V2.8 Chapter 2C - Control, Code Tables - HL7.org
C.2.115 0174 - Nature of Service/Test/Observation. 2. ...... Even though these
tables are not defined in the Standard, they are given a user-defined ...... HL7
Table 0085 - Observation Result Status Codes Interpretation ..... November 2010
..... When such results are reported the CN code replaces the RE code in all but
the last ...