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    v1.0.31
    OpenPayerBilling CodesExcision Procedures on the Intestines (Except Rectum)CPT cpt-44155-proctocolectomy-with-end-ileostomy
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    CPT 44155: Total Colectomy with Proctectomy and End Ileostomy

    Medicare pays $1941 on average nationally for this procedure.

    CPT code 44155 describes a total colectomy with proctectomy and end ileostomy in which the surgeon removes the entire colon and rectum and brings the terminal ileum to the abdominal wall as an ileostomy; the service is a surgical abdominal procedure typically performed in an inpatient hospital or surgical center setting under general anesthesia for conditions requiring removal of the colon and rectum.

    For related coverage guidance, see recent payer policy updates: Achalasia and Gastroesophageal Reflux Disease (GERD) - Minimally Invasive Procedures - Medical Policy, Esophageal Brush Biopsy, Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disorders.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult with refractory inflammatory bowel disease (such as ulcerative colitis) or synchronous/multifocal colorectal neoplasia who requires removal of the entire colon and rectum with creation of a permanent end ileostomy. The patient presents after failed medical management, ongoing severe colitis with bleeding, or cancerous/neoplastic lesions not amenable to segmental resection. Preoperative workflow includes confirmatory colonoscopy and imaging, multidisciplinary surgical consent, bowel preparation as applicable, optimization of nutrition and comorbidities, informed discussion of ostomy care, and coordination with enterostomal therapy nursing.

    Intraoperative workflow involves general anesthesia, midline laparotomy or laparoscopic approach converted as needed, total proctocolectomy with mesenteric vascular control, rectal cuff removal or mucosectomy when indicated, and creation of a terminal ileostomy matured to the abdominal wall. Postoperative care includes pain control, early mobilization, ostomy education, monitoring for complications (bleeding, anastomotic leak if staged procedure, small-bowel obstruction, wound infection), and discharge planning with outpatient ostomy follow-up.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    44141Colectomy, partial; with ileostomy or ileoproctostomy (separate procedure)Performed for partial colon resections that may precede or be contrasted with total proctocolectomy; used when only a segmental colectomy with ileostomy is indicated.
    44143Colectomy, total; with ileostomy (separate procedure)Alternative coding for total colectomy with ileostomy when rectum is not removed; related when rectal preservation is possible.
    44160Colectomy, partial; with skin level cecostomy or colostomyRepresents other stoma-creating procedures that may be considered in different clinical scenarios.
    44625Revision of enterostomy (eg, ileostomy)Performed when stoma requires revision or takedown following complications or functional issues after the initial creation.
    44320Enterostomal therapy services (education/management) — note: CPT descriptor variesRepresents perioperative ostomy education and management by specialized nursing; often billed by wound/ostomy clinics.
    45395Proctosigmoidoscopy; rigid or flexible, diagnostic with biopsyDiagnostic endoscopic procedures performed preoperatively to assess mucosal disease or obtain tissue prior to definitive surgery.

    Related Modifiers

    12 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…
    58Modifier 58 (Staged or related procedure/service by the same physician during the postoperative period) indicates that a subsequent procedure performed by the same provider during the…- Use modifier 58 when the same physician/QHP performs a procedure during the postoperative/global period of an earlier procedure and the subsequent procedure is either planned or anticipated…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…

    Showing 1–10 of 12

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207P00000X
    207L00000X
    2080P0207X
    3336C0002X
    163WP1700X
    111NN1001X
    1835C0206X
    175F00000X

    Related ICD-10-CM Codes

    27 rows

    ICD-10-CM CodeDescription
    A09Infectious gastroenteritis and colitis, unspecified
    C17.9Malignant neoplasm of small intestine, unspecified
    C18.9Malignant neoplasm of colon, unspecified
    C19Malignant neoplasm of rectosigmoid junction
    C20Malignant neoplasm of rectum
    C21.0Malignant neoplasm of anus, unspecified
    D12.6Benign neoplasm of colon, unspecified
    D37.5Neoplasm of uncertain behavior of rectum
    K50.011Crohn's disease of small intestine with rectal bleeding
    K50.012Crohn's disease of small intestine with intestinal obstruction

    Showing 1–10 of 27

    Related Payer Policy Updates

    Specialty: Gastroenterology1 / 4

    10 rows

    PolicyPayerEffective Date
    Achalasia and Gastroesophageal Reflux Disease (GERD) - Minimally Invasive Procedures - Medical PolicyHealth-New-England2027-02-01
    Esophageal Brush Biopsycaresourcegeorgia2026-12-01
    Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disordersbcbsvermont2026-12-01
    Gastric Pacing/Gastric Electrical Stimulation (GES)Cigna2026-11-15
    Percutaneous Electrical Nerve Field Stimulation for Disorders of Gut-Brain Interactionpremerabluecrossofwashington2026-11-06
    Percutaneous electrical nerve field stimulation for disorders of gut-brain interactionpremerabluecrossofwashington2026-11-06
    Percutaneous Electrical Nerve Field Stimulation for Disorders of Gut-Brain Interactionpremerabluecrossofwashington2026-11-06
    Esophagogastroduodenoscopy (EGD) Coverage Policyevicore2026-11-05
    Non-invasive Testing for Liver FibrosisModa Health2026-11-01
    Surgical Site of Care - Colonoscopy and Sigmoidoscopyregence2026-11-01

    Related Codes

    CPT-44100-SMALL-INTESTINE-CAPSULE-BIOPSY

    CPT 44100: Small Intestine Biopsy via Oral Capsule

    CPT-44110-OPEN-EXCISION-INTESTINAL-LESION-SINGLE-INCISION

    CPT 44110: Excision of Lesion(s) From Small or Large Intestine

    CPT-44111-INTESTINAL-LESION-EXCISION-MULTIPLE-INCISIONS

    CPT 44111: Excision of Intestinal Lesions via Multiple Incisions

    CPT-44120-SMALL-INTESTINE-RESECTION-PRIMARY-ANASTOMOSIS

    CPT 44120: Small Bowel Resection with Primary Anastomosis

    CPT-44121-ADDITIONAL-SMALL-INTESTINE-RESECTION-ANASTOMOSIS

    CPT 44121: Additional Small Intestine Resection and Anastomosis

    CPT-44125-SMALL-INTESTINE-RESECTION-WITH-STOMA-CREATION

    CPT 44125: Small Bowel Resection with Enterostomy

    CPT-44126-SMALL-BOWEL-RESECTION-CONGENITAL-ATRESIA-END-TO-END-ANASTOMOSIS

    CPT 44126: Small Bowel Resection for Intestinal Atresia with Anastomosis

    CPT-44127-SMALL-BOWEL-RESECTION-ANASTOMOSIS-INTESTINAL-ATRESIA

    CPT 44127: Resection and Anastomosis for Congenital Small-Bowel Atresia

    CPT-44128-SMALL-BOWEL-RESECTION-ANASTOMOSIS-CONGENITAL-ATRESIA

    CPT 44128: Resection of Small Intestine for Congenital Atresia

    CPT-44130-INTESTINAL-ANASTOMOSIS-BOWEL-RESECTION-ANASTOMOSIS

    CPT 44130: Intestinal Anastomosis, With or Without Stoma

    Showing 1–10 of 29

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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