ACDIS CCDS-O Exam Details & Actual Exam Questions

  • Exam Code/Number: CCDS-O
  • Exam Name/Title: Certified Clinical Documentation Specialist-Outpatient
  • Certification Provider: ACDIS
  • Corresponding Certification: Clinical Documentation Specialist
  • Exam Questions: 137
  • Updated On: Jun,28 2026
  • Certification Level: Specialist

ACDIS Certified Clinical Documentation Specialist-Outpatient Exam Questions

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ACDIS CCDS-O Exam Overview:

Certification Vendor:ACDIS
Exam Name:Certified Clinical Documentation Specialist-Outpatient (CCDS-O) Exam
Exam Number:CCDS-O
Real Exam Qty:140 (120 scored, 20 unscored)
Certificate Validity Period:2 years
Exam Price:$280 (ACDIS members), $380 (non-members), +$100 international fee
Available Languages:English
Related Certifications:Certified Clinical Documentation Specialist (CCDS)
Exam Format:Multiple-choice questions, Computer-based, Remotely proctored or test center delivery
Passing Score:85 out of 120 scored questions
Exam Duration:150 minutes
Sample Questions:ACDIS CCDS-O Sample Questions
Exam Way:Computer-based testing at Prometric centers or remote proctoring via ProProctor
Pre Condition:RN, MD, DO, or HIM/coding certification (RHIA, RHIT, CCS, CPC, CRC, COC) + 2 years outpatient CDI experience; OR 1 year outpatient + 1 year inpatient CDI experience; minimum 2,000 hours per year
Official Syllabus URL:https://acdis.org/certification/ccds-o

ACDIS CCDS-O Exam Syllabus Topics:

SectionWeightObjectives
CDI Program Concepts, Queries, and Quality20%- Problem list maintenance, provider education, and program operations
- Compliant query development: principles, structure, and non-leading language
- Regulatory compliance: HIPAA, OIG work plan, confidentiality
- CDI metrics: query rates, capture rates, quality scores, denial prevention
Clinical Conditions, Pathophysiology, and Chart Review20%- Differentiating acute vs chronic, active vs historical conditions
- Clinical indicators, diagnostic tests, medications, and documentation triggers
- Disease processes across all body systems and documentation relevance
Healthcare Regulations, Reimbursement, and Documentation Requirements35%- Outpatient Prospective Payment System (OPPS) and Ambulatory Payment Classifications (APCs)
- Official Guidelines for Coding and Reporting (OCG) for ICD-10-CM
  • 1. Coding guidelines for all ICD-10-CM chapters
  • 2. Core concepts of first-listed diagnosis
- Provider coding and billing: CPT, Evaluation and Management (E/M), Medicare Physician Fee Schedule
- Alternative payment models: ACO, MSSP, MACRA/MIPS
Risk Adjustment Models and Documentation Impact25%- Hierarchies, disease interactions, and compliant HCC reporting
- Medicare Advantage payment structure and documentation requirements
- CMS-HCC model fundamentals and RAF scoring
- RADV audit concepts and documentation compliance


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