ICD-10-PCS Billable Code

0MND0ZZ

Release Lower Spine Bursa and Ligament to No Qualifier with No Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemM Bursae and Ligaments
OperationN Release
Body PartD Lower Spine Bursa and Ligament
Approach0 Open
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 Spine Bursa and Ligament

This body part refers to the ligaments stabilizing the lumbar and sacral spine, including the ligamentum flavum, iliolumbar ligaments, and the interspinous and longitudinal ligaments below the thoracic region. Release is a core step in lumbar decompression for spinal stenosis, where a hypertrophied ligamentum flavum buckles into the canal and compresses the cauda equina or nerve roots, producing neurogenic claudication. The surgeon frees or removes the constricting ligamentous tissue, often alongside laminotomy, to widen the canal and lateral recesses. Because lower back pain and radiculopathy have many causes, documentation should tie the release specifically to ligamentous compression at a named lumbar or sacral level rather than to bony or discogenic pathology treated by other means.

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.

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).