This value set includes codes based on the following rules:

• Include these codes as defined in http://dicom.nema.org/resources/ontology/DCM

  Code	Display	Definition
  110828	Flow velocity	Velocity of blood flow based on Doppler measurements.

• Include these codes as defined in http://loinc.org

  Code	Display
  11665-7	Minimum Diastolic Velocity
  12023-8	Resistivity Index
  20354-7	Velocity Time Integral
  20256-4	Mean Gradient
  11726-7	Peak Systolic Velocity
  33878-0	Volume flow
  33867-3	Velocity ratio
  11692-1	Time averaged peak velocity
  11653-3	End Diastolic Velocity
  20247-3	Peak Gradient
  20167-3	Acceleration Index
  20217-6	Deceleration Time
  20168-1	Acceleration Time
  12144-2	Systolic to Diastolic Velocity Ratio
  12008-9	Pulsatility Index
  20352-1	Time averaged mean velocity

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  413975003	Vessel depth from surface
  397414006	Vessel outside diameter
  415814008	Vessel Intimal Cross-Sectional Diameter
  408715008	Lumen Diameter Stenosis
  397413000	Vessel lumen diameter
  414599003	Length of Segment
  397415007	Vessel lumen cross-sectional area
  408714007	Lumen Area Stenosis
  415815009	Vessel Intimal Diameter