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ICD-10 Guide
ICD-10 CodesM61.08

M61.08

Billable

Myositis ossificans traumatica, other site

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

Code Description

ICD-10 M61.08 is a billable code used to indicate a diagnosis of myositis ossificans traumatica, other site.

Key Diagnostic Point:

Myositis ossificans traumatica is a condition characterized by the abnormal formation of bone tissue within muscle or connective tissue following trauma. This condition typically arises after a significant injury, such as fractures, muscle strains, or contusions, leading to inflammation and subsequent ossification. The process begins with muscle damage, which triggers an inflammatory response. Over time, this inflammation can lead to the deposition of calcium salts in the muscle tissue, resulting in the formation of bone-like structures. Symptoms may include localized pain, swelling, and reduced range of motion in the affected area. Diagnosis is often confirmed through imaging studies such as X-rays or MRI, which can reveal the presence of calcified masses within the muscle. Treatment may involve physical therapy, pain management, and in some cases, surgical intervention to remove the ossified tissue. It is essential for healthcare providers to differentiate myositis ossificans from other conditions that cause muscle weakness or pain, as the management strategies may differ significantly.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires accurate identification of the site of ossification.
  • Differentiation from other types of myositis and muscle disorders.
  • Need for comprehensive documentation of trauma history.
  • Potential for overlapping symptoms with other neuromuscular conditions.

Audit Risk Factors

  • Inadequate documentation of the trauma history.
  • Failure to specify the site of ossification.
  • Misdiagnosis or coding of similar conditions.
  • Insufficient imaging documentation to support the diagnosis.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed history of trauma, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with post-traumatic pain and swelling in muscles.

Billing Considerations

Ensure clear documentation of the mechanism of injury and any surgical interventions.

Physical Medicine and Rehabilitation

Documentation Requirements

Functional assessments, treatment progress notes, and rehabilitation plans.

Common Clinical Scenarios

Patients undergoing rehabilitation for muscle weakness and limited mobility due to myositis ossificans.

Billing Considerations

Document the impact of the condition on daily activities and rehabilitation goals.

Coding Guidelines

Inclusion Criteria

Use M61.08 When
  • According to ICD
  • 10 guidelines, myositis ossificans should be coded based on the specific site of ossification
  • Documentation must support the diagnosis, including trauma history and imaging findings

Exclusion Criteria

Do NOT use M61.08 When
  • Exclusions include conditions that do not involve ossification

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration and/or injection into a major joint or bursa

Clinical Scenario

Used when joint pain is present alongside myositis ossificans.

Documentation Requirements

Document the reason for aspiration/injection and the joint involved.

Specialty Considerations

Orthopedic specialists should ensure clear linkage between the procedure and the diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding myositis ossificans, enabling better tracking of the condition and its treatment outcomes. This specificity aids in research and improves patient care by ensuring accurate diagnosis and management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding myositis ossificans, enabling better tracking of the condition and its treatment outcomes. This specificity aids in research and improves patient care by ensuring accurate diagnosis and management.

Reimbursement & Billing Impact

reimbursement and to avoid claim denials.

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 myositis ossificans traumatica?

Myositis ossificans traumatica is a condition where bone tissue forms in muscle or connective tissue following trauma, leading to pain and restricted movement.

How is myositis ossificans diagnosed?

Diagnosis is typically made through a combination of patient history, physical examination, and imaging studies such as X-rays or MRI.

What are the treatment options for myositis ossificans?

Treatment may include physical therapy, pain management, and in some cases, surgical removal of the ossified tissue.