ACDIS CCDS study guide
ACDIS CCDS · Work through your exam, one topic at a time.
The Certified Clinical Documentation Specialist (CCDS) credential is a professional certification offered by ACDIS for clinical documentation integrity (CDI) professionals. ACDIS describes clinical documentation specialists as practitioners who draw on a wide range of specialized disciplines - anatomy and physiology, pathophysiology, and pharmacology; official medical coding guidelines together with CMS and private payer regulations related to the Inpatient Prospective Payment System; the ability to analyze and interpret medical record documentation and formulate appropriate physician queries; and the ability to benchmark and analyze clinical documentation program performance. The ACDIS CCDS study guide has 6 sections and about 2,111 words.
01Healthcare Delivery Systems and Reimbursement Methodologies (Including the Inpatient Prospective Payment System)
Medicare Part A covers inpatient hospital care, SNF, home health, hospice, and some inpatient rehabilitation; Part B covers physician services, outpatient care, durable medical equipment, and clinical laboratory tests. A CDI specialist must know which benefit category a service falls under, because that determines the payment system and the documentation rules that attach to it.
312 words, about 2 min02Clinical Foundations: Anatomy and Physiology, Pathophysiology, and Pharmacology
Clinical knowledge lets a CDI specialist recognize when documentation is incomplete or internally inconsistent. You need working familiarity across all body systems, but questions concentrate on conditions where documentation drives DRG assignment.
301 words, about 2 min03Medical Record Documentation Analysis and Interpretation
CDI work begins with knowing what the record should contain and where the authoritative statement lives. Core components: face sheet, history and physical, progress and consultation notes, operative and procedure reports, orders, nursing and ancillary notes, laboratory and imaging results, discharge summary, and the final coded summary.
286 words, about 1 min04Official medical coding guidelines, CMS and private payer regulations
ICD-10-CM and ICD-10-PCS are governed by the Official Guidelines, and questions test whether you apply them in the correct order: identify the condition, consult the alphabetic index, verify in the tabular list, then apply the conventions. "With" presumes a causal relationship unless documentation states otherwise; "code also" signals a required additional code; "see also" is a mandatory cross-reference; Excludes1 means the two codes can never be reported together, while Excludes2 means both may be reported when each is documented; "in diseases classified elsewhere" codes are always sequenced second.
618 words, about 3 min05Physician Query Formulation and Provider Education
A compliant query is clinically supported, non-leading, and answered by the physician in the record. The ACDIS/AHIMA practice brief sets the standard: present the clinical indicators from the chart (vital signs, labs, imaging, medications, nursing assessments), phrase the question so the physician can add or clarify, and avoid introducing information not in the record.
311 words, about 2 min06CDI Program Compliance, Benchmarking, and Performance Analysis
An effective CDI program balances financial performance with quality and compliance. Start with written policy: review scope, concurrent versus retrospective work, second-level review, escalation, query retention, and audit trail.
283 words, about 1 min