04HS03Z
Insertion Posterior Tibial Artery, Left to No Qualifier with Infusion Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 4 Lower Arteries |
| Operation | H Insertion |
| Body Part | S Posterior Tibial Artery, Left |
| Approach | 0 Open |
| Device | 3 Infusion Device |
| Qualifier | Z No Qualifier |
Operation Definition
Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part
Procedure Overview
Insertion procedures in the lower arteries place a nonbiological device into an artery to support or monitor circulation without replacing any part of the vessel itself. Typical examples include placing an intra-aortic balloon pump to assist a failing heart's forward flow, positioning an infusion device for delivering clot-dissolving medication or chemotherapy directly into a limb, or leaving a vascular access catheter in place for repeated treatments. The device stays functional inside the artery after the procedure ends, distinguishing this from work where something is simply passed through and removed.
These procedures are chosen when ongoing therapy or support is needed rather than a one-time fix - for example, a patient in cardiogenic shock may need mechanical circulatory support, or someone with a limb-threatening clot may need several days of localized thrombolytic drug delivery through a catheter left in the artery.
Anatomy & Axis Detail
Posterior Tibial Artery, Left
The left posterior tibial artery, one of the terminal branches of the tibioperoneal trunk, courses behind the medial malleolus to supply the plantar aspect of the foot and is frequently involved in the distal occlusive disease seen in diabetic and dialysis patients with critical limb ischemia. Insertion of a device into this artery, typically a low-profile stent or an infusion catheter for directed thrombolysis, aims to restore or maintain flow to the foot when limb-threatening ischemia or non-healing ulceration is present. The vessel's small diameter, deep anatomic position, and tendency toward heavy calcification require meticulous technique and precise device sizing. Left-sided documentation distinguishes the procedure from its right-sided counterpart, an important distinction given how often below-the-knee arterial disease affects both limbs.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Device: Infusion Device
Infusion Device denotes a device left in place to deliver medication, fluids, or other substances into a body part over time, such as an intrathecal or epidural pump. It is distinct from devices that merely monitor or mechanically support tissue, since its function is ongoing pharmacologic or fluid delivery rather than structural replacement. Common placements include the spinal canal, peritoneal cavity, and vascular access sites.
Coding & Documentation
Coders need the operative note to confirm that a device was left in the body, not merely passed through during the procedure, and to identify which specific artery received it. Common documentation to look for includes intra-aortic balloon pump placement, infusion catheter or pump insertion for continued drug delivery, and monitoring devices such as arterial pressure sensors. A frequent mistake is assigning Insertion when the device is actually a stent or graft meant to replace or reinforce the artery wall, which instead falls under Restriction, Replacement, or Supplement depending on the device's purpose. Coders should also verify the correct device value in the seventh character, since infusion devices, monitoring devices, and other appliances each have distinct values.