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ICD-10 Guide
ICD-10 CodesM61.57

M61.57

Billable

Other ossification of muscle, ankle and foot

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

Code Description

ICD-10 M61.57 is a billable code used to indicate a diagnosis of other ossification of muscle, ankle and foot.

Key Diagnostic Point:

M61.57 refers to a condition characterized by abnormal ossification or calcification of muscle tissue specifically in the ankle and foot regions. This condition can arise from various underlying causes, including trauma, chronic inflammation, or certain myopathies. Patients may present with muscle stiffness, pain, and reduced range of motion in the affected areas. The ossification can lead to significant functional impairment, affecting mobility and quality of life. Diagnosis typically involves imaging studies such as X-rays or MRI to visualize the ossified areas and differentiate them from other conditions like myositis or muscle tears. Treatment may include physical therapy, pain management, and in some cases, surgical intervention to remove the ossified tissue. Understanding the etiology and clinical presentation is crucial for accurate coding and management of this condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to ossification
  • Differentiation from other muscle disorders like myositis
  • Need for precise documentation of symptoms and imaging findings
  • Potential for co-existing conditions affecting the ankle and foot

Audit Risk Factors

  • Inadequate documentation of the clinical rationale for ossification
  • Failure to specify the affected muscle groups
  • Lack of imaging reports to support the diagnosis
  • Misclassification of the condition as a different muscle disorder

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed imaging reports, surgical notes if applicable, and comprehensive patient history.

Common Clinical Scenarios

Patients presenting with chronic pain and stiffness in the ankle and foot, post-traumatic ossification.

Billing Considerations

Ensure clear documentation of the extent of ossification and its impact on mobility.

Rheumatology

Documentation Requirements

Thorough assessment of inflammatory markers, patient history of autoimmune conditions, and response to treatment.

Common Clinical Scenarios

Patients with inflammatory myopathies presenting with ossification.

Billing Considerations

Document any systemic symptoms that may indicate an underlying rheumatologic condition.

Coding Guidelines

Inclusion Criteria

Use M61.57 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the diagnosis is supported by clinical documentation and imaging studies
  • Include any relevant co
  • existing conditions that may affect treatment and management

Exclusion Criteria

Do NOT use M61.57 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 treating associated joint pain due to muscle ossification.

Documentation Requirements

Document the indication for the procedure and any imaging findings.

Specialty Considerations

Orthopedic specialists should ensure that the procedure is linked to the diagnosis of ossification.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like M61.57, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like M61.57, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like M61.57, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

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 symptoms associated with M61.57?

Common symptoms include localized pain, stiffness, and reduced range of motion in the affected ankle and foot muscles. Patients may also experience muscle weakness and functional limitations.