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v1.0.0
ICD-10 Guide
ICD-10 CodesM02.30

M02.30

Billable

Reiter's disease, unspecified site

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

Code Description

ICD-10 M02.30 is a billable code used to indicate a diagnosis of reiter's disease, unspecified site.

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, although not all patients exhibit all three symptoms. Anatomically, Reiter's disease primarily affects the joints, particularly the lower extremities, including the knees, ankles, and feet. The pathophysiology involves an autoimmune response triggered by infections, leading to inflammation of the synovial membranes and subsequent joint damage. Clinically, patients may present with joint pain, swelling, and stiffness, which can lead to significant movement limitations. The condition can also involve enthesitis, which is inflammation at the sites where tendons and ligaments attach to bone, and may affect the spine in some cases. Early diagnosis and management are crucial to prevent chronic disability.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Varied clinical presentation with overlapping symptoms from other conditions
  • Potential for systemic involvement beyond musculoskeletal symptoms
  • Need for comprehensive documentation of joint involvement and severity
  • Differentiation from other types of inflammatory arthritis

Audit Risk Factors

  • Inadequate documentation of joint involvement and severity
  • Failure to document associated symptoms such as urethritis or conjunctivitis
  • Misclassification of the condition as another type of arthritis
  • Lack of evidence for the underlying infection that triggered the arthritis

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients may present with acute onset of knee pain following a gastrointestinal infection, requiring evaluation for potential surgical intervention if joint damage is significant.

Billing Considerations

Documentation should specify which joints are affected and the severity of involvement, as this can impact treatment decisions.

Rheumatology

Documentation Requirements

Rheumatologic documentation must include laboratory tests for inflammation markers (ESR, CRP) and assessments of disease activity using tools like the Disease Activity Score (DAS).

Common Clinical Scenarios

Patients may present with a history of urethritis followed by joint pain, necessitating a comprehensive evaluation for autoimmune conditions.

Billing Considerations

Systemic involvement, such as skin lesions or ocular symptoms, should be documented to provide a complete clinical picture.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate the patient's ability to perform daily activities and any need for assistive devices.

Common Clinical Scenarios

Patients may require rehabilitation following acute flare-ups to restore mobility and function.

Billing Considerations

Documentation should address mobility limitations and the impact on quality of life.

Coding Guidelines

Inclusion Criteria

Use M02.30 When
  • Official coding guidelines for M02
  • 30 require documentation of the site of involvement, severity of symptoms, and any associated conditions
  • Laterality is not specified for this code, but it is important to document the specific joints affected

Exclusion Criteria

Do NOT use M02.30 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 patients with Reiter's disease.

Documentation Requirements

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

Specialty Considerations

Orthopedic considerations include assessing joint stability and potential for surgical intervention.

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, including Reiter's disease. This specificity aids in better tracking of disease prevalence and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, including Reiter's disease. This specificity aids in better tracking of disease prevalence and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, including Reiter's disease. This specificity aids in better tracking of disease prevalence and treatment outcomes.

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 enthesitis and low back pain.