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ICD-10 Guide
ICD-10 CodesM02.18

M02.18

Billable

Postdysenteric arthropathy, vertebrae

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

Code Description

ICD-10 M02.18 is a billable code used to indicate a diagnosis of postdysenteric arthropathy, vertebrae.

Key Diagnostic Point:

Postdysenteric arthropathy refers to a type of inflammatory arthritis that occurs following an episode of dysentery, typically caused by bacterial infections such as Shigella or Salmonella. This condition can lead to spondyloarthritis, which primarily affects the vertebrae and can result in significant pain and stiffness. Anatomically, the vertebrae consist of 33 individual bones that form the spinal column, providing structural support and protecting the spinal cord. Pathophysiologically, postdysenteric arthropathy is characterized by an immune-mediated response that leads to inflammation of the joints and surrounding tissues, particularly in the axial skeleton. Clinically, patients may present with symptoms such as lower back pain, reduced range of motion, and discomfort during movement, which can significantly impact daily activities and quality of life. The condition may also be associated with enthesitis, where inflammation occurs at the sites where tendons and ligaments attach to bone, further complicating the clinical picture.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of post-infectious inflammatory processes.
  • Involves specific anatomical knowledge of the vertebral column.
  • Differentiation from other types of spondyloarthritis.
  • Documentation of prior dysentery episode and its relation to arthropathy.

Audit Risk Factors

  • Inadequate documentation linking dysentery to arthropathy.
  • Failure to document the severity and functional limitations.
  • Misclassification of the condition as a primary diagnosis without supporting evidence.
  • Lack of imaging studies to support vertebral involvement.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging studies (X-rays, MRI) to assess vertebral involvement and any structural changes. Functional assessments should document range of motion and pain levels.

Common Clinical Scenarios

Patients may present with chronic back pain following a history of dysentery, requiring orthopedic evaluation for potential surgical intervention if conservative management fails.

Billing Considerations

Documentation should specify which vertebrae are affected and the degree of functional impairment.

Rheumatology

Documentation Requirements

Rheumatologic documentation should include laboratory tests for inflammatory markers (e.g., ESR, CRP) and assessments of disease activity using tools like the BASDAI.

Common Clinical Scenarios

Patients may exhibit systemic symptoms such as fatigue and joint swelling, necessitating a comprehensive rheumatologic evaluation.

Billing Considerations

Consideration of other autoimmune conditions that may present similarly is crucial.

Physical Medicine

Documentation Requirements

Functional assessments should evaluate mobility, strength, and the need for assistive devices. Rehabilitation plans should be documented to address specific limitations.

Common Clinical Scenarios

Patients may require physical therapy to improve mobility and manage pain, focusing on strengthening and flexibility exercises.

Billing Considerations

Assessment of the patient's ability to perform activities of daily living (ADLs) is essential.

Coding Guidelines

Inclusion Criteria

Use M02.18 When
  • Follow official coding guidelines that require documentation of the prior dysentery episode, laterality if applicable, and the severity of the arthropathy
  • Ensure that the encounter type (initial, follow
  • up) is appropriately documented

Exclusion Criteria

Do NOT use M02.18 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

72148CPT Code

MRI of the lumbar spine

Clinical Scenario

Used to assess vertebral involvement in patients with postdysenteric arthropathy.

Documentation Requirements

Document indications for MRI, including symptoms and prior treatments.

Specialty Considerations

Orthopedic and rheumatologic evaluations may necessitate imaging to guide treatment.

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 postdysenteric arthropathy. This specificity aids in better understanding the epidemiology and treatment outcomes of the condition.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, including postdysenteric arthropathy. This specificity aids in better understanding the epidemiology and treatment outcomes of the condition.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding musculoskeletal conditions, including postdysenteric arthropathy. This specificity aids in better understanding the epidemiology and treatment outcomes of the condition.

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 postdysenteric arthropathy?

Common symptoms include lower back pain, stiffness, reduced range of motion, and discomfort during movement, often following a dysentery episode.