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ICD-10 Guide
ICD-10 CodesM61.3

M61.3

Billable

Calcification and ossification of muscles associated with burns

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

Code Description

ICD-10 M61.3 is a billable code used to indicate a diagnosis of calcification and ossification of muscles associated with burns.

Key Diagnostic Point:

Calcification and ossification of muscles associated with burns is a condition that arises as a complication of severe thermal injuries. When muscles are exposed to extreme heat, the resultant tissue damage can lead to a cascade of inflammatory responses, resulting in myositis, which is the inflammation of muscle tissue. Over time, this inflammation can trigger abnormal mineralization processes, leading to calcification and ossification. These processes can severely impair muscle function, resulting in muscle weakness and reduced mobility. Patients may experience pain, stiffness, and decreased range of motion in the affected areas. The condition is particularly concerning in burn patients, as it can complicate rehabilitation efforts and prolong recovery times. Clinicians must monitor for signs of muscle calcification and ossification, especially in patients with extensive burns, to implement timely interventions that 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
  • Differentiation from other muscle disorders
  • Need for detailed documentation of burn severity
  • Potential for multiple coding scenarios based on muscle involvement

Audit Risk Factors

  • Inadequate documentation of burn severity
  • Failure to link muscle symptoms to burn history
  • Misclassification of muscle disorders
  • Lack of follow-up documentation on muscle recovery

Specialty Focus

Medical Specialties

Burn Surgery

Documentation Requirements

Detailed records of burn extent, depth, and treatment interventions.

Common Clinical Scenarios

Management of extensive burns leading to muscle complications.

Billing Considerations

Ensure accurate documentation of muscle involvement and recovery progress.

Physical Medicine and Rehabilitation

Documentation Requirements

Assessment of muscle strength, range of motion, and functional status.

Common Clinical Scenarios

Rehabilitation of burn patients with muscle calcification.

Billing Considerations

Focus on functional outcomes and therapy progress.

Coding Guidelines

Inclusion Criteria

Use M61.3 When
  • According to ICD
  • 10 guidelines, M61
  • 3 should be used when there is clear documentation linking muscle calcification and ossification to burn injuries
  • It is important to note the specific muscles affected and the extent of the burn injury

Exclusion Criteria

Do NOT use M61.3 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97001CPT Code

Physical therapy evaluation

Clinical Scenario

Used for assessing muscle function in burn patients.

Documentation Requirements

Detailed evaluation of muscle strength and functional limitations.

Specialty Considerations

Physical therapists should document specific muscle groups affected.

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 M61.3, 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 M61.3, 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 documentation is required to support the use of M61.3?

Documentation must include details of the burn injury, the specific muscles affected, and any treatments or interventions related to muscle calcification or ossification.