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 CodesM61.132

M61.132

Billable

Myositis ossificans progressiva, left forearm

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

Code Description

ICD-10 M61.132 is a billable code used to indicate a diagnosis of myositis ossificans progressiva, left forearm.

Key Diagnostic Point:

Myositis ossificans progressiva (MOP) is a rare genetic disorder characterized by the abnormal formation of bone in muscles and connective tissues. This condition typically begins in early childhood and progresses over time, leading to significant muscle weakness and restricted mobility. In the case of myositis ossificans progressiva affecting the left forearm, patients may experience painful swelling and stiffness in the forearm muscles, which can severely limit their range of motion. The condition is caused by mutations in the ACVR1 gene, which plays a crucial role in regulating bone growth. Diagnosis is often confirmed through clinical evaluation, imaging studies such as X-rays or MRIs, and genetic testing. Management focuses on symptomatic relief, physical therapy, and avoiding trauma to affected areas, as injuries can exacerbate ossification. Understanding the complexities of this condition is essential for accurate coding and appropriate patient care.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Rare condition requiring specialized knowledge for accurate coding.
  • Potential for misdiagnosis with other myositis conditions.
  • Need for precise documentation of symptoms and imaging findings.
  • Genetic testing results may complicate coding decisions.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to include genetic testing results.
  • Misinterpretation of imaging studies.
  • Inconsistent coding of related conditions.

Specialty Focus

Medical Specialties

Rheumatology

Documentation Requirements

Detailed clinical notes on symptoms, physical examination findings, and treatment plans.

Common Clinical Scenarios

Patients presenting with progressive muscle stiffness and pain, particularly after minor injuries.

Billing Considerations

Documentation should emphasize the genetic basis and progression of the disease.

Genetics

Documentation Requirements

Genetic testing results and family history of similar conditions.

Common Clinical Scenarios

Patients with a family history of myositis ossificans or unexplained ossification.

Billing Considerations

Ensure that genetic counseling notes are included in the documentation.

Coding Guidelines

Inclusion Criteria

Use M61.132 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's specifics, including laterality and any associated symptoms

Exclusion Criteria

Do NOT use M61.132 When
  • Exclude conditions that do not meet the criteria for myositis ossificans progressiva

Related ICD-10 Codes

Related CPT Codes

97001CPT Code

Physical therapy evaluation

Clinical Scenario

Used for assessing functional limitations due to myositis ossificans progressiva.

Documentation Requirements

Detailed evaluation of range of motion and functional abilities.

Specialty Considerations

Rheumatology and physical therapy should coordinate documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of myositis ossificans progressiva, improving the accuracy of data collection and reimbursement processes. This specificity aids in better understanding the condition's prevalence and management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of myositis ossificans progressiva, improving the accuracy of data collection and reimbursement processes. This specificity aids in better understanding the condition's prevalence and management.

Reimbursement & Billing Impact

reimbursement processes. This specificity aids in better understanding the condition's prevalence and management.

Resources

Clinical References

  • •
    Myositis ossificans progressiva: A comprehensive overview

Coding & Billing References

  • •
    Myositis ossificans progressiva: A comprehensive overview

Frequently Asked Questions

What are the common symptoms of myositis ossificans progressiva?

Common symptoms include progressive muscle stiffness, swelling, and pain in affected areas, often following minor injuries.