American College Of Surgeons - Inspiring Quality: Highest Standards, Better Outcomes

Frequently Asked Questions

Welcome to the NTDS FAQ section! We have compiled frequently asked questions about the National Trauma Data Standard (NTDS) and its data element definition for your reference. After noting the year of the NTDS Data Dictionary that you wish to review, click the appropriate link to navigate to the topic or data element to find out more information.

2019 NTDS Data Dictionary

(Revised December 2018)


NTDS Patient Inclusion Criteria (pg. iv & v)


Injury Information

Protective Devices (pg. 28)

Protective Devices; Airbag Deployment (pgs. 28 & 29)

Pre-Hospital Information

Initial Field Systolic Blood Pressure (pg. 43)

Initial Field Systolic Blood Pressure; Initial Field Pulse Rate; Initial Field Respiratory Rate; Initial Field Oxygen Saturation; Initial Field GCS—Eye, Verbal, Motor, Total; Initial Field GCS 40—Eye, Verbal, Motor (pgs. 43-53)

Initial Field GCS 40—Eye, Verbal, Motor (pgs. 51-53)

Inter-Facility Transfer (pg. 54)

Trauma Center Criteria (pg. 55)

Vehicular, Pedestrian, Other Risk Injury (pg. 56)

Trauma Center Criteria; Vehicular, Pedestrian, Other Risk Injury (pgs. 55 & 56)

Emergency Department Information

Initial ED/Hospital Systolic Blood Pressure (pg. 61)

Initial ED/Hospital Temperature (pg. 63)

Initial ED/Hospital Respiratory Rate (pg. 64)

Initial ED/Hospital GCS Assessment Qualifiers (pg. 72)

Initial ED/Hospital GCS 40-Eye; Initial ED/Hospital GCS 40-Verbal; Initial ED/Hospital GCS 40-Motor (pgs. 73–75)

Initial ED/Hospital Height; Initial ED/Hospital Weight (pgs. 76 & 77)

Drug Screen (pg. 78)

ED Discharge Disposition

Signs of Life (pg. 82)

ED Discharge Date; ED Discharge Time (pgs. 83 & 84)

Hospital Procedure Information

ICD-10 Hospital Procedures (pgs. 86 & 87)

Pre-Existing Conditions

Miscellaneous (pgs. 90–115)

Advanced Directive Limiting Care (pg. 91)

Alcohol Use Disorder (pg. 92)

Bleeding Disorder (pg. 96)

Current Smoker (pg. 103)

Functionally Dependent Health Status (pg. 108)

Hypertension (pg. 109)

Mental/Personality Disorders (pg. 110)

Peripheral Arterial Disease (PAD) (pg. 112)

Substance Abuse Disorder (pg. 115)

Diagnosis Information

ICD-10 Injury Diagnoses (pg. 117)

AIS Predot Code; AIS Severity (pgs. 118 & 119)

AIS Version (pg. 120)

Hospital Events

Acute Kidney Injury (AKI) (pg. 122)

Alcohol Withdrawal Syndrome (pg. 125)

Cardiac Arrest with CPR (pg. 126)

Catheter-Associated Urinary Tract Infection (CAUTI) (pgs. 127 & 128)

Deep Vein Thrombosis (DVT) (pg. 133)

Pressure Ulcer (pg. 141)

Unplanned Admission to ICU (pg. 147)

Unplanned Intubation (pg. 148)

Unplanned Return to the Operating Room (pg. 149)

Ventilator-Associated Pneumonia (VAP) (pgs. 150–154)

Outcome Information

Total ICU Length of Stay (pgs. 156 & 157)

Total Ventilator Days (pgs. 158 & 159)

Hospital Discharge Date; Hospital Discharge Time (pgs. 160 & 161)

Hospital Discharge Disposition (pgs. 162 & 163)

Measures for Processes of Care

(Level 1, 2, and Pediatric TQIP Participants ONLY)

Collection Criterion: Collect on patients with at least one injury in AIS head region, excluding patients with isolated scalp abrasion(s), scalp contusion(s), scalp laceration(s) and/or scalp avulsion(s)

Highest GCS Total (pg. 167)

Initial ED/Hospital Pupillary Response (pg. 174)

Midline Shift (pg. 175)

Collection Criterion: Collect on all patients

Venous Thromboembolism Prophylaxis Type (pg. 179)

Collection Criterion: Collect on all patients with transfused packed red blood cells within first 4 hours after ED/hospital arrival

Angiography; Embolization Site; Surgery for Hemorrhage Control Type (pgs. 195, 196, & 199)

Surgery for Hemorrhage Control Type (pg. 199)

Collection Criterion: Collect on all patients with any open fracture(s)

Miscellaneous (pgs. 205–207)

Antibiotic Therapy (pg. 205)