0T164JC
Bypass Ureter, Right to Ileocutaneous with Synthetic Substitute, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | T Urinary System |
| Operation | 1 Bypass |
| Body Part | 6 Ureter, Right |
| Approach | 4 Percutaneous Endoscopic |
| Device | J Synthetic Substitute |
| Qualifier | C Ileocutaneous |
Operation Definition
Altering the route of passage of the contents of a tubular body part
Procedure Overview
Bypass procedures in the urinary system reroute the flow of urine around a damaged, obstructed, or diseased segment so it can drain through a new path instead. Common examples include an ileal conduit or continent urinary diversion after bladder removal, a ureteroneocystostomy that reconnects a ureter to the bladder at a new site, or a yeloureteral bypass for a blocked ureteropelvic junction. These operations are performed when a tumor, stricture, chronic obstruction, or a failed bladder makes normal drainage unsafe, since backed-up urine can damage the kidneys or cause repeated infections.
Patients typically encounter these procedures alongside cancer treatment, after trauma, or when a congenital narrowing has caused progressive kidney damage. The new pathway may be temporary, to protect a healing repair, or permanent, when the original structure cannot be salvaged.
Anatomy & Axis Detail
Ureter, Right
The right ureter is the muscular tube carrying urine from the kidney pelvis to the bladder, and bypass becomes necessary when a segment is irreparably obstructed or destroyed by stricture, tumor invasion, or extensive fibrosis from prior surgery or radiation, such that the natural channel can no longer be restored by simple repair. The procedure creates an alternate route for urine, which may involve connecting healthy ureter above the defect to the bladder, bowel segment, or skin, bypassing the diseased length rather than excising it. On the right, the ureter's course near the appendix, cecum, and iliac vessels can influence which alternate pathway is feasible. Because the ureter is a tubular structure, coding depends heavily on identifying the specific conduit used to reroute flow around the obstruction.
Approach: Percutaneous Endoscopic
Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.
Device: Synthetic Substitute
Synthetic Substitute designates a device made from manufactured, non-biologic material, such as mesh or prosthetic components, used to replace or augment a body part. It is distinguished from the two tissue substitute categories by its artificial composition, which carries different considerations for integration and long-term durability than biologic grafts.
Qualifier: Ileocutaneous
Ileocutaneous designates a bypass that connects the ileum directly to the skin surface, creating an external drainage or diversion pathway, as in an ileostomy-type procedure. It signals that intestinal content is redirected outward rather than to another internal segment of bowel. It parallels Colocutaneous but applies specifically when the ileum, not the colon, is the segment involved.
Coding & Documentation
Coders assign Bypass when documentation confirms a new route was created "from" one urinary structure "to" another (or to the skin, as in a conduit), rather than a repair of the existing channel. The operative note must name both the bypass origin and the qualifier destination, since the seventh-character qualifier changes with the target (bladder, ileum, cutaneous, etc.). A frequent error is coding Bypass when the surgeon actually performed Repair or Dilation of an existing passage rather than constructing an alternate route; another is missing the correct device value when a stent or conduit segment is left in place.