02UN47Z
Supplement Pericardium to No Qualifier with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 2 Heart and Great Vessels |
| Operation | U Supplement |
| Body Part | N Pericardium |
| Approach | 4 Percutaneous Endoscopic |
| Device | 7 Autologous Tissue Substitute |
| Qualifier | Z 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
Pericardium
The pericardium is the fibrous and serous sac enveloping the heart, providing lubrication for cardiac motion and a barrier against infection, but it can be damaged, resected, or left with a defect after cardiac surgery, trauma, or pericardiectomy for constrictive disease. Supplementing the pericardium involves patching a defect in this sac, often using a bovine pericardial patch, synthetic mesh, or occasionally a native tissue substitute, to reconstruct the pericardial covering and reduce the risk of cardiac herniation or adhesion to the sternum. This is commonly performed after extensive pericardial resection during tumor removal or radical cardiac surgery, where leaving a large defect open risks the heart shifting position or twisting on the great vessels. Because the pericardium has minimal inherent tensile strength once opened, the patch material's flexibility and biocompatibility are key considerations in avoiding constrictive scarring.
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: 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.