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ICD-10 Guide
ICD-10 CodesM61.22

M61.22

Billable

Paralytic calcification and ossification of muscle, upper arm

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

Code Description

ICD-10 M61.22 is a billable code used to indicate a diagnosis of paralytic calcification and ossification of muscle, upper arm.

Key Diagnostic Point:

Paralytic calcification and ossification of muscle in the upper arm is a condition characterized by the abnormal deposition of calcium salts in muscle tissue, leading to stiffness, pain, and reduced mobility. This condition often arises following prolonged immobilization or disuse of the affected muscle, commonly seen in patients with neuromuscular disorders, trauma, or after surgical interventions. The calcification process can result from muscle injury or inflammation, such as myositis, where the muscle fibers become damaged and subsequently calcify. Patients may present with muscle weakness, limited range of motion, and discomfort in the upper arm. Diagnosis typically involves imaging studies, such as X-rays or MRI, to visualize the calcified areas. Treatment may include physical therapy, pain management, and in some cases, surgical intervention to remove the calcified tissue. Understanding the underlying causes and associated conditions is crucial for effective management and coding of this diagnosis.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of muscle pathology and neuromuscular conditions.
  • Differentiation from other types of muscle calcification.
  • Need for precise documentation of symptoms and imaging results.
  • Potential overlap with other ICD-10 codes related to muscle disorders.

Audit Risk Factors

  • Inadequate documentation of the clinical rationale for the diagnosis.
  • Failure to specify the duration of immobilization or disuse.
  • Lack of imaging results to support the diagnosis.
  • Misclassification of the condition as a different type of muscle disorder.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Post-surgical patients with upper arm immobilization, trauma cases with muscle injury.

Billing Considerations

Ensure clarity in documenting the relationship between immobilization and calcification.

Neurology

Documentation Requirements

Comprehensive neurological assessments, including muscle strength testing and electromyography results.

Common Clinical Scenarios

Patients with neuromuscular disorders presenting with muscle weakness and calcification.

Billing Considerations

Document any underlying neuromuscular conditions that may contribute to the calcification.

Coding Guidelines

Inclusion Criteria

Use M61.22 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition's etiology and any associated symptoms
  • Include relevant imaging studies and treatment plans in the medical record

Exclusion Criteria

Do NOT use M61.22 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97110CPT Code

Therapeutic exercises

Clinical Scenario

Used in rehabilitation for muscle weakness due to calcification.

Documentation Requirements

Document the type and duration of exercises performed.

Specialty Considerations

Orthopedic specialists should note the patient's progress in therapy.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of muscle disorders, including M61.22, which enhances the ability to track and manage conditions related to muscle calcification and ossification.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of muscle disorders, including M61.22, which enhances the ability to track and manage conditions related to muscle calcification and ossification.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of muscle disorders, including M61.22, which enhances the ability to track and manage conditions related to muscle calcification and ossification.

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 in the upper arm?

Common causes include prolonged immobilization due to fractures, surgical procedures, or neuromuscular disorders that lead to muscle disuse.