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ICD-10 Guide
ICD-10 CodesM84.6

M84.6

Billable

Pathological fracture in other disease

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

Code Description

ICD-10 M84.6 is a billable code used to indicate a diagnosis of pathological fracture in other disease.

Key Diagnostic Point:

Pathological fractures occur when bones break due to underlying diseases rather than from trauma. These fractures are often associated with conditions that affect bone density and metabolism, such as osteoporosis, osteogenesis imperfecta, Paget's disease, and malignancies that metastasize to bone. In patients with osteoporosis, for instance, the bones become porous and brittle, leading to an increased risk of fractures even with minimal or no trauma. The pathophysiology involves a disruption in the balance between bone resorption and formation, resulting in decreased bone mass and structural integrity. Diagnosis typically involves imaging studies, such as X-rays or bone density scans, to assess the extent of bone loss and identify fractures. Management may include pharmacological treatments to improve bone density, lifestyle modifications, and in some cases, surgical intervention to stabilize fractures. Accurate coding of pathological fractures is crucial for appropriate treatment planning and reimbursement, as it reflects the complexity of the underlying disease processes affecting bone health.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying diseases that can lead to pathological fractures.
  • Need for precise documentation of the underlying condition.
  • Differentiation from traumatic fractures.
  • Potential for multiple co-existing conditions affecting bone health.

Audit Risk Factors

  • Inadequate documentation of the underlying disease.
  • Failure to specify the type of fracture.
  • Misclassification of traumatic versus pathological fractures.
  • Lack of supporting imaging studies in the medical record.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed notes on fracture type, location, and underlying conditions.

Common Clinical Scenarios

Patients presenting with fractures after minimal trauma, often with a history of osteoporosis.

Billing Considerations

Ensure clear documentation of the patient's bone health status and any treatments for underlying conditions.

Endocrinology

Documentation Requirements

Comprehensive assessment of metabolic bone diseases and their management.

Common Clinical Scenarios

Patients with osteoporosis or other metabolic bone disorders experiencing fractures.

Billing Considerations

Document any hormonal treatments or interventions that may affect bone density.

Coding Guidelines

Inclusion Criteria

Use M84.6 When
  • Follow official ICD
  • 10 coding guidelines, ensuring that the underlying disease is documented clearly
  • Include any relevant imaging studies and treatment plans in the medical record

Exclusion Criteria

Do NOT use M84.6 When
  • Exclude traumatic fractures unless they are clearly documented as pathological

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

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

Clinical Scenario

Used when a patient with a pathological fracture requires joint aspiration.

Documentation Requirements

Document the reason for the procedure and any imaging guidance used.

Specialty Considerations

Orthopedic specialists should ensure clear documentation of the fracture type and underlying disease.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of pathological fractures, improving the ability to capture the complexity of these cases. This specificity aids in better understanding patient populations and improving treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of pathological fractures, improving the ability to capture the complexity of these cases. This specificity aids in better understanding patient populations and improving treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of pathological fractures, improving the ability to capture the complexity of these cases. This specificity aids in better understanding patient populations and improving 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 difference between a pathological fracture and a traumatic fracture?

A pathological fracture occurs due to underlying disease processes that weaken the bone, while a traumatic fracture results from an external force or injury.