ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesM05.571

M05.571

Billable

Rheumatoid polyneuropathy with rheumatoid arthritis of right ankle and foot

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

Code Description

ICD-10 M05.571 is a billable code used to indicate a diagnosis of rheumatoid polyneuropathy with rheumatoid arthritis of right ankle and foot.

Key Diagnostic Point:

Rheumatoid polyneuropathy is a complication of rheumatoid arthritis (RA) characterized by peripheral nerve involvement, which can lead to sensory and motor deficits. The right ankle and foot are commonly affected joints in RA, leading to inflammation, pain, and potential deformities. Anatomically, the ankle consists of the tibia, fibula, and talus, while the foot comprises multiple bones including the metatarsals and phalanges. In RA, synovial inflammation can cause joint swelling and stiffness, particularly in the morning or after periods of inactivity. Patients may experience difficulty in ambulation, reduced range of motion, and joint instability, which can significantly impact their quality of life. The pathophysiology involves autoimmune mechanisms where the immune system mistakenly attacks the synovial membrane, leading to chronic inflammation and joint damage. Clinical presentation may include joint pain, swelling, and neurological symptoms such as numbness or tingling in the lower extremities due to nerve compression or damage.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Involvement of multiple anatomical structures (joints and nerves)
  • Need for precise documentation of laterality and joint specificity
  • Complexity of differentiating between RA symptoms and polyneuropathy
  • Potential for co-morbid conditions affecting treatment and coding

Audit Risk Factors

  • Inadequate documentation of joint involvement and laterality
  • Failure to document the severity of symptoms and functional limitations
  • Misclassification of polyneuropathy as a separate condition
  • Lack of supporting evidence for the diagnosis in clinical notes

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Common scenarios include surgical interventions for joint deformities or arthroplasties due to severe RA.

Billing Considerations

Documentation must reflect the specific joints involved, the extent of damage, and any surgical history.

Rheumatology

Documentation Requirements

Rheumatologic documentation should include laboratory tests for inflammation markers (e.g., ESR, CRP), disease activity scores, and patient-reported outcomes.

Common Clinical Scenarios

Scenarios often involve managing systemic symptoms and adjusting DMARD therapy based on disease progression.

Billing Considerations

Consideration of systemic involvement and monitoring for extra-articular manifestations of RA.

Physical Medicine

Documentation Requirements

Functional assessments should detail the patient's mobility limitations, use of assistive devices, and rehabilitation goals.

Common Clinical Scenarios

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

Billing Considerations

Focus on the impact of polyneuropathy on functional abilities and the need for adaptive strategies.

Coding Guidelines

Inclusion Criteria

Use M05.571 When
  • Follow official coding guidelines for laterality (right ankle and foot), severity of the condition, and type of encounter (initial, follow
  • up, etc
  • Ensure that documentation supports the diagnosis and any associated complications

Exclusion Criteria

Do NOT use M05.571 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 swelling and pain management in RA patients.

Documentation Requirements

Document the joint involved, the reason for the procedure, and any therapeutic agents used.

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 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 key documentation requirements for coding M05.571?

Key documentation includes detailed notes on joint involvement, laterality, severity of symptoms, and any neurological assessments related to polyneuropathy. Ensure that all clinical findings are well-documented to support the diagnosis.