0TV44CZ
Restriction Kidney Pelvis, Left to No Qualifier with Extraluminal Device, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | T Urinary System |
| Operation | V Restriction |
| Body Part | 4 Kidney Pelvis, Left |
| Approach | 4 Percutaneous Endoscopic |
| Device | C Extraluminal Device |
| Qualifier | Z No Qualifier |
Operation Definition
Partially closing an orifice or the lumen of a tubular body part
Procedure Overview
Restriction procedures in the urinary system are performed to partially narrow an orifice or the lumen of a tubular structure such as a ureter or the urethra. This family is most commonly encountered in the surgical management of stress urinary incontinence, where a sling, band, or suture technique is used to add resistance at the urethra so that involuntary urine leakage is reduced during coughing, exertion, or sudden movement.
These procedures do not close the passage completely; some degree of flow is preserved, which is what separates restriction from occlusion. Patients typically pursue these options after conservative measures like pelvic floor therapy have not adequately controlled symptoms, or when imaging or urodynamic testing has identified a specific area of the urinary tract that needs mechanical narrowing to function properly.
Anatomy & Axis Detail
Kidney Pelvis, Left
The left kidney pelvis collects urine from the calyces before it drains into the left ureter, and dilation or reflux here often reflects a ureteropelvic junction problem or chronic outflow resistance on that side. Restriction reduces the diameter of the pelvis without occluding it completely, aiming to correct redundancy or a wide, poorly draining funnel that predisposes to stasis and infection while preserving forward urine flow. The procedure requires care around the renal hilum, since the pelvis lies adjacent to segmental vessels that must be avoided as the lumen is narrowed. Laterality matters for accurate coding, so operative notes should confirm the left side explicitly and describe whether the narrowing is confined to the pelvis or extends toward the ureteropelvic junction, since involvement of the proximal ureter would change the body part reported.
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: Extraluminal Device
Extraluminal Device describes a device positioned on the outside surface of a tubular or hollow body part rather than within its lumen, such as a vascular banding or external stabilization device. It is the structural counterpart to Intraluminal Device, distinguished by its external placement relative to the vessel or duct wall rather than sitting inside the passageway itself.
Coding & Documentation
Coders should verify that the documentation describes a partial narrowing of the passage, such as placement of a sling or band, or plication of tissue around the urethra or ureter, without complete closure. The device or material used, along with the specific urinary structure treated, must be clearly stated in the operative report to support code assignment. A common error is mistaking Restriction for Occlusion, which is used only when the lumen is completely closed off, or for Supplement when the intent is reinforcement of a wall rather than narrowing of the passage itself.
Documentation should also clarify whether a device remains in place, since that affects whether a device value is reported alongside the procedure.