5.2 Organizational Models, Inpatient/Outpatient Scope & Staffing
Key Takeaways
Define the program’s settings, population, work, authority, and interfaces before selecting its reporting structure.
Assess demonstrated competencies and role requirements; professional backgrounds can complement each other without creating exclusive national job assignments.
Outpatient CDI includes encounter accuracy and other documentation needs as well as selected risk-adjustment work; it is not synonymous with HCC recapture.
CMS-HCC Medicare Advantage, HHS-HCC marketplace, and Shared Savings Program rules differ; do not apply a universal January 1 reset or payment script.
Estimate staffing from consistently defined review and nonreview work, then test workload, accuracy, coverage, and burden locally.
5.2 Organizational Models, Inpatient/Outpatient Scope & Staffing
Design a CDI program from the work it must perform. Define the settings, populations, documentation problems, interfaces, and available expertise before deciding where the department reports or how many records each person should review. A reporting line or credential can support the work, but neither guarantees documentation quality or a particular physician response.
Define the scope before choosing the structure
A program charter should answer practical questions:
- Which facilities, services, encounters, and payer populations are included?
- Is review concurrent, retrospective, prospective to a visit, or a defined combination?
- Who identifies an issue, communicates with the provider, assigns codes, and resolves a disagreement?
- What information must be available, and how will an unanswered clarification be handled?
- How will the program measure accuracy, workflow burden, coverage, and outcomes?
The AHIMA CDI ethical standards apply across settings and emphasize accurate reporting, education, and collaboration. Use those obligations as design requirements. Expanding the work should not change the requirement for supported documentation or turn a possible financial effect into the desired provider answer.
Compare organizational options through their interfaces
CDI can be housed with HIM, quality or medical affairs, revenue cycle, or a separate operational unit. The following are potential design considerations, not fixed rankings of departments or proof that one model has lower compliance risk.
| Reporting option | Useful connection to develop | Interface that still needs explicit ownership |
|---|---|---|
| HIM | Coding resources, classification expertise, and coding-review workflows | Clinical-provider engagement and quality collaboration |
| Quality or medical affairs | Clinical education and review of documentation used in quality work | Coding, claim-release, and financial-analysis processes |
| Revenue cycle | Billing workflow, resource planning, and financial analysis | Clinical independence, neutral queries, and quality collaboration |
| Separate or shared operational governance | Coordination across several organizational priorities | Clear authority, escalation, budget ownership, and accountability |
For example, a system placing CDI within quality could designate coding and CDI leads to resolve classification questions and assign a billing owner for hold/release decisions. A program under revenue cycle could retain a clinical-advisor relationship and independent query-quality review. Those controls address the actual interfaces; changing a box on an organization chart does not eliminate the need for them.
Choose the structure by examining local problems, existing relationships, decision authority, and resources. Avoid unsupported claims that physicians invariably trust one reporting line, that a particular department has inherently high fraud risk, or that a separate department automatically balances every interest.
Staff for demonstrated competencies
A team needs clinical-record interpretation, coding and classification knowledge, compliant query construction, provider communication, quality-measure literacy, and data analysis. People enter CDI from several professional backgrounds. Assess what each individual can perform and what training, supervision, and applicable scope requirements the assigned role needs.
| Competency | Evidence to assess | Example development need |
|---|---|---|
| Clinical-record interpretation | Ability to explain the documented course and identify a genuine ambiguity | Supervised reviews in an unfamiliar specialty |
| Coding and classification | Accurate application of current conventions, complete codes, and setting rules | Focused CM/PCS or outpatient instruction |
| Query practice | Neutral, record-supported communication and correct response handling | Review of complete queries and feedback on missed context |
| Collaboration | Clear discussion of a disagreement and appropriate escalation | Shared case review with coding or clinical leaders |
| Measurement | Correct definitions, denominators, versions, and interpretation | Supported dashboard and audit work |
Clinical experience and HIM education can provide complementary preparation, but they do not create exclusive national job assignments. An RN may perform coding work when qualified and assigned to do so; a coding professional can develop clinical-review expertise. Prior medical training likewise does not automatically authorize a person to act as the treating provider. In the CDI role, reviewers identify documentation questions and seek appropriate clarification rather than independently establishing diagnoses from test results.
A paired clinical/coding review can be a useful local training or review design. Define each participant's responsibilities and evaluate whether it improves accuracy and timeliness. It does not guarantee that every discrepancy disappears, and it is not the only acceptable staffing arrangement.
Match review to the setting and actual use of the data
Inpatient review may address the after-study principal diagnosis, reportable secondary diagnoses, procedures, POA, and the applicable grouping system. Outpatient and ambulatory review can address current encounter accuracy, diagnostic specificity, medical necessity documentation, procedures or services, and selected quality or risk-adjustment needs. Outpatient CDI is broader than HCC review.
Apply the current CM guidelines for the setting. In outpatient encounters, uncertainty is not treated as confirmed diagnosis under the hospital inpatient uncertainty rule. Ongoing chronic conditions may be reported when the applicable encounter-reporting requirements are met; a condition's presence on an old problem list does not establish its current reportability.
