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ICD-10 Guide
ICD-10 CodesM05.019

M05.019

Billable

Felty's syndrome, unspecified shoulder

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

Code Description

ICD-10 M05.019 is a billable code used to indicate a diagnosis of felty's syndrome, unspecified shoulder.

Key Diagnostic Point:

Felty's syndrome is a rare complication of rheumatoid arthritis characterized by the triad of rheumatoid arthritis, splenomegaly, and leukopenia. The condition can lead to significant joint involvement, particularly in the shoulders, which may present with pain, swelling, and limited range of motion. Anatomically, the shoulder consists of the humerus, scapula, and clavicle, with the glenohumeral joint being the most mobile joint in the body. In Felty's syndrome, the inflammatory process can cause synovitis, leading to joint destruction and deformity. Clinically, patients may experience systemic symptoms such as fatigue and recurrent infections due to leukopenia, alongside localized symptoms in the shoulder region. The pathophysiology involves immune dysregulation and increased autoantibody production, contributing to joint inflammation and systemic manifestations.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of autoimmune disease processes
  • Involves multiple body systems (musculoskeletal and hematologic)
  • Documentation must reflect both joint and systemic involvement
  • Potential for overlapping diagnoses with rheumatoid arthritis

Audit Risk Factors

  • Inadequate documentation of systemic symptoms
  • Failure to specify joint involvement
  • Misclassification of the severity of the condition
  • Lack of supporting lab results for leukopenia

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging studies (e.g., X-rays, MRIs) to assess joint integrity and functional assessments to evaluate range of motion and strength.

Common Clinical Scenarios

Patients may present with shoulder pain and limited mobility, requiring surgical intervention such as arthroscopy or joint replacement in severe cases.

Billing Considerations

Documentation must detail the extent of joint damage and any surgical interventions performed.

Rheumatology

Documentation Requirements

Rheumatologic documentation should include laboratory tests for rheumatoid factor, anti-CCP antibodies, and complete blood counts to monitor leukopenia and disease activity.

Common Clinical Scenarios

Patients may experience exacerbations of rheumatoid arthritis symptoms, necessitating adjustments in disease-modifying antirheumatic drugs (DMARDs).

Billing Considerations

Systemic involvement must be documented, including any splenomegaly or recurrent infections.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate the patient's ability to perform daily activities and any need for assistive devices.

Common Clinical Scenarios

Rehabilitation may focus on restoring shoulder function through physical therapy and pain management strategies.

Billing Considerations

Mobility limitations should be clearly documented to support the need for rehabilitation services.

Coding Guidelines

Inclusion Criteria

Use M05.019 When
  • 10 coding guidelines require specificity in documenting laterality (if applicable), severity of the condition, and the type of encounter (initial, follow
  • up, etc
  • Accurate coding also necessitates linking the diagnosis to relevant treatment and management plans

Exclusion Criteria

Do NOT use M05.019 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 shoulder due to Felty's syndrome.

Documentation Requirements

Documentation must include the indication for the procedure and any imaging guidance used.

Specialty Considerations

Orthopedic considerations include assessing joint stability and potential for surgical intervention.

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 those with systemic implications like Felty's syndrome. This specificity aids in better understanding patient populations and improving treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly those with systemic implications like Felty's syndrome. This specificity aids in better understanding patient populations and improving treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly those with systemic implications like Felty's syndrome. This specificity aids in better understanding patient populations and improving treatment outcomes.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What are the key symptoms of Felty's syndrome?

Key symptoms include joint pain and swelling, particularly in the shoulders, fatigue, splenomegaly, and recurrent infections due to leukopenia. Accurate documentation of these symptoms is crucial for proper coding.