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v1.0.0
ICD-10 Guide
ICD-10 CodesM46.0

M46.0

Billable

Spinal enthesopathy

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

Code Description

ICD-10 M46.0 is a billable code used to indicate a diagnosis of spinal enthesopathy.

Key Diagnostic Point:

Spinal enthesopathy refers to a condition characterized by inflammation and degeneration of the entheses, the sites where tendons and ligaments attach to the spine. This condition is often associated with various spondylopathies, including ankylosing spondylitis, which is a type of inflammatory arthritis that primarily affects the spine and can lead to severe, chronic pain and discomfort. Spinal enthesopathy can also be linked to spinal stenosis, a narrowing of the spinal canal that can compress the spinal cord and nerves, leading to pain, numbness, and weakness. Inflammatory spine conditions, such as psoriatic arthritis and reactive arthritis, may also present with enthesopathy, complicating the clinical picture. Diagnosis typically involves a combination of clinical evaluation, imaging studies, and laboratory tests to assess inflammation and rule out other conditions. Treatment may include anti-inflammatory medications, physical therapy, and in some cases, surgical intervention. Accurate coding is essential for proper reimbursement and to reflect the complexity of the patient's condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between various types of spondylopathies
  • Understanding the overlap with inflammatory spine conditions
  • Need for precise documentation of symptoms and imaging findings
  • Potential for co-morbid conditions that may complicate coding

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to specify the type of enthesopathy
  • Misclassification of related inflammatory conditions
  • Lack of imaging studies to support diagnosis

Specialty Focus

Medical Specialties

Rheumatology

Documentation Requirements

Detailed history of symptoms, physical examination findings, and imaging results.

Common Clinical Scenarios

Patients presenting with chronic back pain, stiffness, and reduced mobility.

Billing Considerations

Documentation must clearly differentiate between enthesopathy and other forms of spondylopathy.

Orthopedics

Documentation Requirements

Surgical notes, imaging studies, and pre-operative evaluations.

Common Clinical Scenarios

Patients requiring surgical intervention for spinal stenosis or severe enthesopathy.

Billing Considerations

Accurate coding of co-existing conditions is crucial for surgical cases.

Coding Guidelines

Inclusion Criteria

Use M46.0 When
  • According to ICD
  • 10 coding guidelines, M46
  • 0 should be used when the clinical documentation supports a diagnosis of spinal enthesopathy
  • It is important to ensure that the condition is not a manifestation of another underlying disease

Exclusion Criteria

Do NOT use M46.0 When
  • Exclusion criteria include conditions that are not primarily inflammatory or degenerative

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration and/or injection into a major joint or bursa

Clinical Scenario

Used when injecting corticosteroids into the spine for enthesopathy treatment.

Documentation Requirements

Document the indication for injection and the specific site.

Specialty Considerations

Rheumatologists often perform these procedures in an outpatient setting.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of spinal enthesopathy, improving the accuracy of patient records and facilitating better tracking of treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of spinal enthesopathy, improving the accuracy of patient records and facilitating better tracking of treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of spinal enthesopathy, improving the accuracy of patient records and facilitating better tracking of treatment outcomes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the primary cause of spinal enthesopathy?

Spinal enthesopathy is primarily caused by inflammatory conditions such as ankylosing spondylitis, psoriatic arthritis, and other spondylopathies that lead to inflammation at the entheses.