SMART DAK Cervical Cancer Screening, published by Dan Heslinga (independent contributor). This guide is not an authorized publication; it is the continuous build for version 0.0.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/dhes/smart-dak-cxca/ and changes regularly. See the Directory of published versions

Scheduling logic

The scheduling logic in this DAK encodes A/641 (2020) §2.3 recall and re-call rules — the timeout-based reminder triggers that drive follow-up after a screening sample is collected, a positive result is entered, a biopsy is received, or a treatment is recommended. The xlsx form of the scheduling table is deferred to a future iteration.

The active scheduling artifacts are:

• CQL Library CXCAD18SRecallSchedulingLogic — seven timeout-trigger defines, one per A/641 §2.3 row (HPV sample timeout 3wk, cytology unread 2wk, positive-result follow-up 4wk, biopsy 4wk, treatment after positive biopsy 4wk, second reminder 4wk, missed scheduled exam immediate)
• PlanDefinition CXCAD18SRecallScheduling — seven actions, one per timeout trigger, each invoking the same reminder ActivityDefinition with a different reasonCode that identifies which trigger caused the recall
• ActivityDefinition CXCAD18ReminderCommunicationRequest — the recall reminder template (kind = #CommunicationRequest); becomes a phone call, SMS, or outreach-worker visit per the deployment context

The recall scheduling layer is also the LTFU-prevention process layer — DE39 (positive-result follow-up timeout, 4 weeks) is the trigger that should fire for each of the 187 women lost to follow-up in the April 2026 Khan-Uul pilot. Recall scheduling and the NotDone profile are the two halves of the LTFU story; recall is the process that prevents LTFU, NotDone is the data shape that documents it when prevention fails. See Adapting Guidelines for Country Use for the methodology rationale.

For the full artifact inventory see the Artifact Index.