#415: Emergency Medicine: Emergency Department Utilization of CT for Minor Blunt Head Trauma for Patients Aged 18 Years and Older

Quality ID


High Priority Measure




Measure Type



Emergency Medicine

Measure description

Percentage of emergency department visits for patients aged 18 years and older who presented within 24 hours of a minor blunt head trauma with a Glasgow Coma Scale (GCS) score of 15 and who had a head CT for trauma ordered by an emergency care provider who have an indication for a head CT



This measure is to be submitted for each denominator eligible visit for patients aged 18 years and older who present to the emergency department with a minor blunt head trauma during the performance period. It is anticipated that eligible clinicians who provide care in the emergency department will submit this measure.

Measure Submission:

The listed denominator criteria is used to identify the intended patient population. The numerator options included in this specification are used to submit the quality actions allowed by the measure. The quality-data codes listed do not need to be submitted for registry submissions; however, these codes may be submitted for those registries that utilize claims data.



All emergency department visits for patients aged 18 years and older who presented within 24 hours of a minor blunt head trauma with a Glasgow Coma Scale (GCS) score of 15 and who had a head CT for trauma ordered by an emergency care provider*

DENOMINATOR NOTE: *This measure looks to determine if an emergency care provider ordered head CT services typically provided under CPT code 70450.


Presented within 24 hours – The 24 hour timeframe is based on the time of injury reported by the patient or caregiver or guardian

Minor Blunt Head Trauma – Includes only non-penetrating injuries

Denominator Criteria (Eligible Cases):

Patients aged ≥ 18 years on date of encounter


Diagnosis for minor blunt head trauma (ICD-10-CM): S00.03XA, S00.33XA, S00.431A, S00.432A, S00.439A, S00.531A, S00.532A, S00.83XA, S00.93XA, S02.0XXA, S02.101A, S02.102A, S02.109A, S02.110A, S02.111A, S02.112A, S02.113A, S02.118A, S02.119A, S02.11AA, S02.11BA, S02.11CA, S02.11DA, S02.11EA, S02.11FA, S02.11GA, S02.11HA, S02.19XA, S02.2XXA, S02.30XA, S02.31XA, S02.32XA, S02.400A, S02.401A, S02.402A, S02.40AA, S02.40BA, S02.40CA, S02.40DA, S02.40EA, S02.40FA, S02.411A, S02.412A, S02.413A, S02.42XA, S02.600A, S02.601A, S02.602A, S02.609A, S02.610A, S02.611A, S02.612A, S02.620A, S02.621A, S02.622A, S02.630A, S02.631A, S02.632A, S02.640A, S02.641A, S02.642A, S02.650A, S02.651A, S02.652A, S02.66XA, S02.670A, S02.671A, S02.672A, S02.69XA, S02.80XA, S02.81XA, S02.82XA, S02.91XA, S02.92XA, S06.0X0A, S06.0X1A, S06.0X9A, S06.1X0A, S06.1X1A, S06.1X2A, S06.1X3A, S06.1X4A, S06.1X9A, S06.2X0A, S06.2X1A, S06.2X2A, S06.2X3A, S06.2X4A, S06.2X9A, S06.300A, S06.301A, S06.302A, S06.303A, S06.304A, S06.309A, S06.340A, S06.341A, S06.342A, S06.343A, S06.344A, S06.349A, S06.350A, S06.351A, S06.352A, S06.353A, S06.354A, S06.359A, S06.360A, S06.361A, S06.362A, S06.363A, S06.364A, S06.369A, S06.4X0A, S06.4X1A, S06.4X2A, S06.4X3A, S06.4X4A, S06.4X9A, S06.5X0A, S06.5X1A, S06.5X2A, S06.5X3A, S06.5X4A, S06.5X9A, S06.6X0A, S06.6X1A, S06.6X2A, S06.6X3A, S06.6X4A, S06.6X9A, S06.810A, S06.811A, S06.812A, S06.813A, S06.814A, S06.819A, S06.820A, S06.821A, S06.822A, S06.823A, S06.824A, S06.829A, S06.890A, S06.891A, S06.892A, S06.893A, S06.894A, S06.899A, S06.9X0A, S06.9X1A, S06.9X2A, S06.9X3A, S06.9X4A, S06.9X9A, S09.10XA, S09.11XA, S09.19XA, S09.8XXA, S09.90XA, S09.92XA, S09.93XA, S10.0XXA, S10.83XA, S10.93XA


Patient encounter during the performance period (CPT): 99281, 99282, 99283, 99284, 99285


Patient presented within 24 hours of a minor blunt head trauma with a GCS score of 15 and had a head CT ordered for trauma by an emergency care provider: G9530



Patient has documentation of ventricular shunt, brain tumor, multisystem trauma, pregnancy, or is currently taking an antiplatelet medication including: ASA/dipyridamole, clopidogrel, prasugrel, ticlopidine, ticagrelor, or cilostazol: G9531



Emergency department visits for patients who have an indication for a head CT


Indications for a head CT in patients presenting to the emergency department for minor blunt head trauma -

Patients with any one of the following:

  • Severe headache
  • Vomiting
  • Age 65 years and older
  • Physical signs of a basilar skull fracture (signs include haemotympanum, "raccoon" eyes, cerebrospinal fluid leakage from the ear or nose, Battle's sign)
  • Focal neurological deficit
  • Coagulopathy
  • Thrombocytopenia
  • Currently taking any of the following anticoagulant medications*: apixaban, argatroban, bivalirudin, dabigatran, dalteparin, desirudin, enoxaparin, fondaparinux, heparin, lepirudin, low molecular weight heparin, rivaroxaban, tinzaparin, warfarin
  • Dangerous mechanism of injury (i.e., ejection from a motor vehicle, a pedestrian struck, and a fall from a height of more than 3 feet or 5 stairs)


Patients with either loss of consciousness OR posttraumatic amnesia AND any one of the following:

  • Headache
  • Age 60 years and older, and less than 65 years
  • Drug/alcohol intoxication
  • Short-term memory deficits
  • Evidence of trauma above the clavicles (physical location, any trauma to the head or neck [i.e., laceration, abrasion, bruising, ecchymosis, hematoma, swelling, fracture])
  • Posttraumatic seizure

*The aforementioned list of medications/drug names is based on clinical guidelines and other evidence and may not be all-inclusive or current. Physicians and other health care professionals should refer to the FDA's web site page entitled "Drug Safety Communications" for up-to-date drug recall and alert information when prescribing medications. As part of the measure maintenance process, the measure and specifications will be updated routinely to account for newly released and FDA approved pharmacologic agents.

Numerator Options:

Performance Met: Patient with minor blunt head trauma had an appropriate indication(s) for a head CT (G9529)


Performance Not Met: Patient with minor blunt head trauma did not have an appropriate indication(s) for a head CT (G9533)

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