Critical Range for Ordinal and Continuous Observations

Definition: This field applies only to single tests/observations (i.e., a nature code of A or C, as described in OM1-18 - Nature of service/test/observation) with numeric results. When a critical range is defined for such observations, it should be recorded here in the same format as the normal range (see OM2-6 - Reference (normal) range - ordinal and continuous observations).