ICD-10-PCS Billable Code

0TR78KZ

Replacement Ureter, Left to No Qualifier with Nonautologous Tissue Substitute, Via Natural or Artificial Opening Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemT Urinary System
OperationR Replacement
Body Part7 Ureter, Left
Approach8 Via Natural or Artificial Opening Endoscopic
DeviceK Nonautologous Tissue Substitute
QualifierZ No Qualifier

Operation Definition

Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part

Procedure Overview

Replacement procedures put in biological or synthetic material that physically takes over for all or part of a urinary structure that has been removed or has failed. The clearest example is placement of an artificial urinary sphincter to manage stress incontinence, or use of a segment of bowel or synthetic material to reconstruct the bladder after part of it has been taken out.

These procedures are chosen when native tissue can no longer perform its job and a substitute - whether a manufactured device or tissue moved from elsewhere in the body - is put in its place. Candidates include patients recovering from bladder cancer surgery, those with severe incontinence unresponsive to other treatments, or people whose urethra has been damaged beyond simple repair.

Because the replaced material functions in place of the original structure going forward, these procedures are usually more involved and longer-lasting in their effect than repair or reposition.

Anatomy & Axis Detail

Ureter, Left

Replacement of the left ureter involves excising a compromised segment, often due to extensive stricture, tumor involvement, radiation damage, or a failed previous reconstruction, and substituting it with other tissue, most frequently a segment of ileum fashioned into a conduit that bridges the gap between the renal pelvis and the bladder or a lower ureteral stump. This is distinct from simple repair, which restores the ureter's own tissue, since replacement introduces nonureteral material to reestablish the urinary pathway. Surgeons must carefully orient and anastomose the replacement segment to preserve peristaltic-like drainage and reduce the risk of reflux or stricture at the anastomotic sites. A stent commonly protects the reconstruction while it heals. Coders should confirm that a ureteral segment was actually excised and substituted, not merely repaired, dilated, or bypassed.

Approach: Via Natural or Artificial Opening Endoscopic

Via Natural or Artificial Opening Endoscopic describes instrumentation introduced through a natural orifice or a surgically created opening while using an endoscope for visualization, as in a routine colonoscopy performed through the anus. It differs from the plain Via Natural or Artificial Opening value by the added scope, and from Percutaneous Endoscopic by using an existing passage rather than a new skin puncture.

Device: Nonautologous Tissue Substitute

Nonautologous Tissue Substitute refers to biologic material sourced from a donor or another species, such as an allograft or xenograft, used to replace a body part. It differs from Autologous Tissue Substitute by tissue origin outside the patient's own body, and from Synthetic Substitute by being biologic rather than manufactured material.

Coding & Documentation

Documentation must show that material - whether a device, donor tissue, or the patient's own tissue harvested from elsewhere - was put in to functionally substitute for the body part, not just reinforce or patch it. The note should identify the material used and confirm that any diseased or damaged native tissue was removed first, since Replacement often follows a Resection or Excision performed in the same operative session.

A common coding mistake is applying Replacement when the correct root operation is actually Supplement, which reinforces existing tissue without taking over its function entirely. Coders also sometimes overlook that bladder augmentation using a bowel segment qualifies as Replacement because it uses tissue to take over bladder function, and instead code it only as the harvesting procedure.

Commonly Confused With

SupplementReplacement is frequently mixed up with Supplement, where the added material reinforces a body part that still performs its own function, versus Replacement where the material substitutes for the part entirely.
RepairIt is also distinct from Repair, which restores native anatomy without introducing substitute material, and from Insertion, which places a device to assist a still-functioning body part rather than to take its place.