Atrius India Core FHIR Implementation Guide
0.1.0 - ci-build

Atrius India Core FHIR Implementation Guide - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

CodeSystem: Atrius medication frequency codes

Official URL: https://atrius.in/fhir/r4/atrius-in/CodeSystem/atrius-medication-frequency Version: 0.1.0
Active as of 2026-08-30 Computable Name: AtriusMedicationFrequencyCS
Other Identifiers: OID:1.3.6.1.4.1.66219.1.16.16

Common Indian inpatient prescribing frequencies (OD/BID/TDS/QID/…) used on MedicationRequest dosage and eMAR schedule expansion.

This Code system is referenced in the definition of the following value sets:

This case-sensitive code system https://atrius.in/fhir/r4/atrius-in/CodeSystem/atrius-medication-frequency defines the following codes:

CodeDisplayDefinition
OD Once daily One dose per day (default ward clock 08:00)
BID Twice daily Two doses per day (08:00, 20:00)
TDS Thrice daily Three doses per day (08:00, 14:00, 20:00)
QID Four times daily Four doses per day (06:00, 12:00, 18:00, 22:00)
HS At bedtime Once at bedtime (22:00)
Q4H Every 4 hours Interval dosing every 4 hours
Q6H Every 6 hours Interval dosing every 6 hours
Q8H Every 8 hours Interval dosing every 8 hours
STAT Immediate Single urgent dose
SOS As needed (PRN) No automatic schedule expansion
CONTINUOUS Continuous infusion Start/stop charting; rate on dosage

Description of the above table(s).