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ICD-10 Guide
ICD-10 CodesM05.17

M05.17

Billable

Rheumatoid lung disease with rheumatoid arthritis of ankle and foot

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

Code Description

ICD-10 M05.17 is a billable code used to indicate a diagnosis of rheumatoid lung disease with rheumatoid arthritis of ankle and foot.

Key Diagnostic Point:

Rheumatoid lung disease is a serious complication of rheumatoid arthritis (RA), characterized by interstitial lung disease, pleuritis, and pulmonary nodules. The condition arises from the systemic inflammatory nature of RA, where autoantibodies attack synovial joints, leading to joint destruction and systemic manifestations. The ankle and foot joints are commonly affected, presenting with swelling, pain, and stiffness, particularly in the morning or after periods of inactivity. Anatomically, the ankle consists of the tibia, fibula, and talus, while the foot comprises multiple bones including the metatarsals and phalanges. The involvement of these joints can severely limit mobility and function, impacting daily activities. Clinically, patients may experience dyspnea, cough, and chest discomfort due to lung involvement, necessitating a multidisciplinary approach for management.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Involvement of multiple body systems (musculoskeletal and respiratory)
  • Need for precise documentation of joint involvement and severity
  • Potential for overlapping symptoms with other conditions
  • Complexity of treatment regimens involving multiple specialties

Audit Risk Factors

  • Inadequate documentation of lung involvement
  • Failure to specify laterality of joint involvement
  • Misclassification of severity of joint damage
  • Lack of comprehensive treatment documentation

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Documentation should include imaging studies (X-rays, MRIs) showing joint damage, functional assessments, and treatment plans.

Common Clinical Scenarios

Patients may require surgical intervention for severe joint deformities or replacements.

Billing Considerations

Orthopedic assessments must detail the extent of joint involvement and any surgical history.

Rheumatology

Documentation Requirements

Documentation should include lab results for inflammatory markers (e.g., RF, anti-CCP), disease activity scores, and treatment response.

Common Clinical Scenarios

Management of systemic symptoms and coordination of care with pulmonology for lung involvement.

Billing Considerations

Monitoring for disease progression and systemic manifestations is crucial.

Physical Medicine

Documentation Requirements

Functional assessments to evaluate mobility, strength, and rehabilitation needs.

Common Clinical Scenarios

Rehabilitation programs focusing on improving joint function and mobility.

Billing Considerations

Assessment of assistive devices and home modifications may be necessary.

Coding Guidelines

Inclusion Criteria

Use M05.17 When
  • Follow official coding guidelines for laterality (right, left, bilateral), severity (mild, moderate, severe), and encounter type (initial, follow
  • Ensure comprehensive documentation supports the diagnosis

Exclusion Criteria

Do NOT use M05.17 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 effusion management in the ankle or foot.

Documentation Requirements

Document the joint involved, reason for aspiration, and any therapeutic interventions.

Specialty Considerations

Orthopedic and rheumatologic considerations for joint 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, particularly in capturing the systemic nature of diseases like rheumatoid arthritis and its complications.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly in capturing the systemic nature of diseases like rheumatoid arthritis and its complications.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly in capturing the systemic nature of diseases 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 are the key documentation requirements for M05.17?

Key documentation includes detailed descriptions of joint involvement, severity assessments, systemic symptoms related to lung disease, and treatment plans that reflect a multidisciplinary approach.