ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesM61.359

M61.359

Billable

Calcification and ossification of muscles associated with burns, unspecified thigh

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

Code Description

ICD-10 M61.359 is a billable code used to indicate a diagnosis of calcification and ossification of muscles associated with burns, unspecified thigh.

Key Diagnostic Point:

Calcification and ossification of muscles associated with burns is a condition that arises when muscle tissue undergoes abnormal mineralization following thermal injury. This process can lead to stiffness, pain, and functional impairment in the affected area. In the case of unspecified thigh involvement, the calcification may not be localized to a specific muscle group, complicating diagnosis and treatment. The condition is often a sequela of severe burns, where the healing process triggers aberrant tissue responses, including myositis and muscle weakness. Patients may experience reduced range of motion and muscle strength, impacting their rehabilitation and recovery. The presence of calcified muscle can also lead to neuromuscular complications, as the normal contractile function of muscle fibers is disrupted. Clinicians must carefully assess the extent of calcification and associated symptoms to develop an effective treatment plan, which may include physical therapy, pain management, and in some cases, surgical intervention.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of burn-related complications
  • Differentiation from other muscle disorders
  • Need for precise documentation of muscle involvement
  • Potential for co-morbid conditions affecting coding

Audit Risk Factors

  • Inadequate documentation of burn severity
  • Lack of specificity in muscle involvement
  • Failure to document associated symptoms
  • Misinterpretation of calcification vs. ossification

Specialty Focus

Medical Specialties

Physical Medicine and Rehabilitation

Documentation Requirements

Detailed assessment of muscle function, range of motion, and pain levels.

Common Clinical Scenarios

Patients recovering from severe burns with muscle stiffness and weakness.

Billing Considerations

Documentation should include specific muscle groups affected and functional limitations.

Orthopedic Surgery

Documentation Requirements

Surgical notes detailing the extent of calcification and any interventions performed.

Common Clinical Scenarios

Surgical intervention for severe calcification impacting mobility.

Billing Considerations

Clear documentation of pre-operative assessments and post-operative outcomes is crucial.

Coding Guidelines

Inclusion Criteria

Use M61.359 When
  • According to ICD
  • 10 guidelines, this code should be used when there is clear documentation of calcification and ossification of muscles specifically associated with burns
  • Coders should ensure that the documentation supports the diagnosis and that the site of involvement is accurately captured

Exclusion Criteria

Do NOT use M61.359 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97110CPT Code

Therapeutic exercises

Clinical Scenario

Used in rehabilitation for muscle weakness post-burn.

Documentation Requirements

Documentation of the patient's functional limitations and progress.

Specialty Considerations

Physical therapy notes should clearly outline the treatment plan and goals.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding conditions like calcification and ossification of muscles. This has improved the accuracy of data collection and reimbursement processes, but it also requires coders to be more diligent in documentation and coding practices.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding conditions like calcification and ossification of muscles. This has improved the accuracy of data collection and reimbursement processes, but it also requires coders to be more diligent in documentation and coding practices.

Reimbursement & Billing Impact

reimbursement processes, but it also requires coders to be more diligent in documentation and coding practices.

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 documentation is needed to support the use of M61.359?

Documentation should include details of the burn injury, specific muscle involvement, symptoms experienced by the patient, and any treatments provided. Imaging studies that confirm calcification or ossification should also be included.