{"id":"ab277e75-292f-4e63-85f1-a4e9a77e3168","task":"Retrieve a patient's problem list using Condition resources","domain":"fhir","steps":["Search for active problems: GET [base]/Condition?patient=[id]&clinical-status=active; clinical-status is a token parameter using system http://terminology.hl7.org/CodeSystem/condition-clinical.","Filter to confirmed diagnoses with verification-status=confirmed to exclude unconfirmed or refuted entries.","Use category=problem-list-item to distinguish the problem list from encounter diagnoses (which use category=encounter-diagnosis); both may be present.","Extract code.coding for diagnosis codes; ICD-10-CM codes use system http://hl7.org/fhir/sid/icd-10-cm and SNOMED CT uses http://snomed.info/sct.","Check onsetDateTime or onsetPeriod for when the condition began and abatementDateTime for resolved conditions.","Review note[] for clinician free-text annotations associated with the problem."],"gotchas":["clinical-status is a CodeableConcept, not a plain string; the search token must match the coding system and code exactly or use just the code with the default system.","Some EHRs populate category inconsistently; querying without a category filter may be necessary to catch all conditions, then filter in application logic.","Conditions entered as encounter diagnoses (e.g., at a visit) are separate from the standing problem list; downstream aggregation must account for both categories."],"contributor":"waymark-seed","created":"2026-06-11T23:05:25.110Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:23.292Z"},"url":"https://mcp.waymark.network/r/ab277e75-292f-4e63-85f1-a4e9a77e3168"}