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 CodesM08.1

M08.1

Billable

Juvenile ankylosing spondylitis

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

Code Description

ICD-10 M08.1 is a billable code used to indicate a diagnosis of juvenile ankylosing spondylitis.

Key Diagnostic Point:

Juvenile ankylosing spondylitis (JAS) is a chronic inflammatory disease primarily affecting the axial skeleton, characterized by inflammation of the sacroiliac joints and spine. It typically presents in adolescents and young adults, often leading to progressive stiffness and pain in the lower back and hips. Anatomically, the condition involves the sacroiliac joints, lumbar spine, and can extend to the thoracic spine and cervical spine. Pathophysiologically, JAS is associated with the HLA-B27 antigen and is characterized by enthesitis, where inflammation occurs at the sites where tendons and ligaments attach to bone. Clinically, patients may experience reduced spinal mobility, postural changes, and systemic symptoms such as fatigue. Early diagnosis and management are crucial to prevent long-term disability and improve quality of life.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of axial skeleton anatomy and pathology.
  • Differentiation from other spondyloarthropathies.
  • Documentation of disease activity and functional impairment.
  • Need for interdisciplinary collaboration in treatment planning.

Audit Risk Factors

  • Inadequate documentation of disease severity and functional limitations.
  • Failure to document the presence of HLA-B27 antigen.
  • Misclassification of juvenile idiopathic arthritis versus JAS.
  • Lack of comprehensive treatment plans in documentation.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Orthopedic documentation should include imaging studies (X-rays, MRI) showing sacroiliitis, functional assessments (e.g., range of motion), and treatment plans including physical therapy.

Common Clinical Scenarios

Common scenarios include surgical interventions for severe spinal deformities or joint replacements in advanced cases.

Billing Considerations

Joint-specific considerations include monitoring for hip involvement and assessing spinal mobility.

Rheumatology

Documentation Requirements

Rheumatologic documentation must include inflammatory markers (ESR, CRP), disease activity scores (BASDAI), and patient-reported outcomes.

Common Clinical Scenarios

Autoimmune scenarios may involve managing comorbidities such as uveitis or psoriasis.

Billing Considerations

Systemic involvement should be documented, particularly in cases of extra-articular manifestations.

Physical Medicine

Documentation Requirements

Functional assessments should include mobility evaluations and rehabilitation goals tailored to the patient's needs.

Common Clinical Scenarios

Rehabilitation scenarios may involve physical therapy for pain management and improving range of motion.

Billing Considerations

Mobility limitations and the need for assistive devices should be clearly documented.

Coding Guidelines

Inclusion Criteria

Use M08.1 When
  • 10 coding guidelines for M08
  • 1 require documentation of laterality if applicable, severity of the condition, and the type of encounter (initial, follow
  • up, etc
  • It is essential to document any associated conditions or complications

Exclusion Criteria

Do NOT use M08.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99214CPT Code

Established patient office visit, moderate complexity

Clinical Scenario

Used for follow-up visits to manage JAS and assess treatment efficacy.

Documentation Requirements

Documentation must include history, examination findings, and treatment plan.

Specialty Considerations

Rheumatology and orthopedics may require additional details on joint involvement and functional status.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding juvenile ankylosing spondylitis, 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 juvenile ankylosing spondylitis, enabling better tracking of disease prevalence and treatment outcomes.

Reimbursement & Billing Impact

reimbursement and quality reporting.

Resources

Clinical References

  • •
    American College of Rheumatology Guidelines for Spondyloarthritis

Coding & Billing References

  • •
    American College of Rheumatology Guidelines for Spondyloarthritis

Frequently Asked Questions

What are the key symptoms of juvenile ankylosing spondylitis?

Key symptoms include chronic lower back pain, stiffness, particularly in the morning, reduced spinal mobility, and potential involvement of peripheral joints. Patients may also experience systemic symptoms such as fatigue and inflammation.