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ICD-10 Guide
ICD-10 CodesM84.63

M84.63

Billable

Pathological fracture in other disease, ulna and radius

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

Code Description

ICD-10 M84.63 is a billable code used to indicate a diagnosis of pathological fracture in other disease, ulna and radius.

Key Diagnostic Point:

Pathological fractures occur when bones break due to underlying diseases rather than from trauma. In the case of M84.63, the fractures specifically involve the ulna and radius, which are the two long bones in the forearm. These fractures are often associated with conditions that affect bone density and metabolism, such as osteoporosis, osteogenesis imperfecta, or metastatic bone disease. Osteoporosis, a common condition particularly in postmenopausal women, leads to decreased bone density and increased fragility, making bones more susceptible to fractures even with minimal or no trauma. Other diseases that may contribute to pathological fractures include chronic kidney disease, hyperparathyroidism, and certain malignancies that metastasize to bone. The clinical presentation may vary, but patients often report pain, swelling, and decreased function in the affected limb. Diagnosis typically involves imaging studies such as X-rays or CT scans, and management may include pain control, stabilization of the fracture, and treatment of the underlying disease to improve bone health.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of underlying diseases affecting bone health.
  • Differentiation from traumatic fractures can be challenging.
  • Documentation must specify the underlying condition causing the fracture.
  • Potential for multiple co-existing conditions complicating coding.

Audit Risk Factors

  • Inadequate documentation of the underlying disease.
  • Failure to specify the location of the fracture accurately.
  • Misclassification of the fracture type (pathological vs. traumatic).
  • Lack of supporting imaging studies in the medical record.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with fractures after minimal trauma, particularly in older adults.

Billing Considerations

Ensure that the underlying disease is clearly documented to support the use of M84.63.

Endocrinology

Documentation Requirements

Documentation of bone density tests and management of osteoporosis or other metabolic bone diseases.

Common Clinical Scenarios

Patients with osteoporosis presenting with fractures or those undergoing treatment for metabolic bone disorders.

Billing Considerations

Linking the fracture to the metabolic disorder is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use M84.63 When
  • According to ICD
  • 10 guidelines, M84
  • 63 should be used when a fracture is due to an underlying disease process
  • Coders must ensure that the medical record supports the diagnosis of a pathological fracture and includes details about the underlying condition

Exclusion Criteria

Do NOT use M84.63 When
  • Exclusion criteria include fractures resulting from trauma or those not linked to a specific disease

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 the joint involved.

Specialty Considerations

Orthopedic specialists should ensure that the fracture is documented as pathological.

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. M84.63 provides a clear distinction for fractures due to underlying diseases, which was less defined in ICD-9.

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. M84.63 provides a clear distinction for fractures due to underlying diseases, which was less defined in ICD-9.

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. M84.63 provides a clear distinction for fractures due to underlying diseases, which was less defined in ICD-9.

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 an underlying disease that weakens the bone, while a traumatic fracture results from an external force or injury.