ICD-10-PCS Billable Code

02UQ37Z

Supplement Pulmonary Artery, Right to No Qualifier with Autologous Tissue Substitute, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System2 Heart and Great Vessels
OperationU Supplement
Body PartQ Pulmonary Artery, Right
Approach3 Percutaneous
Device7 Autologous Tissue Substitute
QualifierZ No Qualifier

Operation Definition

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

Procedure Overview

Supplement procedures add biological or synthetic material to reinforce or enhance a portion of the heart or a great vessel without removing the existing structure. Common examples include patch repair of a septal defect, reinforcing a weakened area of the aortic wall, or placing material to strengthen a valve annulus during repair.

The goal is to shore up tissue that is present but insufficient on its own, whether because of a congenital hole, an aneurysm that has thinned the vessel wall, or a valve structure that needs extra support to function properly. Unlike a replacement, the body's own tissue stays in place and the added material works alongside it.

Patients typically encounter this term in the context of congenital defect closures, aortic aneurysm repairs, and valve repair techniques that use patches, rings, or other reinforcing materials rather than swapping out the whole valve or vessel.

Anatomy & Axis Detail

Pulmonary Artery, Right

The right pulmonary artery carries deoxygenated blood from the pulmonary trunk to the right lung, and it may be congenitally hypoplastic, stenotic from prior surgical banding, or narrowed by external compression, each of which can restrict pulmonary blood flow to that lung. Supplementing the right pulmonary artery means widening a stenotic or hypoplastic segment with a patch of pericardial or synthetic material sewn along the vessel wall, a technique frequently used in staged congenital heart repairs where branch pulmonary artery growth has not kept pace with the rest of the circulation. Because this vessel passes posterior to the ascending aorta and superior vena cava, the surgical approach and patch orientation must account for these adjacent structures, and imaging before the procedure typically confirms the length and severity of the stenotic segment being addressed.

Approach: Percutaneous

Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.

Device: Autologous Tissue Substitute

Autologous Tissue Substitute identifies a device value where material harvested from the patient's own body, such as an autograft, is used to replace or reconstruct a body part. Its defining feature is tissue origin from the patient, setting it apart from Nonautologous Tissue Substitute, sourced from a donor or animal, and Synthetic Substitute, made of manufactured material.

Coding & Documentation

Coders assign Supplement when the note documents that material, biological or synthetic, was added to reinforce or augment existing anatomy, such as closing a septal defect with a patch or buttressing a vessel wall. The documentation should identify the material used and confirm that native tissue was not removed and replaced, only strengthened.

The most frequent error is confusing patch closure of a defect, which is Supplement, with actual replacement of a structure, which requires taking out the original part. Another common mistake is missing that some valve repairs combine Supplement for annuloplasty ring placement with Repair for other steps done in the same operative session, each of which needs its own code.

Commonly Confused With

ReplacementSupplement is closely confused with Replacement, where the distinction is whether native tissue is removed, as in Replacement, or left in place and reinforced, as in Supplement.
RepairIt also overlaps with Repair, the default root operation used when no other term fits; if a patch is placed specifically to reinforce or close a defect using added material, Supplement takes priority over Repair.
RestrictionCoders should also distinguish Supplement from Restriction, since a patch that narrows an oversized structure to normal caliber may actually reflect a Restriction if that narrowing is the primary intent rather than reinforcement.