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 CodesM05.19

M05.19

Billable

Rheumatoid lung disease with rheumatoid arthritis of multiple sites

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

Code Description

ICD-10 M05.19 is a billable code used to indicate a diagnosis of rheumatoid lung disease with rheumatoid arthritis of multiple sites.

Key Diagnostic Point:

Rheumatoid lung disease is a serious complication of rheumatoid arthritis (RA), characterized by inflammation of lung tissue due to autoimmune processes. Anatomically, the lungs consist of lobes (right lung has three lobes, left lung has two) and are surrounded by pleura. In RA, the immune system mistakenly attacks the synovial membranes, leading to joint inflammation and systemic manifestations, including lung involvement. Clinically, patients may present with symptoms such as dyspnea, cough, and chest pain, alongside typical RA symptoms like joint swelling and stiffness. The pathophysiology involves the deposition of immune complexes in lung tissue, leading to interstitial lung disease, pleuritis, or pulmonary nodules. The presence of rheumatoid lung disease indicates a more severe form of RA, often correlating with increased morbidity and necessitating comprehensive management strategies.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Multisystem involvement complicates diagnosis and management.
  • Requires understanding of both musculoskeletal and pulmonary anatomy.
  • Documentation must reflect both joint and lung pathology.
  • Differentiation from other lung diseases is necessary.

Audit Risk Factors

  • Inadequate documentation of lung involvement.
  • Failure to specify the number of joints affected.
  • Misclassification of lung disease severity.
  • Lack of correlation between clinical findings and documented diagnoses.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients may require joint replacement surgery or arthroscopy due to severe joint damage from RA.

Billing Considerations

Documentation must specify which joints are involved and the severity of damage to guide treatment decisions.

Rheumatology

Documentation Requirements

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

Common Clinical Scenarios

Management of RA may involve DMARDs, biologics, and monitoring for lung complications.

Billing Considerations

Systemic involvement must be documented, including any pulmonary function tests to assess lung capacity.

Physical Medicine

Documentation Requirements

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

Common Clinical Scenarios

Rehabilitation may focus on improving mobility and strength, particularly in patients with significant joint involvement.

Billing Considerations

Mobility limitations due to both joint and lung involvement must be documented to justify therapy.

Coding Guidelines

Inclusion Criteria

Use M05.19 When
  • Coders must ensure accurate documentation of laterality (if applicable), severity of joint involvement, and the type of encounter (initial, follow
  • up, etc
  • Specificity in documenting lung disease manifestations is crucial

Exclusion Criteria

Do NOT use M05.19 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99214CPT Code

Established patient office visit, moderate complexity

Clinical Scenario

Used for follow-up visits for RA management with lung disease.

Documentation Requirements

Documentation must include history, examination findings, and treatment plan.

Specialty Considerations

Rheumatology focus on disease activity and lung function.

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 those with systemic involvement like rheumatoid lung disease, improving the accuracy of patient records and treatment plans.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly those with systemic involvement like rheumatoid lung disease, improving the accuracy of patient records and treatment plans.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly those with systemic involvement like rheumatoid lung disease, improving the accuracy of patient records and treatment plans.

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 lung disease?

Common symptoms include persistent cough, shortness of breath, chest pain, and fatigue, often accompanied by the typical symptoms of rheumatoid arthritis such as joint pain and swelling.