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ICD-10 Guide
ICD-10 CodesM61.39

M61.39

Billable

Calcification and ossification of muscles associated with burns, multiple sites

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

Code Description

ICD-10 M61.39 is a billable code used to indicate a diagnosis of calcification and ossification of muscles associated with burns, multiple sites.

Key Diagnostic Point:

Calcification and ossification of muscles associated with burns is a condition that occurs when muscle tissue undergoes abnormal mineralization due to the inflammatory response following severe burns. This process can lead to the deposition of calcium salts in the muscle tissue, resulting in stiffness, pain, and impaired mobility. The condition is often seen in patients with extensive burns, where the healing process triggers a cascade of inflammatory responses that can lead to myositis, characterized by muscle inflammation and weakness. The calcification can occur in multiple muscle groups, complicating rehabilitation efforts and potentially leading to long-term functional impairment. Clinically, patients may present with muscle weakness, limited range of motion, and discomfort 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 assess muscle function and strength. Treatment may include physical therapy, pain management, and in some cases, surgical intervention to remove calcified tissue.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of burn-related complications
  • Involves multiple muscle groups, complicating documentation
  • Differentiation from other muscle disorders is necessary
  • Potential for co-morbid conditions affecting coding

Audit Risk Factors

  • Inadequate documentation of burn severity
  • Failure to specify multiple sites of calcification
  • Misclassification of muscle disorders
  • Lack of imaging studies to support diagnosis

Specialty Focus

Medical Specialties

Physical Medicine and Rehabilitation

Documentation Requirements

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

Common Clinical Scenarios

Patients recovering from severe burns with muscle stiffness and weakness.

Billing Considerations

Emphasis on rehabilitation goals and progress notes to support ongoing treatment.

Orthopedic Surgery

Documentation Requirements

Surgical notes detailing the extent of calcification and any interventions performed.

Common Clinical Scenarios

Surgical removal of calcified muscle tissue in burn patients.

Billing Considerations

Clear documentation of the surgical rationale and outcomes is critical.

Coding Guidelines

Inclusion Criteria

Use M61.39 When
  • According to ICD
  • 10 guidelines, M61
  • 39 should be used when calcification and ossification of muscles are specifically linked to burns and multiple sites are involved
  • Coders must ensure that documentation supports the diagnosis and that the condition is not due to other causes

Exclusion Criteria

Do NOT use M61.39 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97110CPT Code

Therapeutic exercises

Clinical Scenario

Used in conjunction with M61.39 for rehabilitation of affected muscles.

Documentation Requirements

Documentation of exercises performed and patient progress.

Specialty Considerations

Physical therapy notes should detail the specific exercises targeting calcified muscles.

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 M61.39, improving the accuracy of data collection and reimbursement processes for burn-related complications.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like M61.39, improving the accuracy of data collection and reimbursement processes for burn-related complications.

Reimbursement & Billing Impact

reimbursement processes for burn-related complications.

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 primary cause of calcification in muscles associated with burns?

The primary cause is the inflammatory response triggered by severe burns, leading to abnormal mineralization in muscle tissues.