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risk adjusted cost

rsk_adj_cst_amt
quality·Updated Jun 23, 2026

Definition

ISO-11179 Definition

The healthcare expenditure for a patient population normalized to account for differences in member health status and clinical complexity using risk adjustment models, enabling fair comparison of cost efficiency across providers serving populations with different acuity levels. Risk adjusted cost prevents the misleading conclusion that providers serving healthier populations are more efficient than those serving complex patients — by controlling for risk, cost comparisons reflect true efficiency differences rather than patient selection effects. CMS uses HCC risk scores to calculate risk-adjusted per capita expenditure for ACO performance measurement, ensuring that ACOs serving higher-complexity populations receive appropriately higher benchmarks.

Commercial value based contracts apply prospective risk adjustment using diagnostic cost grouper models or HCC-based risk scores. Healthcare data teams calculate rsk_adj_cst_amt by dividing actual expenditure by the average risk score of the population, effectively converting all populations to a common risk-equivalent basis for meaningful cost comparison across provider groups and performance periods.

Standard Abbreviation

rsk_adj_cst_amt

Category

quality

Production DDL — FACT_QUALITY_MEASURE

FACT_QUALITY_MEASURE.sql
CREATE OR REPLACE TABLE FACT_QUALITY_MEASURE (
    qlty_key        INTEGER        NOT NULL  -- surrogate key,
    mbr_key         INTEGER        NOT NULL  -- FK to DIM_MEMBER,
    plan_key        INTEGER        NOT NULL  -- FK to DIM_PLAN,
    meas_yr         SMALLINT                 -- measurement year,
    hedis_meas_cd   VARCHAR(20)              -- HEDIS measure code,
    denom_ind       CHAR(1)                  -- denominator eligible,
    numer_ind       CHAR(1)                  -- numerator met,
    excl_ind        CHAR(1)                  -- exclusion indicator,
    gap_open_ind    CHAR(1)                  -- care gap open,
    star_rtg_nbr    DECIMAL(3,1)             -- star rating,
    qlty_scr        DECIMAL(5,2)             -- quality score,
    perf_thrsh_pct  DECIMAL(5,2)             -- performance threshold,
    raf_scr         DECIMAL(10,3)            -- risk adjustment factor,
    outreach_cnt    SMALLINT                 -- outreach attempts,
    load_dt         TIMESTAMP_NTZ  NOT NULL  -- load timestamp
);

Standard Snowflake DDL for the canonical quality table. Convert to BigQuery or Databricks →

Why This Term Matters

Quality measure data determines how payers and providers are rated and reimbursed under CMS Stars, HEDIS, and value-based care contracts. Data engineers who understand quality terminology build measure calculation pipelines that correctly attribute patients, apply denominator exclusions, and flag documentation gaps before submission deadlines. Incorrect quality data directly affects star ratings, pay-for-performance bonuses, and Medicare Advantage plan bids.

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