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ICD-10 Guide
ICD-10 CodesM43.26

M43.26

Billable

Fusion of spine, lumbar region

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/17/2025

Code Description

ICD-10 M43.26 is a billable code used to indicate a diagnosis of fusion of spine, lumbar region.

Key Diagnostic Point:

Fusion of the lumbar spine is a surgical procedure aimed at joining two or more vertebrae in the lower back to stabilize the spine, alleviate pain, and correct deformities. This procedure is often indicated for conditions such as degenerative disc disease, spondylolisthesis, spinal stenosis, and severe cases of scoliosis or kyphosis. The fusion process involves the use of bone grafts, which may be harvested from the patient or obtained from a donor, and the application of hardware such as screws and rods to maintain alignment during the healing process. The goal is to promote bone growth between the vertebrae, effectively creating a single solid bone structure. Spinal fusion can significantly improve the quality of life for patients suffering from debilitating back pain and can restore function in cases of spinal deformities. However, it is essential to consider the risks, including infection, nerve damage, and the possibility of adjacent segment disease, where degeneration occurs in the vertebrae adjacent to the fused segment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in surgical techniques and approaches (anterior vs. posterior fusion)
  • Need for precise documentation of the specific vertebrae involved
  • Potential for co-existing conditions that may complicate coding
  • Variations in payer policies regarding coverage for fusion procedures

Audit Risk Factors

  • Inadequate documentation of the surgical approach
  • Failure to specify the number of levels fused
  • Lack of clarity on the indication for surgery
  • Inconsistent coding of co-existing conditions

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed operative reports, imaging studies, and pre-operative evaluations must be documented to support the necessity of the fusion.

Common Clinical Scenarios

Patients with chronic lower back pain due to degenerative disc disease or spondylolisthesis requiring surgical intervention.

Billing Considerations

Documentation must clearly outline the surgical technique used and any complications encountered during the procedure.

Neurosurgery

Documentation Requirements

Comprehensive neurological assessments and imaging results are crucial to justify the need for fusion surgery.

Common Clinical Scenarios

Patients with neurological deficits due to spinal stenosis or herniated discs requiring decompression and stabilization.

Billing Considerations

Ensure that the documentation reflects the neurological status of the patient pre- and post-operatively.

Coding Guidelines

Inclusion Criteria

Use M43.26 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when a surgical fusion of the lumbar spine has been performed
  • surgical interventions or conditions that do not involve fusion

Exclusion Criteria

Do NOT use M43.26 When
  • Exclude codes for non

Related ICD-10 Codes

Related CPT Codes

22630CPT Code

Lumbar spinal fusion, posterior approach

Clinical Scenario

Used when performing a posterior lumbar fusion for spondylolisthesis.

Documentation Requirements

Operative report detailing the procedure, levels involved, and any hardware used.

Specialty Considerations

Orthopedic surgeons must document the rationale for the surgical approach chosen.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of spinal conditions, improving the accuracy of data collection and reimbursement processes. M43.26 provides a clear designation for lumbar fusion, facilitating better tracking of surgical outcomes and resource utilization.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of spinal conditions, improving the accuracy of data collection and reimbursement processes. M43.26 provides a clear designation for lumbar fusion, facilitating better tracking of surgical outcomes and resource utilization.

Reimbursement & Billing Impact

reimbursement processes. M43.26 provides a clear designation for lumbar fusion, facilitating better tracking of surgical outcomes and resource utilization.

Resources

Clinical References

  • •
    American Academy of Orthopaedic Surgeons (AAOS)
  • •
    Centers for Medicare & Medicaid Services (CMS)

Coding & Billing References

  • •
    American Academy of Orthopaedic Surgeons (AAOS)
  • •
    Centers for Medicare & Medicaid Services (CMS)

Frequently Asked Questions

What conditions typically require lumbar spinal fusion?

Conditions such as degenerative disc disease, spondylolisthesis, severe scoliosis, and spinal stenosis often necessitate lumbar spinal fusion to stabilize the spine and alleviate pain.

How do I document the necessity for lumbar fusion?

Documentation should include detailed clinical evaluations, imaging results, and a clear explanation of conservative treatments attempted prior to surgery.