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ICD-10 Guide
ICD-10 CodesM02.8

M02.8

Billable

Other reactive arthropathies

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

Code Description

ICD-10 M02.8 is a billable code used to indicate a diagnosis of other reactive arthropathies.

Key Diagnostic Point:

Reactive arthropathies are a group of inflammatory joint conditions that arise secondary to infections or other inflammatory processes elsewhere in the body. They are characterized by the presence of joint pain, swelling, and stiffness, often affecting the knees, ankles, and feet. Anatomically, these conditions can involve synovial joints, where inflammation of the synovial membrane leads to effusion and pain. The pathophysiology often involves an immune response triggered by infections, such as those caused by Chlamydia or gastrointestinal pathogens, leading to a cascade of inflammatory mediators that affect joint tissues. Clinically, patients may present with asymmetric joint involvement, morning stiffness, and systemic symptoms such as fever or malaise. The diagnosis is often supported by clinical examination, serological tests, and imaging studies to assess joint involvement and rule out other conditions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes (e.g., infections, autoimmune triggers)
  • Potential for overlapping symptoms with other arthropathies
  • Need for detailed documentation of joint involvement and severity
  • Variability in clinical presentation and response to treatment

Audit Risk Factors

  • Inadequate documentation of joint involvement and severity
  • Failure to specify laterality of affected joints
  • Misclassification of reactive arthropathies as primary arthropathies
  • Lack of supporting diagnostic tests in the medical record

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging results (e.g., X-rays, MRIs) and functional assessments to evaluate joint mobility and pain levels.

Common Clinical Scenarios

Patients may present with acute knee swelling following a recent infection, requiring surgical intervention for joint aspiration.

Billing Considerations

Documentation should specify which joints are affected and the severity of the condition to guide treatment options.

Rheumatology

Documentation Requirements

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

Common Clinical Scenarios

Patients with a history of reactive arthritis may present with recurrent episodes triggered by infections, necessitating a review of their medical history.

Billing Considerations

Systemic involvement, such as skin or eye symptoms, should be documented to assess the full impact of the disease.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate the patient's mobility, pain levels, and rehabilitation needs.

Common Clinical Scenarios

Patients may require physical therapy to regain joint function after an episode of reactive arthritis.

Billing Considerations

Documentation should address any assistive devices used and the patient's progress in rehabilitation.

Coding Guidelines

Inclusion Criteria

Use M02.8 When
  • Coders must ensure accurate documentation of laterality (e
  • , left, right, bilateral) and severity of the condition
  • Encounter type (initial, follow
  • up) should also be documented to support the coding

Exclusion Criteria

Do NOT use M02.8 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 swelling in reactive arthropathies to relieve pressure and pain.

Documentation Requirements

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

Specialty Considerations

Orthopedic considerations include the need for imaging to guide the procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding reactive arthropathies, enabling better tracking of these conditions and their management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding reactive arthropathies, enabling better tracking of these conditions and their management.

Reimbursement & Billing Impact

reimbursement process.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What are the common triggers for reactive arthropathies?

Common triggers include infections such as Chlamydia, gastrointestinal pathogens, and viral illnesses. It is essential to document any recent infections to support the diagnosis.