ICD-10-PCS Billable Code

0MNV3ZZ

Release Lower Extremity Bursa and Ligament, Right to No Qualifier with No Device, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemM Bursae and Ligaments
OperationN Release
Body PartV Lower Extremity Bursa and Ligament, Right
Approach3 Percutaneous
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Procedure Overview

Release procedures free a bursa or ligament from something abnormally constraining it, using cutting or manual force to relieve that pressure. Unlike removing a foreign object, the abnormal constraint here is typically scar tissue, adhesions, or a tight band of the ligament itself pressing on a nerve or restricting motion.

The most familiar example is carpal tunnel release, where the transverse carpal ligament is cut to relieve pressure on the median nerve running underneath it. Similar procedures address trigger finger, where a tight pulley ligament catches the tendon, or joint contractures where scar tissue around a bursa or ligament limits normal movement.

These procedures are chosen when conservative treatment such as splinting, injections, or physical therapy has not resolved the constriction, and the goal is restoring normal movement or relieving nerve compression by cutting the tissue that is causing the problem.

Anatomy & Axis Detail

Lower Extremity Bursa and Ligament, Right

This body part designation applies when a constricting ligament or bursa in the right lower extremity cannot be assigned to a more specific site such as the hip, knee, ankle, or foot, for example a broad fascial or ligamentous band spanning the thigh or lower leg that limits joint excursion or entraps a neurovascular structure. Release divides the tethering tissue in place, distinct from excision, to restore mobility or decompress an adjacent structure without removing the ligament itself. Because this code is used when the anatomy crosses conventional regional boundaries or when documentation does not localize the affected structure precisely, coders should confirm that no more specific ankle, foot, knee, or hip ligament code applies before defaulting here. The clinical goal remains improved range of motion or relief of compressive symptoms.

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.

Coding & Documentation

The documentation should identify what was constraining the body part and confirm the surgeon cut or forcibly freed the ligament or bursa itself to relieve that constraint. This differs from cases where the ligament is the source of pressure on a different structure, such as a nerve, since ICD-10-PCS codes the release to the body part being freed, which is usually the ligament that was cut, not the nerve that benefited.

A frequent mixup is coding Release when the actual procedure removed a discrete blockage, such as scar tissue excised entirely rather than simply divided, which would instead point toward Excision. Coders also need to check the body part convention carefully in carpal tunnel and similar cases, since the transverse carpal ligament is classified under Bursae and Ligaments even though the clinical benefit is to a nerve, and the release is coded to the ligament being cut, not the nerve.

Commonly Confused With

DivisionRelease is frequently confused with Division, which also involves cutting a body part but without any therapeutic objective of freeing it from constraint.
ExcisionIt is also mixed up with Excision, since both can involve cutting scar tissue; the difference is whether restrictive tissue is cut through to free the structure (Release) or whether a piece of tissue is actually cut out and removed (Excision).