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ICD-10 Guide
ICD-10 CodesM02.84

M02.84

Billable

Other reactive arthropathies, hand

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

Code Description

ICD-10 M02.84 is a billable code used to indicate a diagnosis of other reactive arthropathies, hand.

Key Diagnostic Point:

M02.84 refers to a category of inflammatory joint conditions that arise as a reaction to infections or other stimuli, not directly involving the joint itself. In the hand, this can manifest as pain, swelling, and stiffness in the metacarpophalangeal and interphalangeal joints. The pathophysiology often involves immune-mediated mechanisms where the body’s immune response mistakenly targets joint tissues. Clinically, patients may present with acute or chronic symptoms, often following an infection elsewhere in the body. Anatomically, the hand consists of numerous joints, including the carpometacarpal joints, metacarpophalangeal joints, and interphalangeal joints, all of which can be affected. The condition may lead to functional limitations, impacting grip strength and dexterity, and may require multidisciplinary management including pharmacologic treatment and physical therapy.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes (e.g., infections, autoimmune triggers)
  • Need for precise documentation of joint involvement and severity
  • Differentiation from other arthropathies and musculoskeletal disorders
  • Potential for systemic involvement requiring comprehensive assessment

Audit Risk Factors

  • Inadequate documentation of the reactive nature of the arthropathy
  • Failure to specify laterality of joint involvement
  • Lack of supporting evidence for the diagnosis (e.g., lab results, imaging)
  • Misclassification with other arthropathies leading to incorrect coding

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging studies (X-rays, MRIs) to assess joint integrity and functional assessments to evaluate range of motion and strength.

Common Clinical Scenarios

Patients may present with acute pain following a recent infection, requiring evaluation for possible surgical intervention if joint damage is suspected.

Billing Considerations

Joint-specific considerations include documenting the severity of joint swelling and tenderness, as well as any functional limitations affecting daily activities.

Rheumatology

Documentation Requirements

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

Common Clinical Scenarios

Patients may have a history of autoimmune conditions that complicate the diagnosis and management of reactive arthropathies.

Billing Considerations

Systemic involvement should be documented, particularly if there are signs of extra-articular manifestations.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate the impact of the condition on mobility and daily activities, including the need for assistive devices.

Common Clinical Scenarios

Rehabilitation scenarios may involve post-infection recovery where patients require therapy to regain strength and function.

Billing Considerations

Mobility limitations should be documented, particularly in relation to specific tasks such as gripping or pinching.

Coding Guidelines

Inclusion Criteria

Use M02.84 When
  • Official coding guidelines require coders to specify laterality (right, left, bilateral) and to document the severity of the condition
  • Encounter type (initial, subsequent, sequela) must also be clearly indicated

Exclusion Criteria

Do NOT use M02.84 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 of corticosteroids.

Documentation Requirements

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

Specialty Considerations

Orthopedic and rheumatologic considerations include the need for imaging guidance in some cases.

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 (bacterial, viral), autoimmune responses, and post-infectious inflammatory reactions. It is essential to identify the underlying trigger to guide treatment.