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ICD-10 Guide
ICD-10 CodesM46.41

M46.41

Billable

Discitis, unspecified, occipito-atlanto-axial region

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

Code Description

ICD-10 M46.41 is a billable code used to indicate a diagnosis of discitis, unspecified, occipito-atlanto-axial region.

Key Diagnostic Point:

Discitis is an inflammatory condition affecting the intervertebral discs, characterized by infection or inflammation that can lead to severe pain and neurological deficits. In the occipito-atlanto-axial region, which includes the junction between the skull and the first two cervical vertebrae, discitis can result from various etiologies, including bacterial infections, autoimmune disorders, or post-surgical complications. Symptoms often include neck pain, stiffness, and potential neurological symptoms due to spinal cord compression. Diagnosis typically involves imaging studies such as MRI or CT scans, alongside laboratory tests to identify infectious agents. Treatment may include antibiotics, anti-inflammatory medications, and in severe cases, surgical intervention to relieve pressure on the spinal cord or stabilize the spine. The unspecified nature of this code indicates that the specific cause of the discitis has not been determined, which can complicate treatment and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Unspecified nature of the condition complicates treatment planning.
  • Differential diagnosis includes multiple inflammatory and infectious conditions.
  • Requires comprehensive documentation to support the diagnosis.
  • Potential overlap with other spinal conditions like spondylopathies and ankylosing spondylitis.

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings.
  • Failure to specify the underlying cause of discitis.
  • Lack of imaging or lab results to support the diagnosis.
  • Misuse of unspecified codes when more specific codes are available.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with neck pain, stiffness, and neurological symptoms following trauma or infection.

Billing Considerations

Orthopedic specialists must ensure that all relevant imaging studies are documented to support the diagnosis of discitis.

Infectious Disease

Documentation Requirements

Comprehensive lab results, including cultures and sensitivity tests, along with clinical notes on the patient's response to treatment.

Common Clinical Scenarios

Patients with suspected infectious discitis presenting with fever, localized pain, and systemic symptoms.

Billing Considerations

Infectious disease specialists should document the specific pathogens identified to justify the use of this code.

Coding Guidelines

Inclusion Criteria

Use M46.41 When
  • According to the official coding guidelines, M46
  • 41 should be used when the specific cause of discitis is not documented
  • Coders should ensure that the documentation supports the diagnosis and that all relevant clinical information is included

Exclusion Criteria

Do NOT use M46.41 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

73030CPT Code

CT scan of the cervical spine

Clinical Scenario

Used to evaluate suspected discitis in the occipito-atlanto-axial region.

Documentation Requirements

Radiology report must be included in the patient's medical record.

Specialty Considerations

Orthopedic and neurosurgical specialists should ensure imaging is clearly linked to the diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of discitis, improving the ability to track and manage this condition. M46.41 provides a clear designation for unspecified cases, which can help in understanding the epidemiology and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of discitis, improving the ability to track and manage this condition. M46.41 provides a clear designation for unspecified cases, which can help in understanding the epidemiology and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of discitis, improving the ability to track and manage this condition. M46.41 provides a clear designation for unspecified cases, which can help in understanding the epidemiology and 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 are the common causes of discitis?

Common causes of discitis include bacterial infections, autoimmune disorders, and post-surgical complications. In some cases, the cause may remain unspecified despite thorough investigation.