Summary & Overview
CPT 44979: Intra-abdominal Colorectal Surgical Procedure
CPT code 44979 denotes an intra-abdominal colorectal surgical procedure used for therapeutic management of diseases affecting the large intestine. Surgical colorectal codes like 44979 matter nationally because they represent higher-acuity operative care with implications for hospital resource use, surgical quality measurement, and payer reimbursement frameworks. Accurate coding supports clinical documentation, claims adjudication, and population-level monitoring of operative colorectal care.
This publication covers major national payers including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of what the code represents, national benchmarking context where available, common billing considerations, and clinical context tied to colorectal surgery practice. The report highlights coding nuances that affect service line reporting and typical sites of service for colorectal procedures. It also outlines where additional data is required and notes areas for policy attention, such as inpatient versus outpatient designation and implications for payment and quality measurement.
Intended for hospital billing leaders, surgical departments, and payers, the summary provides a concise reference to understand CPT code 44979, its clinical role, and the payer landscape relevant to national billing and policy discussions.
Billing Code Overview
CPT code 44979 represents a surgical procedure related to the large intestine. The code describes an intra-abdominal colorectal procedure performed for therapeutic purposes. The service type is a surgical colorectal procedure. The typical site of service is an inpatient or outpatient hospital surgical setting, depending on clinical complexity and physician decision-making.
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Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting with symptomatic benign or malignant disease of the small or large intestine requiring partial colectomy with anastomosis. The patient may have failed conservative therapy for diverticulitis with stricture, have obstructing colon cancer requiring resection, or present with ischemic or inflammatory bowel disease necessitating segmental bowel resection. Preoperative evaluation includes history and physical, imaging (CT abdomen/pelvis), colonoscopy as indicated, and informed consent discussing risks of anastomotic leak, infection, bleeding, and need for diversion.
In the operating room, the general surgeon performs an open or laparoscopic-assisted colectomy with resection of the diseased bowel segment and creation of a primary anastomosis. Intraoperative steps include vascular ligation, mesenteric mobilization, bowel resection, and hand-sewn or stapled anastomosis. Typical site of service is an inpatient hospital operating room; the service type is a major surgical procedure. Postoperative workflow includes immediate recovery in PACU, inpatient monitoring for return of bowel function, pain control, and management of drains or stomas if created. Discharge planning involves outpatient follow-up and pathology review for oncologic cases.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased Procedural Services | Use when work required is substantially greater than usual (e.g., difficult dissection, extensive adhesiolysis beyond typical for this procedure). |