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v1.0.0
ICD-10 Guide
ICD-10 CodesM05.112

M05.112

Billable

Rheumatoid lung disease with rheumatoid arthritis of left shoulder

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

Code Description

ICD-10 M05.112 is a billable code used to indicate a diagnosis of rheumatoid lung disease with rheumatoid arthritis of left shoulder.

Key Diagnostic Point:

Rheumatoid lung disease is a serious complication of rheumatoid arthritis (RA), characterized by interstitial lung disease, pleuritis, or pulmonary nodules. The left shoulder joint is commonly affected in RA, leading to synovitis, joint erosion, and functional impairment. Anatomically, the shoulder consists of the humerus, scapula, and clavicle, with the glenohumeral joint being the primary articulation. In RA, inflammation can lead to pain, stiffness, and decreased range of motion, impacting daily activities. Clinically, patients may present with dyspnea, cough, and chest discomfort alongside shoulder pain and swelling. The interplay between systemic inflammation and localized joint involvement complicates management and requires a multidisciplinary approach.

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 both rheumatologic and orthopedic care

Audit Risk Factors

  • Inadequate documentation of lung involvement
  • Failure to specify laterality of joint involvement
  • Lack of evidence for disease activity markers
  • Insufficient detail on functional limitations

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed imaging reports (X-rays, MRIs) showing joint erosion and functional assessments (e.g., range of motion tests).

Common Clinical Scenarios

Patients requiring joint injections, arthroscopy, or surgical intervention due to severe joint damage.

Billing Considerations

Documenting the extent of joint damage and functional limitations is crucial for treatment planning.

Rheumatology

Documentation Requirements

Assessment of inflammatory markers (e.g., ESR, CRP), disease activity scores, and patient-reported outcomes.

Common Clinical Scenarios

Management of systemic symptoms alongside joint treatment, including DMARD therapy adjustments.

Billing Considerations

Monitoring for pulmonary complications and their impact on overall disease management.

Physical Medicine

Documentation Requirements

Functional assessments focusing on mobility, strength, and endurance, along with rehabilitation goals.

Common Clinical Scenarios

Rehabilitation post-surgery or during flare-ups to improve joint function and mobility.

Billing Considerations

Addressing assistive device needs and home modifications for patient safety.

Coding Guidelines

Inclusion Criteria

Use M05.112 When
  • Follow official coding guidelines for laterality (left shoulder), severity (acute vs
  • chronic), and encounter type (initial vs
  • follow
  • Ensure that all relevant conditions are documented to support the coding

Exclusion Criteria

Do NOT use M05.112 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 managing joint effusion in the left shoulder.

Documentation Requirements

Document the joint involved, amount of fluid aspirated, and any therapeutic agents injected.

Specialty Considerations

Orthopedic considerations for joint health and rheumatologic implications for systemic treatment.

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 arthritis. This specificity aids in better tracking of disease outcomes and resource allocation.

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 arthritis. This specificity aids in better tracking of disease outcomes and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, particularly those with systemic involvement like rheumatoid arthritis. This specificity aids in better tracking of disease outcomes and resource allocation.

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 M05.112?

Key documentation includes detailed clinical notes on joint involvement, imaging results, pulmonary function tests, and any inflammatory markers. It is essential to document the severity of both the lung disease and joint involvement to support the coding.