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ICD-10 Guide
ICD-10 CodesM05.312

M05.312

Billable

Rheumatoid heart disease with rheumatoid arthritis of left shoulder

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

Code Description

ICD-10 M05.312 is a billable code used to indicate a diagnosis of rheumatoid heart disease with rheumatoid arthritis of left shoulder.

Key Diagnostic Point:

Rheumatoid heart disease is a complication of rheumatoid arthritis (RA), an autoimmune disorder characterized by chronic inflammation of the joints. In this condition, the immune system mistakenly attacks the synovial membrane, leading to joint damage and systemic effects, including cardiovascular complications. The left shoulder joint, a ball-and-socket joint formed by the humerus and the scapula, is commonly affected in RA, resulting in pain, stiffness, and reduced range of motion. Patients may experience symptoms such as fatigue, joint swelling, and systemic manifestations like pericarditis or valvular heart disease. The interplay between joint involvement and cardiac complications necessitates a comprehensive approach to treatment, including pharmacologic management, physical therapy, and regular cardiovascular assessments.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Involvement of multiple body systems (musculoskeletal and cardiovascular)
  • Need for detailed documentation of joint involvement and severity
  • Potential for overlapping symptoms with other conditions
  • Complexity of treatment regimens and monitoring requirements

Audit Risk Factors

  • Inadequate documentation of joint involvement and severity
  • Failure to capture systemic manifestations of rheumatoid heart disease
  • Misclassification of laterality in joint involvement
  • Lack of supporting evidence for treatment plans

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed imaging reports (X-rays, MRIs) and functional assessments to evaluate joint integrity and mobility.

Common Clinical Scenarios

Patients presenting with shoulder pain and limited range of motion due to RA, requiring surgical intervention or joint injections.

Billing Considerations

Documenting the severity of joint damage and functional limitations is crucial for treatment planning and coding.

Rheumatology

Documentation Requirements

Laboratory results showing inflammatory markers (e.g., ESR, CRP) and assessments of disease activity (e.g., DAS28 score).

Common Clinical Scenarios

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

Billing Considerations

Systemic involvement, including cardiac assessments, must be documented to support the diagnosis of rheumatoid heart disease.

Physical Medicine

Documentation Requirements

Functional assessments to evaluate mobility, strength, and rehabilitation needs, including assistive devices.

Common Clinical Scenarios

Patients undergoing rehabilitation post-surgery or those requiring physical therapy for joint stiffness.

Billing Considerations

Documenting mobility limitations and the need for assistive devices is essential for coding and treatment planning.

Coding Guidelines

Inclusion Criteria

Use M05.312 When
  • Coders must ensure accurate laterality (left shoulder) is documented, along with the severity of both rheumatoid arthritis and heart disease
  • Encounter type (initial, follow
  • up) must also be considered

Exclusion Criteria

Do NOT use M05.312 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 for managing joint effusion in the left shoulder due to RA.

Documentation Requirements

Document the joint involved, the reason for the procedure, and any imaging guidance used.

Specialty Considerations

Orthopedic considerations for joint health and rheumatologic considerations for disease management.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly in capturing the complexity of conditions like rheumatoid arthritis with systemic involvement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly in capturing the complexity of conditions like rheumatoid arthritis with systemic involvement.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly in capturing the complexity of conditions like rheumatoid arthritis with systemic involvement.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What are the key documentation requirements for coding M05.312?

Key documentation includes detailed descriptions of joint involvement, severity of symptoms, any systemic manifestations, and treatment plans. Imaging studies and lab results supporting the diagnosis are also essential.