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ICD-10 Guide
ICD-10 CodesM61.251

M61.251

Billable

Paralytic calcification and ossification of muscle, right thigh

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

Code Description

ICD-10 M61.251 is a billable code used to indicate a diagnosis of paralytic calcification and ossification of muscle, right thigh.

Key Diagnostic Point:

Paralytic calcification and ossification of muscle in the right thigh is a condition characterized by the abnormal deposition of calcium salts and bone-like tissue within the muscle fibers, typically following a period of disuse or paralysis. This condition often arises in patients who have experienced significant muscle weakness due to neuromuscular disorders, trauma, or prolonged immobilization. The calcification process can lead to stiffness, pain, and reduced range of motion in the affected muscle. Clinically, patients may present with symptoms such as localized swelling, tenderness, and functional impairment of the thigh. Diagnosis is usually confirmed through imaging studies, such as X-rays or MRI, which reveal calcified areas within the muscle tissue. Management may involve physical therapy, pain management, and in some cases, surgical intervention to remove the calcified tissue if it causes significant functional limitations. Understanding the underlying causes and associated conditions is crucial for effective treatment and rehabilitation.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of muscle pathology and neuromuscular conditions.
  • Differentiation from other muscle disorders such as myositis or dystrophies.
  • Need for precise documentation of the affected muscle and side.
  • Potential for co-morbid conditions that may complicate coding.

Audit Risk Factors

  • Inadequate documentation of the clinical findings.
  • Failure to specify the affected muscle and side.
  • Misinterpretation of imaging results.
  • Inconsistent coding of associated conditions.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed notes on physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients with post-traumatic muscle calcification or those with prolonged immobilization.

Billing Considerations

Consideration of surgical options and rehabilitation protocols.

Neurology

Documentation Requirements

Comprehensive neurological assessments and history of neuromuscular disorders.

Common Clinical Scenarios

Patients with neuromuscular diseases leading to muscle weakness and subsequent calcification.

Billing Considerations

Coordination with physical therapy for rehabilitation strategies.

Coding Guidelines

Inclusion Criteria

Use M61.251 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition, including the specific muscle affected and any associated conditions
  • Ensure that the code reflects the current clinical status of the patient

Exclusion Criteria

Do NOT use M61.251 When
No specific exclusions found.

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 muscle calcification.

Documentation Requirements

Document the reason for the procedure and the findings.

Specialty Considerations

Orthopedic specialists may perform this procedure for symptomatic relief.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding muscle disorders, including paralytic calcification and ossification. This specificity aids in better tracking of conditions and outcomes, ultimately improving patient care.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding muscle disorders, including paralytic calcification and ossification. This specificity aids in better tracking of conditions and outcomes, ultimately improving patient care.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding muscle disorders, including paralytic calcification and ossification. This specificity aids in better tracking of conditions and outcomes, ultimately improving patient care.

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 are the common causes of paralytic calcification?

Common causes include prolonged immobilization, neuromuscular disorders, trauma, and disuse of the affected muscle.

How is paralytic calcification diagnosed?

Diagnosis typically involves clinical evaluation, imaging studies such as X-rays or MRI, and exclusion of other muscle disorders.

What treatment options are available for this condition?

Treatment may include physical therapy, pain management, and surgical intervention if necessary.

Can paralytic calcification lead to permanent muscle damage?

If left untreated, it can lead to stiffness and functional impairment, but early intervention can improve outcomes.