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ICD-10 Guide
ICD-10 CodesM61.432

M61.432

Billable

Other calcification of muscle, left forearm

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

Code Description

ICD-10 M61.432 is a billable code used to indicate a diagnosis of other calcification of muscle, left forearm.

Key Diagnostic Point:

M61.432 refers to a condition characterized by abnormal calcification in the muscle tissue of the left forearm. This calcification can occur due to various underlying factors, including trauma, inflammation, or metabolic disorders. The presence of calcification in muscle tissue may lead to symptoms such as localized pain, muscle weakness, and reduced range of motion. In some cases, it may be associated with myositis, a condition that involves inflammation of the muscle, which can further complicate the clinical picture. Patients may experience muscle stiffness and discomfort, particularly during physical activity. The diagnosis typically involves imaging studies, such as X-rays or MRI, to visualize the calcified areas and assess the extent of muscle involvement. Treatment options may include physical therapy, pain management, and addressing any underlying conditions contributing to the calcification. Accurate coding is essential for proper reimbursement and to reflect the complexity of the patient's condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes for calcification
  • Potential overlap with myositis and other muscle disorders
  • Need for precise documentation of symptoms and imaging findings
  • Variability in treatment approaches based on underlying conditions

Audit Risk Factors

  • Insufficient documentation of symptoms and imaging results
  • Inconsistent coding of related muscle disorders
  • Failure to document underlying conditions contributing to calcification
  • Lack of clarity in the clinical rationale for the diagnosis

Specialty Focus

Medical Specialties

Rheumatology

Documentation Requirements

Detailed history of symptoms, physical examination findings, and imaging results.

Common Clinical Scenarios

Patients presenting with muscle pain and stiffness, particularly after trauma or in the context of autoimmune diseases.

Billing Considerations

Consideration of comorbid conditions that may contribute to muscle calcification, such as metabolic disorders.

Orthopedics

Documentation Requirements

Documentation of any surgical interventions, imaging studies, and rehabilitation efforts.

Common Clinical Scenarios

Patients with calcification following fractures or surgical procedures in the forearm.

Billing Considerations

Assessment of functional impairment and the impact on daily activities.

Coding Guidelines

Inclusion Criteria

Use M61.432 When
  • According to ICD
  • 10 guidelines, M61
  • 432 should be used when there is clear documentation of calcification localized to the left forearm muscle
  • Coders must ensure that the diagnosis is supported by imaging studies and clinical findings

Exclusion Criteria

Do NOT use M61.432 When
  • Exclusion criteria include conditions where calcification is not the primary issue

Related ICD-10 Codes

Related CPT Codes

73030CPT Code

Radiologic examination, forearm

Clinical Scenario

Used when imaging is performed to assess calcification in the left forearm.

Documentation Requirements

Radiology report detailing findings of calcification.

Specialty Considerations

Ensure that the imaging study is linked to the diagnosis of muscle calcification.

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 M61.432, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of muscle disorders and their management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like M61.432, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of muscle disorders and their management.

Reimbursement & Billing Impact

reimbursement.

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 muscle calcification?

Common causes include trauma, inflammatory conditions, metabolic disorders, and certain genetic conditions that affect calcium metabolism.