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ICD-10 Guide
ICD-10 CodesM61.369

M61.369

Billable

Calcification and ossification of muscles associated with burns, unspecified lower leg

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

Code Description

ICD-10 M61.369 is a billable code used to indicate a diagnosis of calcification and ossification of muscles associated with burns, unspecified lower leg.

Key Diagnostic Point:

Calcification and ossification of muscles associated with burns in the lower leg is a condition characterized by the abnormal deposition of calcium salts and bone-like tissue in muscle fibers following thermal injury. This condition can arise from the body's response to severe burns, where the healing process may lead to ectopic calcification. Patients may experience muscle stiffness, pain, and reduced mobility in the affected area. The calcification can interfere with normal muscle function, leading to muscle weakness and potential complications such as myositis, which is inflammation of the muscle tissue. The lower leg is particularly susceptible due to its anatomical structure and the potential for significant thermal injury. Diagnosis typically involves imaging studies, such as X-rays or MRI, to visualize the calcified areas, alongside clinical evaluation of muscle strength and function. Treatment may include physical therapy, pain management, and in some cases, surgical intervention to remove calcified tissue if it severely impacts mobility or causes significant discomfort.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of burn-related complications
  • Differentiation from other muscle disorders
  • Need for precise documentation of burn severity
  • Potential for co-morbid conditions affecting muscle function

Audit Risk Factors

  • Inadequate documentation of burn severity
  • Failure to document associated muscle weakness
  • Lack of imaging studies to support diagnosis
  • Misclassification of muscle disorders

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

Documentation should include the impact of calcification on rehabilitation goals.

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 patients with significant functional impairment.

Billing Considerations

Clear documentation of pre-operative assessments and post-operative outcomes is essential.

Coding Guidelines

Inclusion Criteria

Use M61.369 When
  • According to ICD
  • 10 guidelines, this code should be used when there is clear documentation of calcification and ossification of muscles specifically associated with burns in the lower leg
  • It is important to ensure that the documentation supports the diagnosis and that other potential causes of muscle calcification are ruled out

Exclusion Criteria

Do NOT use M61.369 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97110CPT Code

Therapeutic exercises

Clinical Scenario

Used for rehabilitation of muscle strength in patients with calcification post-burn.

Documentation Requirements

Documentation of the patient's functional limitations and goals of therapy.

Specialty Considerations

Physical therapists should document progress and response to therapy.

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 calcification and ossification of muscles, improving the accuracy of data collection and reimbursement processes. This specificity helps in better tracking of outcomes and resource allocation for burn rehabilitation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like calcification and ossification of muscles, improving the accuracy of data collection and reimbursement processes. This specificity helps in better tracking of outcomes and resource allocation for burn rehabilitation.

Reimbursement & Billing Impact

reimbursement processes. This specificity helps in better tracking of outcomes and resource allocation for burn rehabilitation.

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?

Calcification in muscles following burns is primarily due to the body's inflammatory response to tissue injury, leading to abnormal calcium deposition in the affected muscle fibers.