value: cdc-opioid-guidance

system: http://terminology.hl7.org/CodeSystem/plan-definition-type

code: eca-rule

display: ECA Rule

define "Chronic Pain Opioid Analgesic with Ambulatory Misuse Potential Prescriptions":
  ( Common."Is Opioid Analgesic with Ambulatory Misuse Potential?"( ContextPrescriptions ) ) AmbulatoryOpioidPrescription
    where Routines."Is Subacute or Chronic Pain Prescription?"( AmbulatoryOpioidPrescription )

define "Patient Is Being Prescribed Opioid Analgesic with Ambulatory Misuse Potential":
  exists( "Chronic Pain Opioid Analgesic with Ambulatory Misuse Potential Prescriptions" )

define "Patient Age Less Than 18":
  if (Config."Age Less than 18 Years Is Enabled") then
    AgeInYearsAt(Today()) < 18
  else false

define "Condition Positive for Sickle Cell":
  if (Config."Sickle Cell Check Enabled") then
    exists(
      Common."Positive Sickle Cell Condition"
    ) 
  else false

define "Is Active Cancer Treatment?":
  if (Config."Active Cancer Treatment Encounters Condition Is Enabled") 
    then "Has Two or More Encounters with Cancer Diagnosis During Encounter Period"
      or "Has Active Cancer Diagnosis on Problem List"
  else false

define "Conditions Likely Terminal for Opioid Prescribing":
  if (Config."End-Stage Disease Criteria Enabled") then
    exists (
      Common."US Core-Categorized Conditions" EOLC
        where EOLC.code in Common."Conditions likely terminal for opioid prescribing"
          // and EOLC.clinicalStatus in Common."Active Condition"
    )
  else false

define "Is Opioid Review Useful?":
  not "Patient Age Less Than 18"
    and not "Condition Positive for Sickle Cell"
    and not "Is Active Cancer Treatment?"
    and not "Conditions Likely Terminal for Opioid Prescribing"

// Recommendation 9
define "PDMP Data Not Reviewed in Past 90 Days Criteria Enabled":
  true

define "Look Back 90 Days":
  Interval[Today() - 90 days, Today()]

define "PDMP Data Not Reviewed in Past 90 Days":
  Config."PDMP Data Not Reviewed in Past 90 Days Criteria Enabled"
    and not (
      exists (
        [Procedure: Common."PDMP review procedure"] P
          where P.status ~ 'completed'
            and P.performed during "Look Back 90 Days"
      )
      or exists (
        [Observation: Common."PDMP data reviewed finding"] O
          where O.status in { 'final', 'amended' }
            and (
              if O.effective is FHIR.Period
                then (O.effective as FHIR.Period) during day of "Look Back 90 Days"
                else if O.effective is FHIR.dateTime
                  then date from O.effective in day of "Look Back 90 Days"
                  else false
          )
      )
    )

define "Inclusion Criteria":
  "Patient Is Being Prescribed Opioid Analgesic with Ambulatory Misuse Potential"
    and Routines."Is Opioid Review Useful?"
    and "PDMP Data Not Reviewed in Past 90 Days"

define "Exclusion Criteria":
  false

define "Is Recommendation Applicable?":
  "Inclusion Criteria"
    and not "Exclusion Criteria"

define function "Is Opioid Analgesic with Ambulatory Misuse Potential?"(value List<MedicationRequest>):
  ("Get MedicationRequest Medication as Code"(value)) Rx
    where Rx.medication in "Opioid analgesics with ambulatory misuse potential" 
      and Rx.category in "Community"

define function "Get MedicationRequest Medication as Code"(value List<MedicationRequest>):
  value Rx
    let Med: 
      if Rx.medication is Reference then singleton from (
        [Medication] M
          where M.id = (Last(Split((Rx.medication as FHIR.Reference).reference, '/')))
      ) else null
    return 
      MedicationRequest {
        id: Rx.id,
        status: Rx.status,
        intent: Rx.intent,
        category: Rx.category,
        medication: if Rx.medication is Reference then Med.code else Rx.medication as CodeableConcept,
        subject: Rx.subject,
        authoredOn: Rx.authoredOn,
        recorder: Rx.recorder,
        dosageInstruction: Rx.dosageInstruction,
        dispenseRequest: Rx.dispenseRequest
      }

define function ToConcept(concept FHIR.CodeableConcept):
    if concept is null then
        null
    else
        System.Concept {
            codes: concept.coding C return ToCode(C),
            display: concept.text.value
        }

