ACDIS CCDS study materials
ACDIS CCDS study resources

ACDIS CCDS study plan

ACDIS CCDS · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Healthcare delivery systems and reimbursement methodologies (including the Inpatient Prospective Payment System)

  • Diagram the inpatient payment pathway from discharge through MS-DRG assignment, including the role of the principal diagnosis, CC/MCCs, and the grouper

  • Differentiate MS-DRG, APR-DRG, and the outpatient APC/OPPS frameworks, and state which care settings use each

  • Compute adjusted inpatient payment for 10 scenarios using base rate, wage index, IME, DSH/UC, and outlier adjustments

  • Explain the two-midnight rule, inpatient certification requirements, and observation status, and identify the documentation implications of each

  • Assemble a glossary of 30 reimbursement terms with a one-line definition and a note on how each shows up in chart review

Your checkpoint

One-page IPPS payment-flow map plus 10 worked payment calculations, scored at 90% or better against an answer key

Week 2

Clinical foundations: anatomy and physiology, pathophysiology, and pharmacology

  • Label anatomy and physiology for the body systems behind the highest-volume MS-DRGs: cardiac, pulmonary, neurologic, renal, GI, and endocrine

  • Trace pathophysiology and typical clinical findings for heart failure, COPD, sepsis, CKD, diabetes with complications, and pneumonia

  • Match 40 commonly seen inpatient drugs to drug class, indication, and the adverse effect most likely to be documented

  • Correlate lab and imaging findings to clinical indicators used as severity-of-illness support in query writing

  • Distinguish a principal diagnosis, a comorbid condition, and a major comorbid condition using clinical criteria rather than habit

Your checkpoint

A 50-question clinical foundations self-quiz scored at 80% or better, plus a one-page clinical-indicator reference sheet covering 10 high-frequency diagnoses

Week 3

Medical record documentation analysis and interpretation

  • Identify the required components of a history and physical, discharge summary, consult note, and operative report, and flag which components are missing

  • Separate findings that are explicitly documented from findings that are merely implied, inferred, or carried forward from a prior note

  • Extract query-worthy documentation gaps from 12 practice chart excerpts without proposing a diagnosis in the extraction step

  • Evaluate diagnoses for specificity, acuity, and clinical validation using stated criteria

  • Reconcile conflicting documentation across the admission note, progress notes, and discharge summary and record the discrepancy

Your checkpoint

A documentation-gap log covering 12 practice chart excerpts with 30 identified gaps tagged by gap type and severity

Week 4

Official medical coding guidelines, CMS and private payer regulations

  • Apply ICD-10-CM and ICD-10-PCS Official Guidelines to select the principal diagnosis in 15 practice inpatient cases

  • Apply UHDDS definitions to distinguish principal from secondary diagnoses, and sequence diagnoses per coding conventions

  • Identify the CMS inpatient regulations that constrain CDI practice: the two-midnight rule, physician certification and recertification, and DRG validation expectations

  • Explain how the DRG validation and recovery audit processes flow back to documentation and queries

  • Construct the rationale text for each code assignment in a practice case, not just the code

Your checkpoint

A 30-case guideline application set with written rationale for every code choice, scored at 85% or better

Week 5

Medical record documentation analysis and interpretation & Physician query formulation and provider education

  • Compose queries that contain the issue, clinical indicators, documentation options, and a direction to the provider

  • Apply compliant query practice by writing non-leading, non-directive queries for 15 clinical scenarios

  • Rewrite 10 non-compliant or leading queries into compliant versions and annotate what changed

  • Select the appropriate query type - multiple choice, open-ended, or yes/no - for a given documentation gap and defend the choice

  • Format a query in a way that supports the provider in answering within one exchange

Your checkpoint

A query portfolio of 15 original compliant queries, each scored against a 10-point compliance checklist with at least 90% of points earned

Week 6

Physician query formulation and provider education & CDI program compliance, benchmarking, and performance analysis

  • Design a 20-minute provider education module on one documentation topic, built around the facility's own gap data rather than generic advice

  • Deliver the education module to a colleague or study partner and capture feedback in writing

  • Define the core CDI metrics, including case mix index, CC/MCC capture rate, query rate, query response rate, and DRG change rate, with formulas

  • Describe the elements of a CDI program's compliance infrastructure: query policies, query retention, physician advisor escalation, and audit trail

  • Differentiate a compliant CDI program from one that drives upcode behavior, and give a concrete example of each

Your checkpoint

A 20-minute provider education deck with speaker notes plus a written feedback summary from the practice delivery

Week 7

CDI program compliance, benchmarking, and performance analysis

  • Calculate six CDI metrics from a 30-record practice sample using the formulas defined in week 6

  • Interpret the variance in each metric and write a stated root cause for the largest two gaps

  • Identify the compliance and audit risk areas that a CDI program is most likely to be cited for

  • Draft a quarterly CDI audit plan covering sample size, scope, reviewer, and escalation path

  • Benchmark the practice sample's results against published industry ranges and explain any gap between them

Your checkpoint

A completed metrics workbook with six calculated metrics from a 30-record sample and a two-page written variance analysis with recommendations

Week 8

Healthcare delivery systems and reimbursement methodologies (including the Inpatient Prospective Payment System) & Clinical foundations: anatomy and physiology, pathophysiology, and pharmacology & Medical record documentation analysis and interpretation & Official medical coding guidelines, CMS and private payer regulations & Physician query formulation and provider education & CDI program compliance, benchmarking, and performance analysis

  • Complete two timed full-length practice exams under exam conditions

  • Classify every missed item by domain and root cause - knowledge gap, misread item, or process error

  • Re-study only the two weakest domains using the root-cause log rather than a full re-read

  • Recite the compliant query elements and the CDI metric formulas from memory without notes

  • Build a one-page exam-day reference sheet limited to items you missed at least twice

Your checkpoint

Two scored full-length practice exams, with the second at 85% or better, plus a one-page error log mapping every miss to a domain and root cause

Milestones

Week 4: Score 80% or better on a 40-question cumulative check covering domains 1 through 4, with no domain below 70%

Week 6: Produce 15 compliant queries and a deliverable education module, and state all six CDI metric formulas from memory without notes

Week 8: Score 85% or better on a timed full-length practice exam, with the error log showing every miss assigned to a domain and root cause