4AT (Rapid Assessment Test for Delirium)ACS-NSQIP Surgical Risk Calculator AD8 Dementia Screening Anticholinergic Burden Score (ACB)Barthel Index Beers Criteria (PIMs)Berg Balance Scale Braden Scale CAM — Confusion Assessment Method Clinical Dementia Rating (CDR)Clinical Frailty Scale (CFS)Clock Drawing Test (CDT)Cornell Scale for Depression (CSDD)DOSS (Delirium Observation Screening Scale)DRS-R-98 (Delirium Rating Scale)Drug Burden Index (DBI)Edmonton Frail Scale (EFS)FRAIL Scale Fried Frailty Phenotype Functional Independence Measure (FIM)Functional Reach Test Geriatric Depression Scale (GDS-15)Groningen Frailty Indicator (GFI)HELP Score (Postoperative Delirium Risk)Hendrich II Fall Risk Model ICIQ-UI SF interRAI Clinical Assessment IQCODE Katz Index of Independence in ADLs Lawton Instrumental ADL Scale mFI-5 Preoperative Frailty Mini Nutritional Assessment (MNA) - Full Mini-Cog MMSE MNA-SF (Short Form)Morse Fall Scale MUST (Malnutrition Universal Screening Tool)Norton Scale OAB-V8 OST (Osteoporosis Screening Tool)OSTA (Osteoporosis Self-Assessment Tool for Asians)Six-Item Screener (SIS)SPMSQ STOPP/START Criteria STRATIFY Risk Assessment Tool Timed Up and Go (TUG) Test Triage Risk Screening Tool (TRST)Waterlow Score

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ACS-NSQIP Surgical Risk Calculator

External Tool Required: The ACS-NSQIP is a proprietary predictive algorithm based on millions of surgical records. Due to its dynamic database and complex proprietary weighting, it must be accessed directly via the official American College of Surgeons portal.

Open Official ACS-NSQIP Calculator

Required Inputs

CPT Code of the planned procedure

Demographics (Age group, Sex)

Functional Status (Independent, Partially Dependent, Totally Dependent)

ASA Class (I to V)

Systemic Disease (Diabetes, Hypertension, CHF, Ascites, Sepsis)

Pulmonary Status (Dyspnea, Ventilator dependence, COPD/Smoking)

Renal Status (Acute renal failure, Dialysis)

Malignancy (Disseminated cancer, Steroid use)

Surgeon Adjustment Score

Predicted Outcomes

Severe Complication

Any Complication

Pneumonia

Cardiac Complication

Surgical Site Infection

Urinary Tract Infection

Venous Thromboembolism

Renal Failure

Readmission

Return to OR

Death (Mortality)

Discharge to Nursing or Rehab Facility

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

Preoperative counseling and shared decision-making for adults undergoing surgery.

Providing highly individualized risk estimates (e.g., "Your risk of pneumonia is 14%, compared to the average of 2%").

Surgical quality improvement and audit benchmarking.

The Gold Standard

The ACS-NSQIP calculator is the most robust surgical risk tool in the world. It utilizes a constantly updated database of millions of procedures from hundreds of participating hospitals to generate procedure-specific risk profiles.

Related Scores in Practice

In clinical practice, this assessment is frequently evaluated alongside other validated measures. Depending on the patient's presentation and specific diagnostic requirements, you may also need to utilize the mFI-5 Preoperative Frailty or the Clinical Frailty Scale (CFS) to formulate a comprehensive care plan.

Last Comprehensive Review: 2026