Stream: implementers
Topic: Timing Frequencies
Grahame Grieve (Mar 20 2018 at 19:42):
A contribution from the NHS: "I have been doing some analysis of medication administration frequencies with a view to standardising them across NHS primary and secondary care. Your FHIR development teams might be interested in the attached spreadsheet for development testing.
These codes are commonly used in NHS secondary care e-Prescribing systems. Unfortunately our primary care prescribing systems still rely on a 'free text' medication frequency description"
Grahame Grieve (Mar 20 2018 at 19:42):
Medication-Administration-Frequencies-DRAFT1-19-03-2018-Andrew-Gledhill.xlsx
John Silva (Mar 21 2018 at 01:38):
Couldn't these be defined as was done in HL7 V2.x table 0335 (Repeat Pattern) - http://hl7.org/fhir/v2/0335/index.html ?
Grahame Grieve (Mar 21 2018 at 01:41):
well, we can certainly define them somewhere. The most natural place for us would be in the v3 code system http://build.fhir.org/valueset-timing-abbreviation.html
Grahame Grieve (Mar 21 2018 at 01:41):
mainly what I was doing here was moving a contribution made privately into the public domain
John Silva (Mar 21 2018 at 01:47):
OK, (define in V3 code system) but from aren't there more people familiar with the V2 Repeat Pattern concepts than the timing-abbreviation V3 list (which seems to be very sparse)? Plus, it would make it easier to convert V2.x Pharmacy messages (timing segments) to FHIR. :-)
Andrew Gledhill (Mar 22 2018 at 11:35):
Medication-Administration-Frequencies-DRAFT-2-22-03-2018-Andrew-Gledhill.xlsx
Hello Grahame and John. I have updated the table (attached) in line with UCUM (units of time abbreviations).
Grahame Grieve (Mar 22 2018 at 12:18):
thanks
Melva Peters (Mar 22 2018 at 13:44):
I've added a GF Tracker Item for Pharmacy WG to review GF#15814
Andrew Gledhill (Mar 24 2018 at 11:15):
Draft 3 (final draft I hope) should be much more useful to the implementer community.
The Frequency/Timing table has been updated in HL7 FHIR format thanks to the help of Rik Smithies HL7 UK.Medication-Administration-Frequencies-DRAFT-3-with-HL7-structure-24-Mar-2018.xlsx
John Silva (Mar 27 2018 at 18:16):
@Andrew Gledhill - thanks! Some of them though might not match the "typical" UCUM abreviations (or maybe I'm just used to seeing the 'Latin root' frequencies). For example, 'bd' for twice a day is BID, and 'tds' is TID, and xID for any other multiple per day.
Scott Robertson (May 18 2018 at 12:25):
The coded frequencies suggested are interesting, but not particularly new. They are, as noted, mostly in the v2 timing specification. These codes (e.g., qd, bid, qid) are disfavored in clinical practice due to the potential for misinterpretation and patient harm. The updated table actually shows how the presented codes would be represented in FHIR: the code may be part of the user interface, but the precise timing components would be in the FHIR resource
Last updated: Apr 12 2022 at 19:14 UTC
