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ICD-10 Guide
ICD-10 CodesM02.849

M02.849

Billable

Other reactive arthropathies, unspecified hand

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

Code Description

ICD-10 M02.849 is a billable code used to indicate a diagnosis of other reactive arthropathies, unspecified hand.

Key Diagnostic Point:

Reactive arthropathies are inflammatory joint conditions that arise as a response to an infection or other stimuli, often affecting the hands. The hand consists of multiple joints, including the metacarpophalangeal joints, proximal interphalangeal joints, and distal interphalangeal joints, which can be involved in reactive arthropathies. Clinically, patients may present with joint pain, swelling, and stiffness, particularly after a preceding infection. The pathophysiology involves an immune-mediated response where the body mistakenly attacks its own joint tissues following an infection, leading to inflammation. Symptoms can vary in intensity and may include limited range of motion and functional impairment, particularly in daily activities requiring fine motor skills. Diagnosis typically involves clinical evaluation, imaging studies, and laboratory tests to rule out other conditions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying infections leading to reactive arthropathy.
  • Overlap with other inflammatory joint diseases, complicating diagnosis.
  • Need for detailed documentation of joint involvement and functional limitations.
  • Variability in clinical presentation and response to treatment.

Audit Risk Factors

  • Inadequate documentation of the underlying infection or trigger.
  • Failure to specify laterality or joint involvement.
  • Misclassification with other arthropathies.
  • Lack of supporting diagnostic tests or imaging.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients may present with acute onset of joint pain following a recent infection, requiring surgical intervention if joint damage is severe.

Billing Considerations

Documentation should specify which joints are affected and the severity of involvement 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 may have a history of autoimmune conditions that complicate the reactive arthropathy diagnosis.

Billing Considerations

Consideration of systemic involvement and monitoring for potential progression to chronic arthritis.

Physical Medicine

Documentation Requirements

Functional assessments should detail the patient's mobility limitations and rehabilitation needs, including any assistive devices required.

Common Clinical Scenarios

Patients may require physical therapy to regain strength and range of motion post-inflammation.

Billing Considerations

Focus on the impact of joint involvement on daily activities and quality of life.

Coding Guidelines

Inclusion Criteria

Use M02.849 When
  • Follow official coding guidelines for laterality (e
  • , left, right, bilateral) and severity of the condition
  • Ensure to document the encounter type (initial, follow
  • up) and any relevant comorbidities

Exclusion Criteria

Do NOT use M02.849 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 when joint effusion is present and requires drainage or injection.

Documentation Requirements

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

Specialty Considerations

Orthopedic and rheumatologic considerations for joint management.

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, enabling better tracking of reactive arthropathies and their management.

ICD-9 vs ICD-10

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

Reimbursement & Billing Impact

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

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines

Coding & Billing References

  • •
    American College of Rheumatology Guidelines

Frequently Asked Questions

What are the common causes of reactive arthropathies?

Common causes include infections such as gastrointestinal or genitourinary infections, as well as viral illnesses. The immune response to these infections can trigger inflammation in the joints, particularly in the hands.