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v1.0.0
ICD-10 Guide
ICD-10 CodesM61.144

M61.144

Billable

Myositis ossificans progressiva, right finger(s)

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

Code Description

ICD-10 M61.144 is a billable code used to indicate a diagnosis of myositis ossificans progressiva, right finger(s).

Key Diagnostic Point:

Myositis ossificans progressiva (MOP) is a rare genetic disorder characterized by the abnormal formation of bone in muscles and connective tissues. This condition typically manifests after minor trauma or injury, leading to progressive ossification of soft tissues, particularly in the limbs. In the case of M61.144, the ossification is localized to the right finger(s), which can result in significant muscle weakness, stiffness, and restricted movement. Patients may experience pain and swelling in the affected area, and the condition can lead to functional impairment. The underlying pathophysiology involves mutations in the ACVR1 gene, which plays a crucial role in bone morphogenetic protein (BMP) signaling, leading to inappropriate bone formation. Diagnosis is often confirmed through imaging studies, such as X-rays or MRI, which reveal the presence of heterotopic ossification. Management typically focuses on symptomatic relief, physical therapy, and avoiding invasive procedures that may exacerbate the condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Rarity of the condition makes it less familiar to coders.
  • Specificity of the anatomical location (right finger(s)) adds complexity.
  • Potential for misdiagnosis with other myositis or ossification disorders.
  • Need for precise documentation of symptoms and imaging findings.

Audit Risk Factors

  • Inadequate documentation of the clinical findings.
  • Failure to specify the affected anatomical site.
  • Misinterpretation of imaging results.
  • Lack of genetic testing documentation.

Specialty Focus

Medical Specialties

Rheumatology

Documentation Requirements

Detailed clinical notes on symptoms, physical examination findings, and imaging results.

Common Clinical Scenarios

Patients presenting with unexplained muscle stiffness and swelling after minor trauma.

Billing Considerations

Consideration of family history and genetic counseling may be necessary.

Orthopedics

Documentation Requirements

Surgical notes if any procedures are performed, along with pre-operative and post-operative assessments.

Common Clinical Scenarios

Patients requiring surgical intervention for severe functional impairment due to ossification.

Billing Considerations

Documentation of conservative management attempts before considering surgery.

Coding Guidelines

Inclusion Criteria

Use M61.144 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's specifics, including the affected site
  • Include any relevant imaging or genetic testing results to support the diagnosis

Exclusion Criteria

Do NOT use M61.144 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97001CPT Code

Physical therapy evaluation

Clinical Scenario

Used for assessing functional limitations due to myositis ossificans progressiva.

Documentation Requirements

Detailed evaluation notes and treatment plan.

Specialty Considerations

Rheumatology or physical therapy specialists should document the impact on daily activities.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of myositis ossificans progressiva, improving the accuracy of data collection and reimbursement processes. It has also highlighted the need for detailed documentation to support the diagnosis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of myositis ossificans progressiva, improving the accuracy of data collection and reimbursement processes. It has also highlighted the need for detailed documentation to support the diagnosis.

Reimbursement & Billing Impact

reimbursement processes. It has also highlighted the need for detailed documentation to support the diagnosis.

Resources

Clinical References

  • •
    Myositis ossificans progressiva overview

Coding & Billing References

  • •
    Myositis ossificans progressiva overview

Frequently Asked Questions

What is myositis ossificans progressiva?

Myositis ossificans progressiva is a rare genetic disorder characterized by the abnormal formation of bone in muscles and connective tissues, often triggered by trauma.

How is M61.144 diagnosed?

Diagnosis is made through clinical evaluation, imaging studies, and sometimes genetic testing to confirm mutations in the ACVR1 gene.