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per capita cost

per_cap_cst_amt
quality·Updated Jun 23, 2026

Definition

ISO-11179 Definition

The average healthcare expenditure per attributed member calculated by dividing total cost of care by the total member months in the measurement population, used as the primary financial performance metric in value based care contracts and population health management programs. Per capita cost enables fair comparison of cost performance across provider groups serving different population sizes and is the foundation for shared savings and shared losses calculations in ACO arrangements. Risk-adjusted per capita cost accounts for differences in patient complexity by applying HCC risk scores or similar models before comparing provider performance.

CMS publishes Medicare per capita expenditure benchmarks by county and ACO participant that serve as the targets against which ACO performance is measured. Healthcare data teams calculate per_cap_cst_amt by aggregating all attributed member claim payments, converting to a per-member-per-month basis, applying risk adjustment, and comparing against contract benchmarks to determine shared savings eligibility and payment amounts.

Standard Abbreviation

per_cap_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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