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ICD-10 Guide
ICD-10 CodesM84.57

M84.57

Billable

Pathological fracture in neoplastic disease, ankle and foot

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

Code Description

ICD-10 M84.57 is a billable code used to indicate a diagnosis of pathological fracture in neoplastic disease, ankle and foot.

Key Diagnostic Point:

Pathological fractures occur when bones weaken due to underlying conditions, such as neoplastic diseases, which include cancers that affect bone integrity. In the case of M84.57, the focus is on fractures occurring in the ankle and foot regions. Neoplastic diseases can lead to bone metastases, which compromise bone density and structural integrity, making them more susceptible to fractures even with minimal trauma. Patients with conditions such as multiple myeloma, metastatic breast or prostate cancer, or other malignancies may present with these fractures. The clinical presentation often includes localized pain, swelling, and difficulty bearing weight. Diagnosis typically involves imaging studies, such as X-rays or MRIs, to assess the extent of the fracture and the underlying neoplastic process. Management may require orthopedic intervention, pain management, and treatment of the underlying malignancy. Understanding the relationship between bone metabolism, neoplastic disease, and fracture risk is crucial for effective treatment and coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of neoplastic diseases and their impact on bone health.
  • Differentiation from other types of fractures, such as traumatic fractures.
  • Need for precise documentation of the underlying neoplastic condition.
  • Potential for multiple codes related to the primary cancer diagnosis.

Audit Risk Factors

  • Inadequate documentation of the neoplastic disease.
  • Failure to specify the location of the fracture accurately.
  • Misclassification of the fracture type (pathological vs. traumatic).
  • Lack of correlation between the fracture and the underlying condition in the medical record.

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed history of the neoplastic disease, treatment history, and current status.

Common Clinical Scenarios

Patients with metastatic cancer presenting with bone pain and fractures.

Billing Considerations

Ensure that the relationship between the cancer and the fracture is clearly documented.

Orthopedics

Documentation Requirements

Comprehensive assessment of the fracture, including imaging results and treatment plans.

Common Clinical Scenarios

Management of fractures in patients with known malignancies.

Billing Considerations

Document any surgical interventions and the rationale for treatment choices.

Coding Guidelines

Inclusion Criteria

Use M84.57 When
  • According to ICD
  • 10 guidelines, M84
  • 57 should be used when a pathological fracture is directly linked to a neoplastic disease
  • Coders must ensure that the underlying cancer diagnosis is also documented and coded appropriately

Exclusion Criteria

Do NOT use M84.57 When
  • Exclusion criteria include fractures not related to neoplastic 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 managing joint effusions in patients with neoplastic disease.

Documentation Requirements

Document the reason for the procedure and the patient's cancer history.

Specialty Considerations

Oncology specialists should note the relationship between joint issues and underlying malignancy.

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 related to neoplastic diseases, improving the accuracy of patient records and treatment plans.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of pathological fractures related to neoplastic diseases, improving the accuracy of patient records and treatment plans.

Reimbursement & Billing Impact

reimbursement.

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 weakened bone structure from underlying conditions, such as neoplastic diseases, while a traumatic fracture results from an external force or injury.