adherent omentum and bowel are carefully dissected off the hernia sac to free it from the abdominal wall.
  • Step 3: Sac and Tissue Management - The hernia sac, along with its peritoneal lining and any existing scar tissue or suture material, is excised. If the hernia is an incisional type, the defect closure may involve reconstructing the linea alba, which is the midline muscle fiber sheet of the abdomen.
  • Step 4: Muscle Reconstruction - An incision is made in each anterior rectus muscle sheath about 1 cm from the medial edge, exposing the rectus muscle. The incision is extended along the length of the hernia, and the linea alba is reconstructed by suturing the two strips of anterior rectus muscle together, anchoring the lateral cut edges to the new linea alba.
  • Step 5: Inspection and Closure - If the abdominal contents protrude through the anterior rectus or transversus abdominis and internal oblique muscles, the hernia sac is opened and inspected. Healthy contents are returned to the abdomen, and any adhesions are dissected free. The defect openings in the fascia are then closed.
  • Step 6: Mesh Placement - To reduce the risk of recurrence, a mesh or prosthetic implant is typically placed. This may involve various techniques such as underlay, onlay, inlay, or wrap-around, with the mesh cut to the desired shape to reinforce the hernia repair.
  • Step 7: Resection (if necessary) - If the hernia repair requires the removal of any existing fractured, brittle, or aged mesh, this is reported separately. Additionally, if necrotic tissue is present, such as omentum or bowel, it may need to be resected during the procedure.

3. Post-Procedure

Post-procedure care for patients undergoing the repair of an incarcerated or strangulated hernia includes monitoring for signs of infection, managing pain, and ensuring proper wound healing. Patients may be advised to limit physical activity and avoid heavy lifting for a specified period to promote recovery. Follow-up appointments are essential to assess the surgical site and ensure that there are no complications, such as recurrence of the hernia or issues related to the implanted mesh. The healthcare provider will provide specific instructions regarding activity restrictions and signs to watch for that may indicate complications.

Short Descr RPR AA HRN 1ST > 10 NCR/STRN
Medium Descr RPR AA HERNIA 1ST > 10 CM NCRC8/STRANGULATED
Long Descr Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (ie, open, laparoscopic, robotic), initial, including implantation of mesh or other prosthesis when performed, total length of defect(s); greater than 10 cm, incarcerated or strangulated
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) 2 - Payment restriction for assistants at surgery does not apply to this procedure...
Co-Surgeons (62) 1 - Co-surgeons could be paid, though supporting documentation is required...
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) none
MUE 1

This is a primary code that can be used with these additional add-on codes.

49623 Add-on Code Resequenced Code MPFS Status: Active Code APC N Removal of total or near total non-infected mesh or other prosthesis at the time of initial or recurrent anterior abdominal hernia repair or parastomal hernia repair, any approach (ie, open, laparoscopic, robotic) (List separately in addition to code for primary procedure)
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).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
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).
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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.
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).
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
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
GW Service not related to the hospice patient's terminal condition
LT Left side (used to identify procedures performed on the left side of the body)
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
Q3 Live kidney donor surgery and related services
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
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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2023-01-01 Added Code added.
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