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ICD-10 Guide
ICD-10 CodesM61.269

M61.269

Billable

Paralytic calcification and ossification of muscle, unspecified lower leg

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

Code Description

ICD-10 M61.269 is a billable code used to indicate a diagnosis of paralytic calcification and ossification of muscle, unspecified lower leg.

Key Diagnostic Point:

Paralytic calcification and ossification of muscle in the lower leg is a condition characterized by abnormal deposition of calcium salts and bone-like tissue in muscle fibers, typically resulting from prolonged immobilization or denervation. This condition can lead to muscle stiffness, weakness, and impaired mobility. It is often seen in patients with neuromuscular disorders, such as myositis or after significant trauma, where muscle function is compromised. The calcification process can be a response to muscle injury or inflammation, leading to a cascade of pathological changes. Clinically, patients may present with localized pain, swelling, and reduced range of motion in the affected area. Diagnosis is typically confirmed through imaging studies, such as X-rays or MRI, which reveal calcified areas within the muscle tissue. Treatment may involve physical therapy, pain management, and in some cases, surgical intervention to remove calcified tissue. Understanding the underlying causes and associated conditions is crucial for effective management and rehabilitation.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to calcification
  • Need for precise documentation of muscle involvement
  • Differentiation from other muscle disorders
  • Potential for co-existing conditions affecting coding

Audit Risk Factors

  • Inadequate documentation of muscle weakness or paralysis
  • Failure to specify the affected muscle group
  • Misclassification of calcification as a primary diagnosis
  • Lack of imaging studies to support diagnosis

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 presenting with muscle calcification.

Billing Considerations

Ensure to document the duration of immobilization and any rehabilitation efforts.

Neurology

Documentation Requirements

Comprehensive neurological assessments, including muscle strength testing and electromyography results.

Common Clinical Scenarios

Patients with neuromuscular disorders presenting with muscle weakness and calcification.

Billing Considerations

Document any underlying neuromuscular conditions that may contribute to muscle calcification.

Coding Guidelines

Inclusion Criteria

Use M61.269 When
  • According to ICD
  • 10 coding guidelines, M61
  • 269 should be used when there is clear documentation of calcification and ossification in the lower leg muscles without specification of the exact muscle involved
  • It is important to ensure that the condition is not a result of other specified disorders

Exclusion Criteria

Do NOT use M61.269 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97001CPT Code

Physical therapy evaluation

Clinical Scenario

Used for assessing muscle function and planning rehabilitation for patients with calcification.

Documentation Requirements

Detailed evaluation of muscle strength, range of motion, and functional limitations.

Specialty Considerations

Orthopedic and rehabilitation specialists should document the impact of calcification on mobility.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of muscle disorders, including M61.269, which helps in better tracking and management of conditions related to muscle calcification and ossification.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of muscle disorders, including M61.269, which helps in better tracking and management of conditions related to muscle calcification and ossification.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of muscle disorders, including M61.269, which helps in better tracking and management of conditions related to muscle calcification and ossification.

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 in the lower leg?

Common causes include prolonged immobilization, denervation due to neurological conditions, and trauma that leads to muscle injury. Conditions such as myositis can also contribute to the development of calcification.