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 CodesM02.35

M02.35

Billable

Reiter's disease, hip

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

Code Description

ICD-10 M02.35 is a billable code used to indicate a diagnosis of reiter's disease, hip.

Key Diagnostic Point:

Reiter's disease, also known as reactive arthritis, is a type of inflammatory arthritis that develops in response to an infection in another part of the body. It is characterized by the classic triad of arthritis, urethritis, and conjunctivitis. In the case of M02.35, the hip joint is specifically affected. Anatomically, the hip joint is a ball-and-socket joint formed by the acetabulum of the pelvis and the head of the femur, allowing for a wide range of motion. Pathophysiologically, Reiter's disease is associated with an autoimmune response triggered by infections, often involving the urogenital or gastrointestinal tracts. Clinically, patients may present with unilateral or bilateral hip pain, swelling, and reduced range of motion, often accompanied by systemic symptoms such as fever and malaise. The inflammatory process can lead to joint erosion and long-term disability if not managed appropriately.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of autoimmune mechanisms and their impact on joint health.
  • Involves specific anatomical knowledge of the hip joint and its function.
  • Documentation must differentiate between reactive arthritis and other forms of arthritis.
  • Requires awareness of associated systemic symptoms and their implications for treatment.

Audit Risk Factors

  • Inadequate documentation of the underlying infection triggering the arthritis.
  • Failure to specify laterality of hip involvement.
  • Misclassification of Reiter's disease as another type of arthritis.
  • Lack of evidence for the severity of joint involvement.

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 range of motion and pain levels.

Common Clinical Scenarios

Common scenarios include patients presenting with hip pain following a recent infection, requiring surgical intervention for joint debridement or arthroplasty in severe cases.

Billing Considerations

Joint-specific considerations include the need to document the extent of joint damage and any surgical interventions performed.

Rheumatology

Documentation Requirements

Rheumatologic documentation must include laboratory tests for inflammatory 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 or conjunctivitis, necessitating a comprehensive evaluation of joint involvement and systemic symptoms.

Billing Considerations

Systemic involvement may require monitoring for complications such as uveitis or skin lesions.

Physical Medicine

Documentation Requirements

Functional assessments should document mobility limitations, pain levels, and the need for assistive devices.

Common Clinical Scenarios

Rehabilitation scenarios may involve physical therapy to improve joint function and mobility post-inflammation.

Billing Considerations

Consideration of assistive devices may be necessary for patients with significant mobility limitations.

Coding Guidelines

Inclusion Criteria

Use M02.35 When
  • 10 coding guidelines require specificity in documenting laterality (right, left, bilateral) and the severity of the condition (acute vs
  • chronic)
  • Encounter type (initial, subsequent) must also be documented

Exclusion Criteria

Do NOT use M02.35 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration of hip joint

Clinical Scenario

Used to relieve joint effusion in patients with Reiter's disease.

Documentation Requirements

Document the indication for aspiration, joint involved, and any findings.

Specialty Considerations

Orthopedic considerations for joint health and potential for further 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, enabling 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, enabling better tracking of disease prevalence and treatment 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 hips, along with possible systemic symptoms such as fever, fatigue, and conjunctivitis.