Risk Adjustment Flashcards
Factors when building a clinical algorithm
- Diagnoses
- Source of the diagnosis (claims, lab values, medical charts, etc.)
- If source is claims, what claims should be considered?
- If claim contains more than one diagnosis, how many diagnoses will be considered for identification?
- Over what time span will a diagnosis have to appear to be incorporated in the algortihm?
- What procedures may help determine the level of severity of diagnosis?
- What prescription drugs may be used to identify conditions?
Challenges when constructing a condition-based model
- Impact of co-morbidities for conditions often found together
- Type of benefit design underlying the data
- Degree of certainty with which the diagnosis has been identified
- Extent of “coverage” of the data (e.g. self-reported data may not be complete)
- Level of severity at which to recognize the condition
- Large number and different types of codes for procedures and drugs
HINT: CB DESC (Condition Based Description)
Definitions of sensitivity and specificity
When building clinical identification algorithms, the proper balance between sensitivity and specificity must be found.
- Sensitivity - the percentage of members correctly identified as having a condition (“true positives”)
- Specificity - the percentage of members correctly identified as not having a condition (“true negatives”)
External sources of clinical identification algorithms
- NCQA/HEDIS
- Population Health Alliance
- CMS
- Quality reporting and improvement organizations
- Grouper models
- Literature
Uses of HEDIS data
- Select the best health plan for their needs (by employers, consultants, and consumers)
- Health plans seeking accreditation
- Plans participating in Medicare must submit data on HEDIS-developed measures of quality
- Many state governments require plans participating in Medicaid to report HEDIS data
- May be used in “Pay for Performance” programs
Major publishers of health care quality measures (used for sources of algorithms)
- National Quality Forum (NQF)
- Agency for Healthcare Research and Quality (AHRQ)
- Joint Commission
- CMS
- Hospital Quality Alliance (HQA)
- Measures Applications Partnership (MAP)
- American Medical Association Physician Consortium for Performance Improvement (PCPI)
Reasons for using commercially-available grouper models
- Building algorithms from scratch requires considerable time and work
- Models must be maintained to accommodate new codes
- Risk adjustment, providers, and plans may require a commercially available, consistent model to be used, and it must be available for review and validation
Principles of Grouper Model Design
- Diagnostic categories should be clinically meaningful
- Diagnostic categories should predict medical expenses
- Diagnostic categories should have adequate sample sizes for stable estimates
- Hierarchies should be used to characterize illness level within each disease process
- Diagnostic classification shyould encourage specific coding
- Diagnostic classification should not reward coding proliferation
- Providers should not be penalized for recording additional diagnoses
- Classification system should be internally consistent
- Diagnostic system should assign all codes (ICD-9/10)
- Discretionary diagnostic categories should be excluded
Commercially-available diagnosis-based grouper models
- DRG - case mix to hospital costs incurred
- CMS-HCC - condition categories
- HHS-HCC - ACA normalization
- CRG - Clinical Risk Groups - identifies total resources
- CDPS Chronic Illness and Disability Payment System - Adjusting payments (Medicaid, disabled, TANF)
- CDPS+Rx - Adjusting payments with Rx
- DxCG - High cost cases and profiling
- ACG - Adjusted Clinical Groups system- Uses ADGs
- MARA - More detailed level
- SCIO - Clinical classification software
- Risk/Severity - Inpatient regression
- WRA - Wakely Risk Assessment model - Transparent additive
- EGM - Medicare performance
- ETG - Episodes of Care
- MEG - Medicare Episode Groups - Medicare, disease staging
Useful dimensions of the MARA model
- Comprehensive set of risk scores by service category
- IP and ER scores correlate strongly with the probability of admission and ER events
- Individual condition profiles
- Recency of care
- Persistency of care
- Risk drivers
- Chronic and non-chronic mapping of each condition group
- Identification of issues related to frailty
Core principles of episode grouper models
Followed for the Truven Medical Episode Groups model
- Groups all care for one condition, one patient
- Describes diagnosed condition, not treated condition
- Levels of severity
- Ability for diagnosis to evolve within one episode of care
- Classifications that are clinically meaningful to providers
- Comprehensive and transparent
Types of drug grouper models
- Therapeutic class groupers - they group drugs into a hierarchy of therapeutic classes. Examples are American Hospital Formulary Service and Generic Product Identifier
- Drug-based risk adjustment models - they infer the member’s diagnosis from the therapeutic class of drugs the member uses, and generate a relative risk score. Examples are Medicaid Rx, Pharmacy Risk Groups, and RxGroups (DxCG).
Common features of Medicare prospective payment systems
- System of averages
- Increased complexity
- Relative weights
- Conversion factor
- Outliers
- Updates
- Access and Quality
Challenges with patient classification systems based on coding systems
- Need for new DRGs
- ICD Coding
- Upcoding
- New coding systems
Goals of risk adjustment for the Arizona Medicaid program
- Align payment with relative health risk of members at each health plan
- Be accurate and unbiased
- Accurate means relatively high correlation between projected and actual costs
- Unbiased means methodology should not over-compensate for some risk factors at the expense of others
- Be as simple as possible while accomplishing these goals
- Minimize the administrative burden of developing and implementing the methodology
- Be budget neutral
Medicaid costs that were excluded from weights in calibrated model (reimbursed in other ways)
- Prior Period Coverage (PPC)
- Behavior Health covered by Arizona Dept of Health Services
- Costs above reinsurance thresholds
- Children’s rehab services
- Maternity costs covered by delivery supplement
Medicaid groups that will NOT have claims based risk adjustment
- Reconciled risk groups - actual claims used to determine reimbursement
- Delivery supplemental rates - case rates paid for deliveries
- Option 1 and 2 transplant members - case rates paid for transplants
- SOBRA family planning - supplemental payments for women eligible for family planning services but not other Medicaid benefits
Categories for risk adjustment in MA
For existing enrollees:
- Community, non-dual eligible, aged
- Community, non-dual eligible, disabled
- Community, dual eligible - full benefits, aged
- Community, dual eligible - full benefits, disabled
- Community, dual eligible - partial benefits, aged
- Community, dual eligible - partial benefits, disabled
- Institutional
For new enrollees:
- Non-Medicaid and not originally disabled
- Medicaid and not originally disabled
- Non-Medicaid and originally disabled
- Medicaid and originally disabled