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ICD-10 Guide
ICD-10 CodesM05.55

M05.55

Billable

Rheumatoid polyneuropathy with rheumatoid arthritis of hip

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

Code Description

ICD-10 M05.55 is a billable code used to indicate a diagnosis of rheumatoid polyneuropathy with rheumatoid arthritis of hip.

Key Diagnostic Point:

Rheumatoid polyneuropathy is a complication of rheumatoid arthritis (RA) characterized by peripheral nerve involvement due to systemic inflammation. The hip joint, a ball-and-socket joint formed by the femur and the acetabulum of the pelvis, can be affected by RA, leading to synovitis, joint erosion, and pain. Clinically, patients may present with joint stiffness, swelling, and reduced range of motion in the hip, alongside symptoms of neuropathy such as numbness, tingling, and weakness in the lower extremities. The pathophysiology involves immune-mediated inflammation that damages both the synovial tissue and peripheral nerves, contributing to functional impairments and mobility limitations. Diagnosis is supported by clinical examination, imaging studies, and laboratory tests for rheumatoid factor and anti-citrullinated protein antibodies.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Involvement of multiple body systems (musculoskeletal and nervous)
  • Need for precise documentation of joint involvement and severity
  • Potential for overlapping symptoms with other conditions
  • Variability in clinical presentation among patients

Audit Risk Factors

  • Inadequate documentation of joint involvement and severity
  • Failure to document the presence of polyneuropathy
  • Misclassification of the primary diagnosis
  • Lack of supporting evidence for treatment plans

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Common scenarios include surgical interventions such as hip arthroplasty or joint injections for pain management.

Billing Considerations

Documentation must reflect the severity of joint involvement and any surgical history.

Rheumatology

Documentation Requirements

Rheumatologic documentation should include laboratory tests for inflammatory markers (ESR, CRP), disease activity scores, and notes on systemic involvement.

Common Clinical Scenarios

Scenarios often involve medication management, including DMARDs and biologics, and monitoring for disease progression.

Billing Considerations

Consideration of comorbidities and their impact on treatment decisions is crucial.

Physical Medicine

Documentation Requirements

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

Common Clinical Scenarios

Rehabilitation scenarios may include physical therapy for joint mobility and strength training.

Billing Considerations

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

Coding Guidelines

Inclusion Criteria

Use M05.55 When
  • Follow official coding guidelines for laterality (e
  • , right, left, bilateral), severity of joint involvement, and encounter type (initial, follow
  • Ensure accurate documentation of polyneuropathy symptoms

Exclusion Criteria

Do NOT use M05.55 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 pain management in RA patients with hip involvement.

Documentation Requirements

Document the joint accessed, the procedure performed, and the indication for the procedure.

Specialty Considerations

Orthopedic and rheumatologic considerations for joint health and inflammation management.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has improved specificity in coding musculoskeletal conditions, allowing for better tracking of complications like polyneuropathy in RA patients.

ICD-9 vs ICD-10

The transition to ICD-10 has improved specificity in coding musculoskeletal conditions, allowing for better tracking of complications like polyneuropathy in RA patients.

Reimbursement & Billing Impact

The transition to ICD-10 has improved specificity in coding musculoskeletal conditions, allowing for better tracking of complications like polyneuropathy in RA patients.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What are the common symptoms of rheumatoid polyneuropathy?

Common symptoms include numbness, tingling, and weakness in the extremities, often accompanied by joint pain and stiffness due to rheumatoid arthritis.