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

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: Atrius medication frequency codes

Active as of 2026-08-30

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="atrius-medication-frequency"/>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem atrius-medication-frequency</b></p><a name="atrius-medication-frequency"> </a><a name="hcatrius-medication-frequency"> </a><p>This case-sensitive code system <code>https://atrius.in/fhir/r4/atrius-in/CodeSystem/atrius-medication-frequency</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">OD<a name="atrius-medication-frequency-OD"> </a></td><td>Once daily</td><td>One dose per day (default ward clock 08:00)</td></tr><tr><td style="white-space:nowrap">BID<a name="atrius-medication-frequency-BID"> </a></td><td>Twice daily</td><td>Two doses per day (08:00, 20:00)</td></tr><tr><td style="white-space:nowrap">TDS<a name="atrius-medication-frequency-TDS"> </a></td><td>Thrice daily</td><td>Three doses per day (08:00, 14:00, 20:00)</td></tr><tr><td style="white-space:nowrap">QID<a name="atrius-medication-frequency-QID"> </a></td><td>Four times daily</td><td>Four doses per day (06:00, 12:00, 18:00, 22:00)</td></tr><tr><td style="white-space:nowrap">HS<a name="atrius-medication-frequency-HS"> </a></td><td>At bedtime</td><td>Once at bedtime (22:00)</td></tr><tr><td style="white-space:nowrap">Q4H<a name="atrius-medication-frequency-Q4H"> </a></td><td>Every 4 hours</td><td>Interval dosing every 4 hours</td></tr><tr><td style="white-space:nowrap">Q6H<a name="atrius-medication-frequency-Q6H"> </a></td><td>Every 6 hours</td><td>Interval dosing every 6 hours</td></tr><tr><td style="white-space:nowrap">Q8H<a name="atrius-medication-frequency-Q8H"> </a></td><td>Every 8 hours</td><td>Interval dosing every 8 hours</td></tr><tr><td style="white-space:nowrap">STAT<a name="atrius-medication-frequency-STAT"> </a></td><td>Immediate</td><td>Single urgent dose</td></tr><tr><td style="white-space:nowrap">SOS<a name="atrius-medication-frequency-SOS"> </a></td><td>As needed (PRN)</td><td>No automatic schedule expansion</td></tr><tr><td style="white-space:nowrap">CONTINUOUS<a name="atrius-medication-frequency-CONTINUOUS"> </a></td><td>Continuous infusion</td><td>Start/stop charting; rate on dosage</td></tr></table></div>
  </text>
  <url
       value="https://atrius.in/fhir/r4/atrius-in/CodeSystem/atrius-medication-frequency"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:1.3.6.1.4.1.66219.1.16.16"/>
  </identifier>
  <version value="0.1.0"/>
  <name value="AtriusMedicationFrequencyCS"/>
  <title value="Atrius medication frequency codes"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2026-08-30T18:15:29+05:30"/>
  <publisher value="Atrius"/>
  <contact>
    <name value="Atrius"/>
    <telecom>
      <system value="url"/>
      <value value="https://atrius.in"/>
    </telecom>
  </contact>
  <description
               value="Common Indian inpatient prescribing frequencies (OD/BID/TDS/QID/…) used on MedicationRequest dosage and eMAR schedule expansion."/>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="11"/>
  <concept>
    <code value="OD"/>
    <display value="Once daily"/>
    <definition value="One dose per day (default ward clock 08:00)"/>
  </concept>
  <concept>
    <code value="BID"/>
    <display value="Twice daily"/>
    <definition value="Two doses per day (08:00, 20:00)"/>
  </concept>
  <concept>
    <code value="TDS"/>
    <display value="Thrice daily"/>
    <definition value="Three doses per day (08:00, 14:00, 20:00)"/>
  </concept>
  <concept>
    <code value="QID"/>
    <display value="Four times daily"/>
    <definition value="Four doses per day (06:00, 12:00, 18:00, 22:00)"/>
  </concept>
  <concept>
    <code value="HS"/>
    <display value="At bedtime"/>
    <definition value="Once at bedtime (22:00)"/>
  </concept>
  <concept>
    <code value="Q4H"/>
    <display value="Every 4 hours"/>
    <definition value="Interval dosing every 4 hours"/>
  </concept>
  <concept>
    <code value="Q6H"/>
    <display value="Every 6 hours"/>
    <definition value="Interval dosing every 6 hours"/>
  </concept>
  <concept>
    <code value="Q8H"/>
    <display value="Every 8 hours"/>
    <definition value="Interval dosing every 8 hours"/>
  </concept>
  <concept>
    <code value="STAT"/>
    <display value="Immediate"/>
    <definition value="Single urgent dose"/>
  </concept>
  <concept>
    <code value="SOS"/>
    <display value="As needed (PRN)"/>
    <definition value="No automatic schedule expansion"/>
  </concept>
  <concept>
    <code value="CONTINUOUS"/>
    <display value="Continuous infusion"/>
    <definition value="Start/stop charting; rate on dosage"/>
  </concept>
</CodeSystem>