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v1.0.0
ICD-10 Guide
ICD-10 CodesM05.39

M05.39

Billable

Rheumatoid heart disease with rheumatoid arthritis of multiple sites

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/12/2025

Code Description

ICD-10 M05.39 is a billable code used to indicate a diagnosis of rheumatoid heart disease with rheumatoid arthritis of multiple sites.

Key Diagnostic Point:

Rheumatoid heart disease is a complication of rheumatoid arthritis (RA), an autoimmune disorder characterized by chronic inflammation of the joints. In RA, the immune system mistakenly attacks the synovial membrane, leading to joint damage and systemic effects. Anatomically, the heart can be affected by inflammation of the pericardium (pericarditis), myocardium (myocarditis), or endocardium (endocarditis), resulting in various cardiac manifestations. Clinically, patients may present with symptoms such as chest pain, dyspnea, and fatigue, alongside the typical joint symptoms of RA, including swelling, stiffness, and pain in multiple joints. The presence of rheumatoid heart disease indicates a more severe systemic involvement of the disease, necessitating comprehensive management strategies that address both musculoskeletal and cardiovascular health.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Multisystem involvement complicating diagnosis and treatment
  • Need for detailed documentation of joint involvement and severity
  • Potential for overlapping symptoms with other cardiac conditions
  • Variability in clinical presentation among patients

Audit Risk Factors

  • Inadequate documentation of joint involvement and severity
  • Failure to capture systemic manifestations of rheumatoid arthritis
  • Misclassification of heart disease severity
  • Lack of interdisciplinary documentation linking rheumatology and cardiology

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging studies (X-rays, MRIs) to assess joint damage, functional assessments to evaluate mobility, and detailed notes on joint swelling and tenderness.

Common Clinical Scenarios

Patients may require joint injections, arthroscopy, or joint replacement surgery due to severe damage from RA.

Billing Considerations

Documentation must specify which joints are involved, the degree of damage, and any functional limitations experienced by the patient.

Rheumatology

Documentation Requirements

Rheumatologic documentation should include laboratory tests for inflammatory markers (e.g., ESR, CRP), disease activity scores (e.g., DAS28), and assessments of systemic involvement.

Common Clinical Scenarios

Patients may present with exacerbations of RA requiring adjustments in DMARD therapy or biologics.

Billing Considerations

Systemic involvement, such as pericarditis, must be documented, including any echocardiographic findings.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate the patient's ability to perform activities of daily living (ADLs) and mobility limitations, including the use of assistive devices.

Common Clinical Scenarios

Rehabilitation may focus on improving joint function and overall physical conditioning.

Billing Considerations

Mobility limitations due to joint pain and systemic fatigue must be documented to justify therapy.

Coding Guidelines

Inclusion Criteria

Use M05.39 When
  • Coders must ensure accurate documentation of laterality (if applicable), severity of joint involvement, and the type of encounter (initial, follow
  • up, etc
  • Specificity in documenting the extent of heart involvement is crucial

Exclusion Criteria

Do NOT use M05.39 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99214CPT Code

Established patient office visit, moderate complexity

Clinical Scenario

Used for follow-up visits assessing RA and cardiac symptoms.

Documentation Requirements

Documentation must include history, examination findings, and treatment plan.

Specialty Considerations

Rheumatology and cardiology notes should be integrated.

93306CPT Code

Echocardiogram, transthoracic, complete

Clinical Scenario

Performed to assess cardiac function in patients with RA.

Documentation Requirements

Indications for the echocardiogram must be clearly documented.

Specialty Considerations

Cardiology input may be necessary for interpretation.

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 rheumatoid arthritis and its systemic manifestations, improving the accuracy of patient records and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding conditions like rheumatoid arthritis and its systemic manifestations, improving the accuracy of patient records and reimbursement.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What are the key documentation elements for coding M05.39?

Key documentation elements include detailed descriptions of joint involvement, severity of symptoms, any systemic manifestations such as cardiac symptoms, and results from relevant diagnostic tests.