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 CodesM02.3

M02.3

Billable

Reiter's disease

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

Code Description

ICD-10 M02.3 is a billable code used to indicate a diagnosis of reiter's disease.

Key Diagnostic Point:

Reiter's disease, also known as reactive arthritis, is a type of inflammatory arthritis that occurs as a reaction to an infection in another part of the body, often the urogenital or gastrointestinal tract. It is characterized by the classic triad of arthritis, urethritis, and conjunctivitis. Anatomically, Reiter's disease primarily affects the lower extremities, particularly the knees, ankles, and feet, leading to swelling, pain, and limited range of motion. The pathophysiology involves an autoimmune response triggered by bacterial infections, leading to inflammation in the joints and surrounding tissues. Clinically, patients may present with asymmetric joint involvement, enthesitis (inflammation at tendon insertion sites), and dactylitis (swelling of fingers or toes). The condition can also lead to systemic symptoms such as fatigue and fever, complicating the clinical picture.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Varied clinical presentation with joint and systemic involvement
  • Potential overlap with other inflammatory arthritides
  • Need for comprehensive documentation of symptoms and triggers
  • Differentiation from other musculoskeletal conditions

Audit Risk Factors

  • Inadequate documentation of joint involvement and severity
  • Failure to document associated symptoms like urethritis or conjunctivitis
  • Misclassification of the condition as primary arthritis without infection history
  • Lack of follow-up documentation on treatment response

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

Common scenarios include patients presenting with knee pain and swelling following a recent gastrointestinal infection, requiring joint aspiration or injection.

Billing Considerations

Documentation must specify which joints are affected and the severity of involvement, as well as any surgical interventions considered.

Rheumatology

Documentation Requirements

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

Common Clinical Scenarios

Patients may present with a history of urethritis and subsequent joint pain, necessitating a comprehensive evaluation of systemic involvement.

Billing Considerations

Attention should be given to the potential for chronicity and the need for long-term management strategies.

Physical Medicine

Documentation Requirements

Functional assessments should document the patient's mobility limitations and rehabilitation needs, including range of motion and strength evaluations.

Common Clinical Scenarios

Rehabilitation scenarios may involve patients recovering from acute flare-ups, requiring tailored physical therapy programs.

Billing Considerations

Consideration of assistive devices and home modifications may be necessary to support patient mobility.

Coding Guidelines

Inclusion Criteria

Use M02.3 When
  • Official coding guidelines for M02
  • 3 include specifying laterality when applicable, documenting the severity of joint involvement, and noting the encounter type (initial, follow
  • up, etc

Exclusion Criteria

Do NOT use M02.3 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration of a major joint or bursa

Clinical Scenario

Used for joint effusion management in Reiter's disease.

Documentation Requirements

Document joint involved, amount of fluid aspirated, and any therapeutic interventions.

Specialty Considerations

Orthopedic and rheumatologic considerations for joint health and management.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding Reiter's disease, enabling better tracking of the condition's prevalence and management outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding Reiter's disease, enabling better tracking of the condition's prevalence and management outcomes.

Reimbursement & Billing Impact

reimbursement.

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 Reiter's disease?

Common symptoms include joint pain and swelling, particularly in the knees and ankles, along with possible urethritis and conjunctivitis. Patients may also experience systemic symptoms like fatigue.