ICD-10-PCS Billable Code

0SGJ07Z

Fusion Tarsal Joint, Left to No Qualifier with Autologous Tissue Substitute, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemS Lower Joints
OperationG Fusion
Body PartJ Tarsal Joint, Left
Approach0 Open
Device7 Autologous Tissue Substitute
QualifierZ No Qualifier

Operation Definition

Joining together portions of an articular body part rendering the articular body part immobile

Procedure Overview

Fusion, also called arthrodesis, permanently joins the bones of a lower joint so that the joint can no longer move, converting a painful or unstable joint into a solid, stable one. It is used on the hip, knee, ankle, foot, and lumbar or lumbosacral spinal joints for conditions like severe arthritis, joint instability, failed prior surgery, deformity correction, or chronic pain that has not responded to less invasive treatment. Hardware such as screws, plates, or rods, sometimes combined with a bone graft, holds the joint surfaces together while they grow into one continuous piece of bone.

Because fusion eliminates motion at the treated joint, it is generally considered after other options such as medication, injections, or partial procedures have failed to control symptoms. Spinal fusion in the lumbar region is one of the most common examples, performed for conditions like degenerative disc disease, spondylolisthesis, or spinal instability.

Recovery typically takes several months as the bone heals across the joint, and patients can expect a trade of joint mobility for pain relief and structural stability.

Anatomy & Axis Detail

Tarsal Joint, Left

On the left foot, the tarsal joints link the calcaneus, talus, navicular, cuboid, and three cuneiforms, giving the hindfoot and midfoot the mobility needed to accommodate walking surfaces. When arthritis, avascular necrosis of the talus, or a malunited fracture destabilizes this region, fusion eliminates painful motion by permanently joining the affected bones. Surgeons prepare the cartilage on each side of the target joint and hold the bones together with hardware while healing occurs. Because the tarsus contains multiple distinct joints rather than one, operative notes should identify exactly which articulation or combination of articulations was addressed, since a triple arthrodesis involving subtalar, talonavicular, and calcaneocuboid surfaces is coded differently from a single isolated tarsal joint fusion.

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: 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 need documentation confirming that articular surfaces were joined with the intent of eliminating motion, along with the device used (bone graft substitute, autograft, nonautograft, or internal fixation) and, for spinal fusion, the number of vertebral joints involved, since each level typically requires its own code. A frequent error is under-coding multilevel spinal fusions by capturing only one joint level instead of each level fused. Another common mistake is confusing the qualifier for graft material, since autologous bone graft, synthetic substitute, and no-graft fixation all carry different qualifier values that materially change the code. Coders should also check whether an anterior and posterior approach were both performed at the same spinal level, which requires separate codes for each approach.

Commonly Confused With

ExcisionExcision (0SB) and Extirpation (0SC) are often performed just before Fusion as the joint surfaces are debrided or cleared of loose material, but those preparatory steps are coded separately from the fusion itself and should not be folded into it.
InsertionInsertion or Replacement procedures involving joint hardware are commonly confused with Fusion when a device is placed, but unless the intent and result is immobilization of the joint, those belong to a different root operation.
RepairRepair is sometimes miscoded in place of Fusion when a surgeon revises a previously fused joint without altering its immobilized state, since Repair applies only when the objective is not to change how the joint moves.