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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); 3 cm to 10 cm, incarcerated or strangulated

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Common Language Description

The CPT® Code 49594 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 repair process involves addressing hernias that are classified as incarcerated or strangulated, meaning that the contents of the hernia sac cannot be easily pushed back into their normal position within the abdomen, and there is a risk of compromised blood circulation to those contents. The total length of the defect being repaired ranges from 3 cm to 10 cm. The procedure may also involve the implantation of mesh or other prosthetic materials to reinforce the repair and reduce the likelihood of recurrence. This code is specifically designated for cases where the hernia is not reducible, indicating a more complex surgical intervention is required to restore normal anatomy and function.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 49594 is indicated for the repair of anterior abdominal hernias that are classified as incarcerated or strangulated. These hernias may present with the following conditions:

  • Incarcerated Hernia - A hernia where the contents cannot be pushed back into the abdomen, leading to potential complications.
  • Strangulated Hernia - A more severe condition where the blood supply to the herniated tissue is compromised, risking necrosis.
  • Defect Size - The procedure is indicated for hernias with a total defect length ranging from 3 cm to 10 cm.

2. Procedure

The procedure for CPT® Code 49594 involves several detailed steps to effectively repair the hernia. The initial step is to make an incision over the hernia defect for open repairs, or alternatively, a small incision is made near the defect for laparoscopic approaches, where a trocar is inserted to establish pneumoperitoneum. Additional portal incisions are created to allow for the insertion of surgical instruments or robotic assistance. Once access is achieved, any existing scar tissue is excised, and the skin and fat layers are carefully dissected away from the hernia sac. The next step involves dissecting any adherent omentum and bowel from the inner surface of the hernia sac, ensuring that these structures are freed from the abdominal wall. The hernia sac, along with its peritoneal lining and any existing suture material, is then excised. Following this, the normal tissue of the linea alba, which is a fibrous structure in the midline of the abdomen, is exposed. The abdominal wall is sutured closed, or alternatively, the linea alba may be reconstructed by approximating two strips of the anterior rectus muscle in the midline to form a new linea alba. If the hernia involves protrusion through the anterior rectus or transversus abdominis and internal oblique muscles, the hernia sac is opened and inspected, with healthy contents being returned to the abdominal cavity. Any adherent omentum or other adhesions are dissected free, and the hernia sac is excised. The defect openings in the fascia are then closed. To prevent recurrence, placement of mesh or a prosthetic implant is typically performed. This mesh is cut to the desired shape and can be applied using various techniques, including underlay, onlay, inlay, wrap-around, or a combination of these methods. If the repair necessitates the removal of any existing fractured, brittle, or aged mesh, this procedure is reported separately. The entire process is critical for restoring normal anatomy and function while addressing the complications associated with incarcerated or strangulated hernias.

3. Post-Procedure

Post-procedure care following the repair of an incarcerated or strangulated hernia involves monitoring for any signs of complications, such as infection or recurrence of the hernia. Patients are typically advised to follow specific guidelines regarding activity restrictions to promote healing and prevent strain on the surgical site. Pain management may be necessary, and patients should be educated on signs of complications that warrant immediate medical attention. Follow-up appointments are essential to assess the healing process and ensure that the repair is successful. The expected recovery time may vary based on the individual’s health status and the complexity of the procedure performed.

Short Descr RPR AA HRN 1ST 3-10 NCR/STRN
Medium Descr RPR AA HERNIA 1ST 3-10 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); 3 cm to 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 Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Non office-based surgical procedure added in CY 2008 or later; payment based on OPPS relative payment weight.
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)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
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.
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).
47 Anesthesia by surgeon: regional or general anesthesia provided by the surgeon may be reported by adding modifier 47 to the basic service. (this does not include local anesthesia.) note: modifier 47 would not be used as a modifier for the anesthesia procedures.
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.
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
ET Emergency services
GA Waiver of liability statement issued as required by payer policy, individual case
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
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)
SA Nurse practitioner rendering service in collaboration with a physician
SG Ambulatory surgical center (asc) facility service
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
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2023-01-01 Added Code added.
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