M51.16 – Intervertebral disc disorders with radiculopathy

Learn about M51.16, a diagnosis code for intervertebral disc disorders with radiculopathy in the lumbar region, including clinical information and related ICD-10 codes.

By Ericka Pingol on Aug 8, 2025.

Fact Checked by Gale Alagos.

Use Code

M51.16 diagnosis code: Intervertebral disc disorders with radiculopathy, lumbar region

Intervertebral disc disorders with radiculopathy in the lumbar region (M51.16) refer to conditions affecting the lumbosacral spine, often causing severe pain, nerve compression, and mobility issues. These disorders can result from lumbar disc herniation, injury, or degenerative changes, leading to symptoms such as numbness, weakness, or radiating pain in the lower extremities.

The ICD-10-CM code M51.16 is specifically used for lumbar region disc disorders with radiculopathy, distinguishing it from other spinal conditions. Healthcare providers must follow ICD-10-CM guidelines for accurate diagnosis and appropriate treatment planning.

Proper diagnosis and treatment of M51.16 intervertebral disc disorders help prevent further complications and improve patient outcomes. Healthcare providers should document the condition thoroughly and adhere to ICD-10-CM guidelines for precise coding and billing.

Is M51.16 billable?

As a healthcare provider, it is essential to verify the billability of specific diagnosis codes to ensure proper reimbursement and prevent claim denials. The ICD-10 code M51.16 is confirmed to be billable, representing intervertebral disc disorders with radiculopathy in the lumbar region.

Clinical information

M51.16 encompasses lumbosacral intervertebral disc disorder with radiculopathy, which affects the lumbar spine region. This disorder involves the degeneration, displacement, or breakdown of the intervertebral discs, which play a crucial role in spinal flexibility and shock absorption.
Intervertebral disc disorders involve the breakdown, displacement, or degeneration of the discs between the vertebrae, which are crucial for maintaining spinal flexibility and shock absorption.
Radiculopathy is a condition characterized by the compression, irritation, or inflammation of the nerve roots that emerge from the spinal cord, leading to radiating pain, numbness, and weakness in the areas served by the affected nerves.
Common causes of M51.16 include herniated or bulging discs, degenerative disc disease, and spinal stenosis, all of which can result in the compression or irritation of spinal nerve roots.
Symptoms of M51.16 may present as lower back pain, buttock pain, and leg pain that often worsens with specific activities or positions. Additional symptoms include muscle weakness, numbness, and tingling sensations in the affected areas.
Diagnosis typically involves a thorough physical examination, assessment of medical history, and imaging studies such as MRI, CT scan, or X-rays to visualize the spine and identify the source of nerve root compression or irritation.
Treatment options for M51.16 aim to alleviate pain, improve mobility, and address the condition's underlying cause. These options can range from conservative measures such as physical therapy, pain management, and corticosteroid injections to more invasive interventions like surgery if conservative treatments prove ineffective.

Synonym includes:

Lumbar disc herniation with radiculopathy
Lumbosacral disc displacement
Degenerative lumbar disc disease with nerve involvement
Lumbar radiculopathy due to disc disorder
Intervertebral disc disorder of the lumbar spine

Other ICD-10 codes commonly used for the lumbar region

M51.17: Intervertebral disc disorders with radiculopathy, lumbosacral region
M54.30: Sciatica, unspecified side
M54.41: Lumbago with sciatica, right side
M54.42: Lumbago with sciatica, left side
M54.50: Low back pain, unspecified
M48.06: Spinal stenosis in the lumbar region
M47.817: Spondylosis without myelopathy or radiculopathy, lumbosacral region

Commonly asked questions

Intervertebral disc disorder with radiculopathy refers to a condition where the discs between the vertebrae in the spine degenerate, herniate, or shift, leading to nerve root compression. This can cause pain, numbness, tingling, and weakness in the areas served by the affected nerves, often radiating down the legs.

M51.16 lumbar radiculopathy specifically refers to nerve root irritation or compression in the lumbar region, usually due to conditions like a herniated disc, degenerative disc disease, or spinal stenosis. This can result in lower back pain, leg pain, and muscle weakness, often worsening with movement.

Lumbar radiculopathy can be serious, especially if it leads to severe nerve damage, loss of motor function, or bowel/bladder dysfunction. While many cases improve with conservative treatments, persistent or worsening symptoms may require surgical intervention to prevent long-term complications.

EHR and practice management software

Get started for free

*No credit card required

Start for free

Free

$0/usd

Unlimited clients

Telehealth

1GB of storage

Client portal text

Automated billing and online payments