Distinguish payment and risk-adjustment arrangements:
| Context | What the program must understand |
|---|---|
| An inpatient DRG-based claim | Encounter coding and full-claim grouping under the applicable release |
| Medicare Advantage CMS-HCC risk adjustment | Eligible diagnostic data, model and segment, data-collection period, hierarchies, and payment-year rules |
| HHS-HCC marketplace risk adjustment | The applicable benefit-year models, eligible data and filtering, and the distinct plan-transfer methodology |
| Shared Savings Program ACO work | The applicable quality, expenditure, benchmark, and program methodology rather than an assumed payment for each added diagnosis |
| Other outpatient services | The relevant service-coding, documentation, coverage, and payer rules, even when no HCC project is involved |
CMS's Medicare Advantage risk-adjustment report describes a prospective model using base-year health information and demographics to predict later expenditures. Related conditions can be subject to hierarchies, and not all categories are payment categories. The CY2026 final announcement separately specifies that year's eligible diagnostic sources and model use. These features cannot be represented as every patient's RAF becoming zero on January 1 or every repeated diagnosis adding payment.
The 2026 HHS-HCC instructions describe concurrent models and transfers within the applicable state market risk pool. They explicitly distinguish their categories from Medicare Part C HCCs. The Shared Savings Program overview describes possible performance payments connected to quality and spending. Consequently, an ambulatory expansion needs the actual program rules, not one universal annual-recapture script.
Select a workflow suited to the task
Prospective review can identify matters a provider may need to assess at a forthcoming visit. Concurrent review can address ambiguity while care is occurring. Retrospective review can identify unresolved documentation or coding issues after the encounter. None permits unsupported diagnoses or a predetermined response. Follow the 2026 query brief for the communication and incorporation of responses.
Specialty assignments need relevant preparation. A surgical project may require operative-report and PCS expertise; pediatric work may require age-specific clinical and classification knowledge; an emergency-department project may require careful attention to setting and coordination with utilization review. The CDI assignment does not itself decide a patient's admission status or guarantee coverage.
Remote and hybrid designs should preserve secure record access, timely communication, escalation, and review quality. Decide how staff can reach providers and coding partners, how work is handed off, and how training and feedback occur. An on-site liaison day or virtual huddle can be a local option rather than a mandatory national staffing rule.
Estimate capacity from the defined work
The ACDIS productivity discussion presents differing organizations' methods and definitions. Such experience is useful for comparison but does not establish one national quota for every shift, service, or reviewer.
Separate initial reviews, follow-up reviews, query preparation and follow-up, reconciliation, education, audits, and nonreview duties. Define whether query work is already included in a review-time estimate. Count the work consistently before comparing teams.
Illustrative capacity estimate: An eight-hour shift has 480 minutes. Assume 150 minutes are allocated to other duties and breaks, leaving 330 for the specified review and query work. Ten initial reviews at 18 minutes require 180 minutes; 12 follow-ups at eight minutes require 96 minutes; separate query work requires 30 minutes. Planned work totals 306 minutes, leaving 24 minutes within that allocation. These are hypothetical local time estimates, not an AHIMA or ACDIS standard.
Test estimates in actual work and monitor accuracy, missed coverage, backlog, and burden as well as volume. Account for absence coverage, onboarding, complex cases, and time spent correcting tool suggestions. Technology may change the work, but its presence does not establish a guaranteed productivity increase. Revise staffing from measured workload and quality rather than importing an unsupported cases-per-day target.
A health system places CDI under quality leadership while retaining its existing coding and billing departments. Which implementation choice addresses the program’s cross-department needs?
Assume quality alignment makes coding collaboration unnecessary because the reporting line establishes clinical accuracy.
Replace the code-set rules with the quality department’s preferred outcome whenever they produce different classifications.
Remove billing and resource measures from program review because a quality reporting line excludes operational responsibilities.
Define interfaces with coding and billing, clinical support, escalation, and release authority while preserving neutral documentation practice.
A CDI team includes an RN experienced in coding review and an HIM professional with substantial clinical-review experience. How should a manager allocate work?
Assess demonstrated competencies, training needs, assigned responsibilities, and applicable scope rather than assuming exclusive duties from credentials.
Prevent the RN from any coding work solely because all national coding functions are legally reserved to HIM credential holders.
Prevent the HIM professional from identifying clinical-documentation questions because clinical-review skills cannot be acquired by coding staff.
Allow either reviewer to establish undocumented diagnoses directly from tests because their combined experience replaces provider clarification.
An ambulatory program is expanding work on Medicare Advantage risk adjustment. Which planning principle is accurate?
Every patient’s total risk score becomes zero on January 1, so every prior diagnosis must be copied into the current record.
Use eligible diagnostic data, applicable model and segment, data-collection and payment periods, and current encounter-reporting rules.
Treat the HHS-HCC marketplace model as the identical Medicare Advantage model because both use the abbreviation HCC.
Count every repeated diagnosis as an additional payment factor because hierarchies do not affect related conditions.
Sections you finish are checked off in the contents.