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v1.0.0
ICD-10 Guide
ICD-10 CodesM05.052

M05.052

Billable

Felty's syndrome, left hip

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

Code Description

ICD-10 M05.052 is a billable code used to indicate a diagnosis of felty's syndrome, left hip.

Key Diagnostic Point:

Felty's syndrome is a rare complication of rheumatoid arthritis characterized by the triad of rheumatoid arthritis, splenomegaly, and neutropenia. In the context of the left hip, patients may experience significant joint inflammation, pain, and functional impairment. Anatomically, the left hip joint comprises the acetabulum of the pelvis and the femoral head, which are surrounded by ligaments, tendons, and synovial fluid. The inflammatory process in Felty's syndrome can lead to erosive changes in the joint, resulting in decreased range of motion and mobility limitations. Clinically, patients may present with swelling, tenderness, and stiffness in the left hip, impacting their ability to perform daily activities. The pathophysiology involves immune-mediated damage to the synovial membrane, leading to chronic inflammation and joint destruction, which can exacerbate the systemic effects of rheumatoid arthritis.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Involvement of multiple systems (rheumatologic and hematologic)
  • Need for precise documentation of laterality and joint involvement
  • Potential for overlapping diagnoses (e.g., rheumatoid arthritis)
  • Variability in clinical presentation and severity

Audit Risk Factors

  • Inadequate documentation of joint involvement and laterality
  • Failure to document the relationship between rheumatoid arthritis and Felty's syndrome
  • Misclassification of the severity of the condition
  • Lack of supporting evidence for neutropenia or splenomegaly

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging studies (e.g., X-rays, MRIs) to assess joint integrity, functional assessments to evaluate mobility, and detailed notes on any surgical interventions.

Common Clinical Scenarios

Common scenarios include joint replacement surgery or arthroscopy for severe joint damage due to Felty's syndrome.

Billing Considerations

Joint-specific considerations include the assessment of joint stability, range of motion, and the presence of any deformities.

Rheumatology

Documentation Requirements

Rheumatologic documentation must include laboratory tests for inflammatory markers (e.g., ESR, CRP), complete blood counts to monitor neutropenia, and assessments of disease activity.

Common Clinical Scenarios

Patients may present with exacerbations of rheumatoid arthritis, requiring adjustments in immunosuppressive therapy.

Billing Considerations

Systemic involvement, including monitoring for infections due to neutropenia, is crucial.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate the patient's ability to perform activities of daily living and any rehabilitation needs.

Common Clinical Scenarios

Rehabilitation scenarios may involve physical therapy to improve joint function and mobility.

Billing Considerations

Mobility limitations may necessitate the use of assistive devices, which should be documented.

Coding Guidelines

Inclusion Criteria

Use M05.052 When
  • 10 coding guidelines require accurate documentation of laterality (left hip), severity of the condition, and the type of encounter (initial, follow
  • up, etc
  • Coders must ensure that all relevant clinical information is captured to support the diagnosis

Exclusion Criteria

Do NOT use M05.052 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 joint aspiration in patients with Felty's syndrome experiencing joint effusion in the left hip.

Documentation Requirements

Document the indication for the procedure, including joint involvement and any prior treatments.

Specialty Considerations

Orthopedic and rheumatologic considerations include monitoring for infection and assessing joint fluid.

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 tracking of disease prevalence and 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 tracking of disease prevalence and 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 tracking of disease prevalence and treatment outcomes.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What is the significance of documenting neutropenia in Felty's syndrome?

Documenting neutropenia is crucial as it is one of the defining features of Felty's syndrome and impacts treatment decisions, including the risk of infections and the need for monitoring.