// End of Active Cancer Treatment Routine

/*
**  Routine #4
**  For Subacute or Chronic Pain Routine
**
**  Definition                  | Answer to Proceed   | Details                                        | Data (Terminology) Requirement
**  -----------------------------------------------------------------------------------------------------------------------------------
**  Order for opioid analgesic  | Yes                 | Order for opioid analgesics with ambulatory    | Opioid analgesics with
**  with expected supply        |                     | misuse potential with a supply duration of >=  | ambulatory misuse potential
**  duration >= 28 days         |                     | 28 days                                        |
**                              |                     |                                                |
**                              |                     | - Subacute definition = order for opioid       |
**                              |                     |   analgesics with ambulatory misuse            |
**                              |                     |   potential with a supply duration of one to   |
**                              |                     |   two months.                                  |
**                              |                     | - Chronic pain definition = order for opioid   |
**                              |                     |   analgesics with ambulatory misuse            |
**                              |                     |   potential with a supply duration of >= two   |
**                              |                     |   months.                                      |
**  -----------------------------------------------------------------------------------------------------------------------------------
**
*/

define function "Is Subacute or Chronic Pain Prescription?"(prescription FHIR.MedicationRequest):
  "Is Subacute or Chronic Pain Using Expected Supply Duration"(prescription)
    or "Is Subacute or Chronic Pain Using Validity Period"(prescription)

define function "Is Subacute or Chronic Pain Using Expected Supply Duration"(prescription FHIR.MedicationRequest):
  (
    prescription.dispenseRequest is not null
      and prescription.dispenseRequest.expectedSupplyDuration is not null
      and (
        Common.GetDurationInDays(prescription.dispenseRequest.expectedSupplyDuration) >= 28 days 
      )
  )

define function GetDurationInDays(value FHIR.Duration):
  if value is null then null
  else
    case
      when value.code.value ~ 'a' then System.Quantity{ value: value.value.value * 365.0, unit: 'days' }
      when value.code.value ~ 'mo' then System.Quantity{ value: value.value.value * 30.0, unit: 'days' }
      when value.code.value ~ 'wk' then System.Quantity{ value: value.value.value * 7.0, unit: 'days' }
      when value.code.value ~ 'd' then System.Quantity{ value: value.value.value, unit: 'days' }
      when value.code.value ~ 'h' then System.Quantity{ value: value.value.value / 24.0, unit: 'days' }
      when value.code.value ~ 'min' then System.Quantity{ value: value.value.value / 60.0 / 24.0, unit: 'days' }
      when value.code.value ~ 's' then System.Quantity{ value: value.value.value / 60.0 / 60.0 / 24.0, unit: 'days' }
      when value.code.value ~ 'ms' then System.Quantity{ value: value.value.value / 60.0 / 60.0 / 24.0 / 1000.0, unit: 'days' }
      when value.code.value is null then Message(1000, true, 'Undefined', 'Error', 'Duration unit code is null')
      else Message(1000, true, 'Undefined', 'Error', 'Unsupported duration unit code: ' + value.code.value)
end

define function "Is Subacute or Chronic Pain Using Validity Period"(prescription FHIR.MedicationRequest):
  (
    prescription.dispenseRequest is not null
      and prescription.dispenseRequest.validityPeriod is not null
      and (
        days between prescription.dispenseRequest.validityPeriod.start and prescription.dispenseRequest.validityPeriod.end >= 28 
      )
  )

define function ToDateTime(value dateTime): value.value

define function ToString(value ProcedureStatus): value.value

define function ToInterval(period FHIR.Period):
    if period is null then
        null
    else
        if period."start" is null then
            Interval(period."start".value, period."end".value]
        else
            Interval[period."start".value, period."end".value]

Documentation

• 2022 CDC Clinical Practice Guideline for Prescribing Opioids for Pain