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ICD-10 Guide
ICD-10 CodesM61.442

M61.442

Billable

Other calcification of muscle, left hand

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

Code Description

ICD-10 M61.442 is a billable code used to indicate a diagnosis of other calcification of muscle, left hand.

Key Diagnostic Point:

Calcification of muscle refers to the abnormal deposition of calcium salts in muscle tissue, which can lead to stiffness, pain, and impaired function. In the case of M61.442, the calcification is specifically located in the left hand. This condition may arise from various underlying causes, including trauma, chronic inflammation, or metabolic disorders. It can be associated with myositis, a condition characterized by inflammation of the muscles, which may lead to muscle weakness and discomfort. Patients may present with symptoms such as localized pain, swelling, and reduced range of motion in the affected area. The diagnosis often involves imaging studies, such as X-rays or MRI, to visualize the calcification and assess its extent. Treatment may include physical therapy, pain management, and in some cases, surgical intervention to remove the calcified tissue. Understanding the etiology and implications of muscle calcification is crucial for effective management and coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of muscle pathology and calcification processes
  • Differentiation from other muscle disorders like myositis or muscle weakness
  • Need for precise documentation of location and extent of calcification
  • Potential overlap with other ICD-10 codes for muscle disorders

Audit Risk Factors

  • Inadequate documentation of the specific location of calcification
  • Failure to document underlying conditions contributing to calcification
  • Misuse of related codes leading to incorrect coding
  • Lack of imaging studies to support the diagnosis

Specialty Focus

Medical Specialties

Rheumatology

Documentation Requirements

Detailed clinical history, physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with joint pain and muscle stiffness, particularly in the context of autoimmune disorders.

Billing Considerations

Documentation must clearly differentiate between calcification due to inflammatory processes versus degenerative changes.

Orthopedics

Documentation Requirements

Surgical notes, imaging studies, and post-operative follow-up documentation.

Common Clinical Scenarios

Patients with calcified muscle presenting for surgical evaluation or intervention.

Billing Considerations

Clear documentation of the functional impact of calcification on mobility and daily activities.

Coding Guidelines

Inclusion Criteria

Use M61.442 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition, including the specific location and any associated conditions
  • Ensure that the code is supported by clinical documentation and imaging studies

Exclusion Criteria

Do NOT use M61.442 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 a patient with muscle calcification also presents with joint effusion.

Documentation Requirements

Document the reason for the procedure, findings, and any therapeutic interventions.

Specialty Considerations

Orthopedic specialists should ensure that the procedure is justified based on clinical findings.

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 muscle calcification, improving the accuracy of diagnoses and treatment tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like muscle calcification, improving the accuracy of diagnoses and treatment tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like muscle calcification, improving the accuracy of diagnoses and treatment tracking.

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, chronic inflammation, metabolic disorders, and certain systemic diseases.