CPT 44850 Mesenteric Defect Repair Reimbursement | OpenPayer

Summary & Overview

CPT 44850: Repair (Suture) of Mesenteric Defect

CPT code 44850 represents surgical suturing of a mesenteric defect to treat or prevent intestinal obstruction. Nationally, this code captures a focused abdominal surgical repair that can be performed in hospital operating rooms or ambulatory surgical centers and is relevant for acute surgical care, postoperative management, and billing for intestinal obstruction prevention or treatment. The code matters because it reflects an intervention that can prevent bowel ischemia, reduce reoperation rates, and influence inpatient surgical utilization and costs.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context on when the procedure is used, benchmarks for billing and utilization where available, and summaries of coding considerations tied to operative setting and service type. The publication also outlines common modifiers and reporting practices when applicable and highlights areas where policy updates or payer-specific rules commonly affect reimbursement and claims adjudication. Data not available in the input for specific utilization metrics, ICD-10 pairings, or payer edits is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 44850mesentery repairabdominal surgeryintestinal obstructionsurgical billingoperating roomambulatory surgical centergeneral surgery

Billing Code Overview

CPT code 44850 describes surgical repair of a defect in the mesentery, the peritoneal lining that supports the intestines. The procedure involves suturing the mesenteric defect to treat or prevent intestinal obstruction or internal herniation that can compromise bowel function.

Service type: Surgical — abdominal/visceral repair

Typical site of service: Inpatient or outpatient hospital operating room or ambulatory surgical center, depending on clinical context and patient condition.

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A typical patient is a 56-year-old adult admitted to the hospital with symptoms of progressive abdominal pain, distension, nausea, and obstipation after prior abdominal surgery. Imaging (CT abdomen/pelvis) demonstrates small-bowel obstruction with evidence of adhesive bands and a focal mesenteric defect placing bowel at risk for internal herniation. The surgical team performs a laparotomy or laparoscopy to explore the abdomen, identify the mesenteric defect or tear, and suture the mesentery to close the defect and reduce tension on the bowel, thereby treating or preventing intestinal obstruction.

The clinical workflow includes preoperative evaluation (history, physical exam, labs, imaging), informed consent for exploratory abdominal surgery with possible bowel repair or resection, anesthesia clearance, operative repair of the mesentery using absorbable sutures, inspection for bowel viability, and postoperative monitoring for return of bowel function, pain control, and wound care. Discharge planning includes activity limitations, follow-up instructions, and indications for urgent return.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work required to suture the mesentery substantially exceeds typical effort due to inflammation, dense adhesions, or complex anatomy.

Taxonomy Code	Specialty	Notes
208100000X	General Surgery	Most common specialty performing mesenteric suture repairs during laparotomy or laparoscopy.
208VP0000X	Colon & Rectal Surgery	Often involved when obstruction is distal or bowel resection is anticipated.
2080S0001X	Surgical Critical Care	Participates in complex, unstable patients needing operative management of obstruction.
207L00000X	Obstetrics & Gynecology	May be involved if gynecologic adhesions contribute to mesenteric defects (less common).
2086S0122X	Pediatric Surgery	Performs this procedure in pediatric patients when indicated.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`K56.60`	Unspecified intestinal obstruction	Common indication for mesenteric repair when obstruction etiology is unclear and mesenteric defects are suspected.
`K56.69`	Other intestinal obstruction	Includes obstructions due to internal hernia or mesenteric defects requiring suture repair.
`K66.1`	Adhesions (postprocedural) of peritoneum	Postoperative adhesions can create mesenteric defects or tether bowel, leading to obstruction corrected by mesenteric suturing.
`K65.0`	Acute peritonitis	Inflammatory conditions may necessitate inspection and repair of mesenteric tears during operative management.
`K91.89`	Other complications of digestive system, not elsewhere classified	Used when complications related to prior surgery produce mesenteric defects requiring repair.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`49000`	Exploratory laparotomy, exploratory celiotomy with or without biopsy(s) (separate procedure)	Performed when open abdominal exploration is required prior to locating and suturing a mesenteric defect.
`44950`	Enterolysis (separate procedure)	Adhesiolysis often accompanies mesenteric repair to free entrapped bowel before mesenteric suturing.
`44120`	Enterotomy, small intestine; simple closure	Used when a small enterotomy is required for inspection or decompression during management of obstruction and closed in the same session.
`44140`	Colectomy, partial; single segment (e.g., right or left hemicolectomy)	Performed when nonviable colon or ischemic bowel is found and resection is required in addition to mesenteric repair.
`49560`	Repair initial incisional or ventral hernia; reducible	May be performed when mesenteric defects are associated with hernia-related internal herniation requiring hernia repair.
`43760`	Laparoscopy, surgical, enterolysis (freeing adhesions)	Minimally invasive adhesiolysis often performed concomitantly with mesenteric defect closure.