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ICD-10 Guide
ICD-10 CodesM05.5

M05.5

Billable

Rheumatoid polyneuropathy with rheumatoid arthritis

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

Code Description

ICD-10 M05.5 is a billable code used to indicate a diagnosis of rheumatoid polyneuropathy with rheumatoid arthritis.

Key Diagnostic Point:

Rheumatoid polyneuropathy is a complication of rheumatoid arthritis (RA), a chronic autoimmune disorder characterized by inflammation of the synovial joints. The condition can lead to peripheral nerve damage due to systemic inflammation and vasculitis, affecting the nerves that control movement and sensation. Clinically, patients may present with symptoms such as numbness, tingling, and weakness in the extremities, alongside the typical joint pain and swelling associated with RA. Anatomically, the peripheral nervous system is impacted, particularly the sensory and motor nerves, which can lead to significant functional limitations. The pathophysiology involves immune-mediated damage to the nerve fibers, often exacerbated by the inflammatory milieu of RA. Diagnosis typically involves clinical evaluation, nerve conduction studies, and electromyography to assess nerve function and identify the extent of neuropathy.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Multisystem involvement complicating diagnosis and treatment
  • Need for comprehensive documentation of neurological symptoms
  • Variability in clinical presentation among patients
  • Potential for overlapping conditions requiring differential diagnosis

Audit Risk Factors

  • Inadequate documentation of neurological symptoms
  • Failure to link polyneuropathy to rheumatoid arthritis in documentation
  • Misclassification of the severity of symptoms
  • Inconsistent use of diagnostic tests in documentation

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging studies (X-rays, MRIs) to assess joint involvement and functional assessments to evaluate mobility limitations.

Common Clinical Scenarios

Patients may require joint surgeries or interventions for severe deformities caused by RA.

Billing Considerations

Documentation must specify which joints are affected and the severity of joint damage.

Rheumatology

Documentation Requirements

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

Common Clinical Scenarios

Management of RA flares and adjustments in DMARD therapy.

Billing Considerations

Systemic involvement must be documented, including any extra-articular manifestations.

Physical Medicine

Documentation Requirements

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

Common Clinical Scenarios

Rehabilitation programs focusing on improving mobility and strength.

Billing Considerations

Documentation of assistive devices used and their impact on mobility.

Coding Guidelines

Inclusion Criteria

Use M05.5 When
  • Coders must ensure accurate documentation of laterality (if applicable), severity of symptoms, and the type of encounter (initial, follow
  • up, etc

Exclusion Criteria

Do NOT use M05.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95886CPT Code

Nerve conduction studies

Clinical Scenario

Used to evaluate the extent of polyneuropathy in patients with rheumatoid arthritis.

Documentation Requirements

Documentation must include the specific nerves tested and the results of the studies.

Specialty Considerations

Rheumatology and neurology may collaborate on the interpretation of results.

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 complications such as polyneuropathy associated with rheumatoid arthritis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, enabling better tracking of complications such as polyneuropathy associated with rheumatoid arthritis.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, enabling better tracking of complications such as polyneuropathy associated with rheumatoid arthritis.

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, weakness in the extremities, and pain that may be exacerbated by joint inflammation associated with rheumatoid arthritis.