• Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation version 2.1.0

  Code	Display	Definition
  A	Abnormal	The result or observation value is outside the reference range or expected norm (as defined for the respective test procedure). \[Note: Typically applies to non-numeric results.\]
  AA	Critical abnormal	The result or observation value is outside a reference range or expected norm at a level at which immediate action should be considered for patient safety (as defined for the respective test procedure). \[Note: Typically applies to non-numeric results. Analogous to critical/panic limits for numeric results.\]
  HH	Critical high	The result for a quantitative observation is above a reference level at which immediate action should be considered for patient safety (as defined for the respective test procedure). Synonym: Above upper panic limits.
  LL	Critical low	The result for a quantitative observation is below a reference level at which immediate action should be considered for patient safety (as defined for the respective test procedure). Synonym: Below lower panic limits.
  H	High	The result for a quantitative observation is above the upper limit of the reference range (as defined for the respective test procedure). Synonym: Above high normal
  H>	Significantly high	A test result that is significantly higher than the reference (normal) or therapeutic interval, but has not reached the critically high value and might need special attention, as defined by the laboratory or the clinician. \[Note: This level is situated between 'H' and 'HH'.\] *Deprecation Comment:* The code 'H>' is being deprecated in order to align with the use of the code 'HU' for "Very high" in V2 Table 0078 "Interpretation Codes". \[Note: The use of code 'H>' is non-preferred, as this code is deprecated and on track to be retired; use code 'HU' instead.
  HU	Significantly high	A test result that is significantly higher than the reference (normal) or therapeutic interval, but has not reached the critically high value and might need special attention, as defined by the laboratory or the clinician.
  L	Low	The result for a quantitative observation is below the lower limit of the reference range (as defined for the respective test procedure). Synonym: Below low normal
  L<	Significantly low	A test result that is significantly lower than the reference (normal) or therapeutic interval, but has not reached the critically low value and might need special attention, as defined by the laboratory or the clinician. \[Note: This level is situated between 'L' and 'LL'.\] *Deprecation Comment:* The code 'L<' is being deprecated in order to align with the use of the code 'LU' for "Very low" in V2 Table 0078 "Interpretation Codes". \[Note: The use of code 'L<' is non-preferred, as this code is deprecated and on track to be retired; use code 'LU' instead.
  LU	Significantly low	A test result that is significantly lower than the reference (normal) or therapeutic interval, but has not reached the critically low value and might need special attention, as defined by the laboratory or the clinician.

This value set expansion contains 10 concepts.