00642
Derived Specimen
2013-03-10
Definition: This field contains the codes that identify the parents and children for diagnostic studies-especially in microbiology-where the initial specimen (e.g., blood) is processed to produce results (e.g., the identity of the bacteria grown out of the culture). The process also produces new "specimens" (e.g., pure culture of staphylococcus, and E. coli), and these are studied by a second order process (bacterial sensitivities). The parents (e.g., blood culture) and children (e.g., penicillin MIC) are identified in such cases. Refer to HL7 Table 0170 - Derived Specimen for valid values:
Length1
3 values
C | Child Observation |
N | Not Applicable |
P | Parent Observation |