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ICD-10 Guide
ICD-10 CodesM05.512

M05.512

Billable

Rheumatoid polyneuropathy with rheumatoid arthritis of left shoulder

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

Code Description

ICD-10 M05.512 is a billable code used to indicate a diagnosis of rheumatoid polyneuropathy with rheumatoid arthritis of left shoulder.

Key Diagnostic Point:

Rheumatoid polyneuropathy is a complication of rheumatoid arthritis (RA) characterized by peripheral nerve involvement due to systemic inflammation. The left shoulder is often affected in RA, leading to joint pain, swelling, and stiffness. Anatomically, the shoulder joint comprises the humerus, scapula, and clavicle, with surrounding muscles, tendons, and ligaments contributing to its complex movement. In RA, synovial inflammation can lead to joint erosion and deformity, impacting mobility. Clinically, patients may present with weakness, sensory changes, and pain radiating from the shoulder, often exacerbated by inflammatory flares. Diagnosis typically involves clinical evaluation, imaging studies, and laboratory tests for rheumatoid factor and anti-CCP antibodies. Management includes pharmacologic interventions, physical therapy, and possibly surgical options for severe cases.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Involvement of multiple body systems (musculoskeletal and neurological)
  • Need for precise documentation of joint involvement and laterality
  • Variability in clinical presentation and severity of symptoms
  • Potential for overlapping diagnoses and complications

Audit Risk Factors

  • Inadequate documentation of joint involvement and laterality
  • Failure to document the severity of polyneuropathy
  • Misclassification of rheumatoid arthritis type or stage
  • Lack of supporting evidence for treatment modalities used

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 for joint repair or replacement, and management of acute exacerbations requiring corticosteroid injections.

Billing Considerations

Joint-specific considerations include documenting the extent of erosion, deformity, and functional limitations affecting daily activities.

Rheumatology

Documentation Requirements

Rheumatologic documentation must include laboratory results indicating inflammation (ESR, CRP), disease activity scores, and assessments of systemic involvement.

Common Clinical Scenarios

Autoimmune scenarios may involve managing flares with DMARDs or biologics, and monitoring for extra-articular manifestations.

Billing Considerations

Systemic involvement requires careful tracking of symptoms and treatment responses to adjust therapy accordingly.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate mobility, strength, and the need for assistive devices, along with rehabilitation goals.

Common Clinical Scenarios

Rehabilitation scenarios may include post-surgical recovery or therapy for improving range of motion and strength.

Billing Considerations

Mobility limitations should be documented thoroughly to justify therapy interventions and assistive device prescriptions.

Coding Guidelines

Inclusion Criteria

Use M05.512 When
  • Follow official coding guidelines for laterality (left shoulder), severity (documenting the extent of polyneuropathy), and encounter type (initial vs
  • follow
  • up visits)
  • Ensure that all relevant conditions are coded appropriately

Exclusion Criteria

Do NOT use M05.512 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 inflammation in the left shoulder.

Documentation Requirements

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

Specialty Considerations

Orthopedic considerations include assessing joint stability and range of motion pre- and post-procedure.

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, enabling better tracking of disease progression and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, enabling better tracking of disease progression and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, enabling better tracking of disease progression 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 common symptoms of rheumatoid polyneuropathy?

Common symptoms include weakness, numbness, tingling in the extremities, and pain that may radiate from the affected joints. These symptoms can significantly impact daily activities and quality of life.