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v1.0.0
ICD-10 Guide
ICD-10 CodesM05.041

M05.041

Billable

Felty's syndrome, right hand

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

Code Description

ICD-10 M05.041 is a billable code used to indicate a diagnosis of felty's syndrome, right hand.

Key Diagnostic Point:

Felty's syndrome is a rare complication of rheumatoid arthritis characterized by the triad of rheumatoid arthritis, splenomegaly, and neutropenia. Anatomically, the right hand may exhibit joint involvement primarily in the metacarpophalangeal (MCP) joints and proximal interphalangeal (PIP) joints, leading to deformities and functional limitations. The pathophysiology involves autoimmune processes that result in chronic inflammation, affecting synovial tissues and leading to joint destruction. Clinically, patients may present with swelling, pain, and stiffness in the right hand, impacting their ability to perform daily activities. The syndrome can also lead to systemic complications, including increased susceptibility to infections due to neutropenia, which further complicates management and treatment strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Involvement of multiple body systems (musculoskeletal and hematologic)
  • Need for precise documentation of laterality (right hand)
  • Potential for overlapping symptoms with other rheumatologic conditions
  • Variability in clinical presentation and severity among patients

Audit Risk Factors

  • Inadequate documentation of neutropenia and its impact on treatment
  • Failure to specify laterality in clinical notes
  • Misclassification of the condition as a primary or secondary diagnosis
  • Lack of evidence for the severity of joint involvement

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients may require surgical intervention for joint deformities or severe pain management.

Billing Considerations

Documentation must detail the specific joints involved and the extent of damage to guide treatment decisions.

Rheumatology

Documentation Requirements

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

Common Clinical Scenarios

Management of Felty's syndrome often involves immunosuppressive therapy and monitoring for infections.

Billing Considerations

Systemic involvement must be documented, including any complications arising from neutropenia.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate mobility, strength, and the need for assistive devices.

Common Clinical Scenarios

Rehabilitation may focus on improving hand function and reducing pain through physical therapy.

Billing Considerations

Documentation should address any mobility limitations and the impact on daily living activities.

Coding Guidelines

Inclusion Criteria

Use M05.041 When
  • 10 coding guidelines require specificity in laterality (right hand) and severity of the condition
  • Documentation must reflect the encounter type (initial, follow
  • up) and any related complications

Exclusion Criteria

Do NOT use M05.041 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 to manage Felty's syndrome and assess joint involvement.

Documentation Requirements

Documentation must include a review of systems, examination findings, and management plan.

Specialty Considerations

Rheumatology and primary care considerations for ongoing management.

20610CPT Code

Arthrocentesis, aspiration and/or injection into a major joint or bursa

Clinical Scenario

Used for joint injections in the right hand to manage pain and inflammation.

Documentation Requirements

Indicate the joint involved and the reason for the procedure.

Specialty Considerations

Orthopedic and rheumatologic considerations for joint 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, including Felty's syndrome, enabling better tracking of complications and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, including Felty's syndrome, enabling better tracking of complications and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, including Felty's syndrome, enabling better tracking of complications and 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 hands, splenomegaly, and recurrent infections due to neutropenia. Patients may also experience fatigue and systemic symptoms related to rheumatoid arthritis.