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ICD-10 Guide
ICD-10 CodesM61.27

M61.27

Billable

Paralytic calcification and ossification of muscle, ankle and foot

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

Code Description

ICD-10 M61.27 is a billable code used to indicate a diagnosis of paralytic calcification and ossification of muscle, ankle and foot.

Key Diagnostic Point:

Paralytic calcification and ossification of muscle, particularly in the ankle and foot, is a condition characterized by the abnormal deposition of calcium salts in muscle tissue, leading to stiffness, pain, and impaired mobility. This condition often arises as a complication of prolonged immobilization or paralysis, where muscle atrophy occurs, and the normal regenerative processes are disrupted. The calcification can result from various underlying neuromuscular disorders, including myositis, which is inflammation of the muscle tissue, and can be associated with muscle weakness. Patients may present with symptoms such as localized pain, swelling, and reduced range of motion in the affected areas. Diagnosis typically involves imaging studies, such as X-rays or MRI, to visualize the calcified areas, alongside a thorough clinical evaluation to rule out other causes of muscle stiffness and pain. Treatment may include physical therapy, pain management, and in some cases, surgical intervention to remove calcified deposits. Understanding the underlying neuromuscular conditions contributing to this disorder is crucial for effective management and rehabilitation.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of muscle pathology and neuromuscular conditions
  • Differentiation from other musculoskeletal disorders
  • Need for precise documentation of symptoms and imaging findings
  • Potential for co-morbid conditions affecting coding

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to link symptoms to the diagnosis
  • Misinterpretation of imaging results
  • Inconsistent coding of related neuromuscular conditions

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed notes on physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients with immobilization due to fractures or surgeries leading to calcification.

Billing Considerations

Ensure clear documentation of the relationship between immobilization and calcification.

Neurology

Documentation Requirements

Comprehensive neurological assessments and history of neuromuscular disorders.

Common Clinical Scenarios

Patients with myositis or other neuromuscular disorders presenting with muscle calcification.

Billing Considerations

Document the underlying neuromuscular condition and its impact on muscle health.

Coding Guidelines

Inclusion Criteria

Use M61.27 When
  • According to ICD
  • 10 coding guidelines, M61
  • 27 should be used when there is clear documentation of calcification and ossification specifically in the ankle and foot muscles
  • It is essential to include details about the underlying causes, such as paralysis or myositis, to support the diagnosis

Exclusion Criteria

Do NOT use M61.27 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

73030CPT Code

Radiologic examination, ankle

Clinical Scenario

Used when imaging is required to assess calcification in the ankle.

Documentation Requirements

Include details of the patient's symptoms and the reason for imaging.

Specialty Considerations

Orthopedic specialists should document the clinical rationale for imaging.

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 M61.27, improving the accuracy of data collection and reimbursement processes. It emphasizes the need for detailed documentation to support the diagnosis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like M61.27, improving the accuracy of data collection and reimbursement processes. It emphasizes the need for detailed documentation to support the diagnosis.

Reimbursement & Billing Impact

reimbursement processes. It emphasizes the need for detailed documentation to support the diagnosis.

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 causes of paralytic calcification?

Common causes include prolonged immobilization, neuromuscular disorders such as myositis, and conditions leading to muscle atrophy.