M43.06 – Spondylolysis, lumbar region

Discover the clinical description, information, billing, and more about the ICD-10-CM code M43.06, which denotes spondylolysis in the lumbar region.

By Patricia Buenaventura on Jun 11, 2025.

Fact Checked by Ericka Pingol.

Use Code
M43.06 – Spondylolysis, lumbar region

M43.06 diagnosis code: Spondylolysis, lumbar region

  • M43.06 is a billable ICD-10-CM code for healthcare diagnosis reimbursement of spondylolysis, lumbar region.
  • The ICD-10-CM code M43.06 is used to diagnose spondylolysis in the lumbar region in America. The code for the corresponding diagnosis may differ internationally. 
  • Its umbrella category is “Diseases of the musculoskeletal system and connective tissue.” More specifically, it falls under “Other deforming dorsopathies.”

Is M43.06 billable? 

Yes. M43.06 is billable for insurance reimbursement purposes.

Clinical information

  • Spondylolysis is a small crack or fracture between two vertebrae in the spine.
  • Causes of spondylolysis include overuse, growth spurt, and genetics.
  • Although anyone can experience spondylolysis, those who have a higher risk are athletes who play contact sports, kids and teens with bodies that are still changing and growing, and, according to research, people of Indigenous Alaskan descent.
  • The most common symptom of spondylolysis is pain in the lower back.
  • If left untreated, it can lead to spondylolisthesis, in addition to reduced mobility in the patient.
  • Diagnosis of lumbar spondylolysis involves a physical examination, a list of symptoms, and physical tests such as X-rays, MRI, and CT scans. 
  • Practitioners may treat lumbar spondylolysis with rest,  over-the-counter medications, corticosteroids, physical therapy, and bracing. Should the patient still feel the symptoms, shots and surgery are the other treatment options.

Synonyms include

  • Acquired lumbar spondylosis
  • Closed fracture lumbar vertebra, spondylosis
  • Open fracture lumbar vertebra, spondylosis
  • Acquired lumbar spondylolysis
  • Lumbar spondylolysis
  • Spondylolysis, lumbar spine
  • Spondylolysis, lumbosacral region

Other ICD-10 codes related to spondylolysis

  • M43.00: spondylolysis, site unspecified
  • M43.01: spondylolysis, occipito-atlanto-axial region
  • M43.02: spondylosis, cervical region
  • M43.03: spondylosis, cervicothoracic region
  • M43.04: spondylosis, thoracic region
  • M43.05: spondylosis, thoracolumbar region
  • M43.07: spondylosis, lumbosacular region
  • M43.08: spondylosis, sacral and sacrococcygeal region
  • M43.09: spondylosis, multiple sites in the spine
  • Q76.2: Congenital spondylolisthesis (congenital spondylolysis)

Frequently asked questions

When to use a diagnosis code M43.06?

You use M43.06 only when the codes under “spondylolysis” aren’t apt.

Is the M43.06 diagnosis billable?

Yes, M43.06 is a billable diagnosis code that can be used for reimbursements.

What does diagnosis code M43.06 mean?

The diagnosis code M43.06 refers to spondylolysis in the lumbar region.

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