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ICD-10 Guide
ICD-10 CodesM05.572

M05.572

Billable

Rheumatoid polyneuropathy with rheumatoid arthritis of left ankle and foot

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

Code Description

ICD-10 M05.572 is a billable code used to indicate a diagnosis of rheumatoid polyneuropathy with rheumatoid arthritis of left ankle and foot.

Key Diagnostic Point:

Rheumatoid polyneuropathy is a complication of rheumatoid arthritis (RA) characterized by peripheral nerve involvement, often leading to sensory and motor deficits. The left ankle and foot are commonly affected due to the inflammatory processes associated with RA, which can lead to synovitis, joint destruction, and neuropathic symptoms. Anatomically, the left ankle consists of the tibia, fibula, and talus, while the foot includes multiple bones such as the metatarsals and phalanges. The inflammatory response in RA can cause joint swelling, pain, and stiffness, particularly in the morning or after periods of inactivity. Clinically, patients may present with weakness, numbness, or tingling in the left foot, alongside typical RA symptoms like joint pain and swelling. The pathophysiology involves immune-mediated damage to the synovial membrane, leading to joint erosion and potential neuropathy due to compression or inflammation of peripheral nerves.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Involvement of multiple anatomical structures (ankle and foot)
  • Presence of polyneuropathy complicating the primary diagnosis
  • Need for detailed documentation of joint involvement and severity
  • Potential for overlapping symptoms with other conditions

Audit Risk Factors

  • Inadequate documentation of neurological symptoms
  • Failure to specify laterality (left ankle and foot)
  • Lack of evidence for the severity of rheumatoid arthritis
  • Misclassification of polyneuropathy as a separate condition

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 any surgical interventions performed.

Common Clinical Scenarios

Common scenarios include surgical interventions for joint repair or replacement, as well as conservative management strategies.

Billing Considerations

Joint-specific considerations include documenting the extent of joint damage and any associated deformities.

Rheumatology

Documentation Requirements

Rheumatologic documentation must include laboratory tests for inflammatory markers (e.g., ESR, CRP), disease activity scores, and assessments of systemic involvement.

Common Clinical Scenarios

Autoimmune and inflammatory scenarios often involve medication management, including DMARDs and biologics.

Billing Considerations

Systemic involvement and disease progression factors should be documented to justify treatment plans.

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

Mobility limitations and the need for assistive devices should be clearly documented to support therapy goals.

Coding Guidelines

Inclusion Criteria

Use M05.572 When
  • Official coding guidelines require accurate documentation of laterality (left ankle and foot), severity of the rheumatoid arthritis, and the type of encounter (initial, follow
  • up, etc
  • Coders must ensure that all relevant conditions are documented to support the chosen codes

Exclusion Criteria

Do NOT use M05.572 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 procedure performed, and the indication for the procedure.

Specialty Considerations

Orthopedic considerations include assessing joint stability and function post-procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has increased specificity in coding musculoskeletal conditions, allowing for better tracking of disease progression and treatment outcomes. Coders must be diligent in capturing the nuances of conditions like rheumatoid arthritis and its complications.

ICD-9 vs ICD-10

The transition to ICD-10 has increased specificity in coding musculoskeletal conditions, allowing for better tracking of disease progression and treatment outcomes. Coders must be diligent in capturing the nuances of conditions like rheumatoid arthritis and its complications.

Reimbursement & Billing Impact

The transition to ICD-10 has increased specificity in coding musculoskeletal conditions, allowing for better tracking of disease progression and treatment outcomes. Coders must be diligent in capturing the nuances of conditions like rheumatoid arthritis and its complications.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What documentation is necessary to support the diagnosis of rheumatoid polyneuropathy?

Documentation should include clinical findings of neuropathy, such as sensory and motor deficits, alongside evidence of rheumatoid arthritis, including serological markers and joint assessments.