ICD-10-PCS Billable Code

04HR03Z

Insertion Posterior Tibial Artery, Right to No Qualifier with Infusion Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System4 Lower Arteries
OperationH Insertion
Body PartR Posterior Tibial Artery, Right
Approach0 Open
Device3 Infusion Device
QualifierZ 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, Right

The right posterior tibial artery descends along the back of the leg from the tibioperoneal trunk, running behind the medial malleolus to help supply the foot and heel, and is a frequent target in the management of critical limb ischemia and diabetic foot disease. Insertion of a device here, such as a small-caliber stent or a catheter for localized thrombolytic infusion, addresses occlusive disease that threatens wound healing or limb salvage when other tibial vessels are also compromised. The vessel's deep course alongside the tibial nerve and its narrow, often heavily calcified lumen in this patient population make device delivery technically demanding and require careful fluoroscopic guidance. Right-sided laterality distinguishes this from the left posterior tibial artery, relevant because tibial disease is commonly multivessel and bilateral in severity.

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.

Commonly Confused With

RestrictionRestriction is the family most often confused with Insertion because both can involve placing a stent-like device, but Restriction narrows the diameter of the artery while Insertion leaves a device that assists a function without altering the vessel's shape.
SupplementSupplement is another close neighbor, used when a device reinforces or augments the wall of the artery rather than sitting within the lumen to perform a separate job.