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v1.0.0
ICD-10 Guide
ICD-10 CodesM46.93

M46.93

Billable

Unspecified inflammatory spondylopathy, cervicothoracic region

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

Code Description

ICD-10 M46.93 is a billable code used to indicate a diagnosis of unspecified inflammatory spondylopathy, cervicothoracic region.

Key Diagnostic Point:

Unspecified inflammatory spondylopathy in the cervicothoracic region refers to a condition characterized by inflammation of the spine, particularly affecting the cervical and thoracic vertebrae. This condition can manifest as pain, stiffness, and reduced mobility in the neck and upper back. Inflammatory spondylopathies, including ankylosing spondylitis, are autoimmune disorders that primarily affect the spine and the sacroiliac joints, leading to chronic inflammation. Symptoms may include chronic back pain, which improves with exercise but not with rest, and may be accompanied by systemic symptoms such as fatigue and weight loss. Diagnosis often involves imaging studies, such as X-rays or MRI, to assess for inflammation and structural changes in the spine. Treatment typically includes anti-inflammatory medications, physical therapy, and in some cases, disease-modifying antirheumatic drugs (DMARDs). The unspecified nature of this code indicates that the specific type of inflammatory spondylopathy has not been clearly defined, necessitating careful documentation to support the diagnosis.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for comprehensive documentation to specify the type of spondylopathy
  • Differentiation from other spinal conditions such as spinal stenosis
  • Potential overlap with other inflammatory conditions

Audit Risk Factors

  • Insufficient documentation to support the diagnosis
  • Lack of imaging studies to confirm inflammatory changes
  • Inconsistent use of terminology in clinical notes
  • Failure to differentiate from other spondylopathies

Specialty Focus

Medical Specialties

Rheumatology

Documentation Requirements

Detailed clinical history, physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with chronic back pain, stiffness, and a family history of inflammatory arthritis.

Billing Considerations

Ensure clear documentation of symptoms and response to treatment to support the diagnosis.

Orthopedics

Documentation Requirements

Comprehensive assessment of spinal alignment, mobility, and any surgical interventions if applicable.

Common Clinical Scenarios

Patients with severe pain and functional limitations requiring surgical evaluation.

Billing Considerations

Document any surgical history or interventions that may impact the inflammatory condition.

Coding Guidelines

Inclusion Criteria

Use M46.93 When
  • Follow the official ICD
  • CM coding guidelines for reporting unspecified conditions
  • Ensure that documentation supports the diagnosis of inflammatory spondylopathy and that all relevant clinical information is included

Exclusion Criteria

Do NOT use M46.93 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

72148CPT Code

MRI of the cervical spine

Clinical Scenario

Used to evaluate inflammatory changes in the cervicothoracic region.

Documentation Requirements

Document the clinical rationale for the MRI and any prior treatments.

Specialty Considerations

Rheumatologists may order this for diagnosis, while orthopedists may use it for surgical planning.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of inflammatory spondylopathies, improving the accuracy of data collection and reimbursement processes. M46.93 serves as a catch-all for unspecified cases, highlighting the need for thorough documentation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of inflammatory spondylopathies, improving the accuracy of data collection and reimbursement processes. M46.93 serves as a catch-all for unspecified cases, highlighting the need for thorough documentation.

Reimbursement & Billing Impact

reimbursement processes. M46.93 serves as a catch-all for unspecified cases, highlighting the need for thorough documentation.

Resources

Clinical References

  • •
    American College of Rheumatology

Coding & Billing References

  • •
    American College of Rheumatology

Frequently Asked Questions

What is the difference between M46.93 and M45?

M46.93 is used for unspecified inflammatory spondylopathy, while M45 is specifically for ankylosing spondylitis. Accurate documentation is essential to determine the correct code.