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Official Description

Colectomy, partial; with resection, with colostomy or ileostomy and creation of mucofistula

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 44144 involves a partial colectomy, which is the surgical removal of a segment of the colon, also known as the large intestine. This operation is performed to address various conditions affecting the colon, such as tumors, inflammatory bowel disease, or other significant pathologies. During this procedure, two distinct openings, referred to as stomas, are created. The first stoma is either a colostomy or an ileostomy, which serves as an outlet for stool to exit the body, bypassing the affected portion of the colon. The second stoma is a mucofistula, which is designed to drain mucus from the rectum. This type of procedure is often referred to as a double-barrel colostomy due to the presence of two separate stomas. The surgical technique involves mobilizing the segment of colon that is to be removed by carefully dividing the embryonic fusion planes and the peritoneum, ensuring that the blood supply to the remaining bowel is preserved. The mesentery, which is the tissue that attaches the intestines to the abdominal wall, is also divided. After the diseased or damaged segment of the colon is excised, the colostomy or ileostomy is created through a small incision in the skin at the designated site. This incision is extended through the subcutaneous tissue until the anterior rectus fascia is reached, which is then opened with care to protect the underlying muscle and its blood supply. The rectus fibers are separated using blunt dissection, allowing access to the peritoneal cavity. An opening of adequate size is made for the stoma, and the proximal segment of the colon or ileum is brought through this opening, ideally via a peritoneal tunnel to minimize the risk of postoperative complications such as stoma obstruction. The colon or cecum is then everted and sutured to the skin to secure the stoma in place. The second stoma for the mucofistula is created in a similar manner, utilizing the distal segment of the colon that remains attached to the rectum to facilitate mucus drainage.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 44144 is indicated for various conditions affecting the colon, particularly when a segment of the colon is diseased or damaged. The following are specific indications for performing a partial colectomy with colostomy or ileostomy and creation of a mucofistula:

  • Colon Cancer - The presence of malignant tumors within the colon that necessitate removal to prevent further spread of cancer.
  • Inflammatory Bowel Disease - Conditions such as Crohn's disease or ulcerative colitis that result in severe inflammation and damage to the colon.
  • Diverticulitis - Inflammation or infection of diverticula in the colon that may lead to complications requiring surgical intervention.
  • Trauma - Injury to the colon that may require resection of the affected segment to restore bowel function.
  • Obstruction - Bowel obstruction due to various causes, including strictures or adhesions, that necessitate surgical correction.

2. Procedure

The procedure for CPT® Code 44144 involves several critical steps, each essential for the successful completion of the surgery. The following outlines the procedural steps in detail:

  • Step 1: Mobilization of the Colon - The surgeon begins by mobilizing the segment of the colon that is to be removed. This is achieved by carefully dividing the embryonic fusion planes and the peritoneum, ensuring that the blood supply to the remaining bowel is preserved throughout the process. The mesentery, which supports the colon, is also divided to facilitate access.
  • Step 2: Resection of the Diseased Segment - Once mobilized, the diseased or damaged segment of the colon is identified and excised. This step is crucial to remove any pathological tissue that may be causing symptoms or complications.
  • Step 3: Creation of the Colostomy or Ileostomy - After resection, the colostomy or ileostomy is created. A small incision is made in the skin over the planned stoma site, and the incision is extended through the subcutaneous tissue down to the anterior rectus fascia. Care is taken to protect the underlying rectus muscle and its blood supply during this process. The fascia is opened, and the rectus fibers are separated using blunt dissection to access the peritoneal cavity.
  • Step 4: Formation of the Stoma - An opening of sufficient diameter is created in the peritoneum for the stoma. The proximal segment of the colon or ileum is then brought through this opening, ideally via a peritoneal tunnel to prevent postoperative obstruction. The colon or cecum is everted and sutured to the skin to secure the stoma in place.
  • Step 5: Creation of the Mucofistula - The site for the second stoma, the mucofistula, is prepared in a similar manner. An incision is made, and the distal segment of the colon that remains attached to the rectum is utilized to create the mucofistula, allowing for the drainage of mucus.

3. Post-Procedure

Post-procedure care following a partial colectomy with colostomy or ileostomy and creation of a mucofistula involves several important considerations. Patients are typically monitored for any signs of complications, such as infection or stoma-related issues. Pain management is also a critical aspect of post-operative care, and patients may be prescribed analgesics as needed. Additionally, dietary modifications may be recommended to facilitate recovery and adapt to the new bowel function. Patients will receive education on stoma care, including how to manage the colostomy or ileostomy and care for the mucofistula. Follow-up appointments are essential to assess healing, monitor for any complications, and provide ongoing support for the patient's adjustment to the changes in bowel function.

Short Descr PARTIAL REMOVAL OF COLON
Medium Descr COLECTOMY PRTL W/COLOST/ILEOST & MUCOFISTULA
Long Descr Colectomy, partial; with resection, with colostomy or ileostomy and creation of mucofistula
Status Code Active Code
Global Days 090 - Major Surgery
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) P1B - Major procedure - colectomy
MUE 1
CCS Clinical Classification 78 - Colorectal resection

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

44139 Addon Code MPFS Status: Active Code APC C CPT Assistant Article Illustration for Code Mobilization (take-down) of splenic flexure performed in conjunction with partial colectomy (List separately in addition to primary procedure)
96547 Add On Code MPFS Status: Active Code APC N Intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC) procedure, including separate incision(s) and closure, when performed; first 60 minutes (List separately in addition to code for primary procedure)
96548 Add On Code MPFS Status: Active Code APC N Intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC) procedure, including separate incision(s) and closure, when performed; each additional 30 minutes (List separately in addition to code for primary procedure)
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.
55 Postoperative management only: when 1 physician or other qualified health care professional performed the postoperative management and another performed the surgical procedure, the postoperative component may be identified by adding modifier 55 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.
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.
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.)
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).
AG Primary physician
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
CA Procedure payable only in the inpatient setting when performed emergently on an outpatient who expires prior to admission
CR Catastrophe/disaster related
ET Emergency services
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
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
RT Right side (used to identify procedures performed on the right side of the body)
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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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