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v1.0.0
ICD-10 Guide
ICD-10 CodesM84.446

M84.446

Billable

Pathological fracture, unspecified finger(s)

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

Code Description

ICD-10 M84.446 is a billable code used to indicate a diagnosis of pathological fracture, unspecified finger(s).

Key Diagnostic Point:

A pathological fracture of the finger(s) refers to a break in the bone that occurs due to an underlying disease process rather than from a traumatic injury. This type of fracture is often associated with conditions that weaken bone density, such as osteoporosis, osteogenesis imperfecta, or metastatic cancer. In patients with osteoporosis, the bones become porous and brittle, making them more susceptible to fractures even with minimal or no trauma. The fingers, being small and often subjected to repetitive stress or minor trauma, can be particularly vulnerable to such fractures. Diagnosis typically involves imaging studies, such as X-rays, to confirm the fracture and assess the underlying bone condition. Treatment may include immobilization, pain management, and addressing the underlying bone density disorder through medications or lifestyle changes. Accurate coding of pathological fractures is crucial for proper treatment planning and reimbursement, as it reflects the complexity of the patient's condition and the need for comprehensive management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in underlying conditions leading to fractures
  • Need for precise documentation of fracture type and location
  • Differentiation from traumatic fractures
  • Potential for multiple underlying diagnoses affecting coding

Audit Risk Factors

  • Inadequate documentation of underlying conditions
  • Failure to specify the location of the fracture
  • Misclassification as a traumatic fracture
  • Lack of supporting imaging documentation

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, particularly in older adults.

Billing Considerations

Ensure that the underlying bone density disorder is documented to support the diagnosis.

Endocrinology

Documentation Requirements

Documentation of bone density tests and metabolic bone disease evaluations.

Common Clinical Scenarios

Patients with osteoporosis or other metabolic bone diseases experiencing fractures.

Billing Considerations

Documenting the patient's history of bone density issues is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use M84.446 When
  • According to ICD
  • 10 coding guidelines, M84
  • 446 should be used when the fracture is confirmed but the specific finger(s) involved are not specified
  • Coders should ensure that the documentation supports the diagnosis of a pathological fracture and that any underlying conditions are noted

Exclusion Criteria

Do NOT use M84.446 When
No specific exclusions found.

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 findings.

Specialty Considerations

Orthopedic specialists should ensure that the procedure is justified based on the patient's condition.

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 and ensuring appropriate reimbursement for the management of underlying conditions.

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 and ensuring appropriate reimbursement for the management of underlying conditions.

Reimbursement & Billing Impact

reimbursement for the management of underlying conditions.

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.