feature: FHIR R4 Inbound Facade

2026-06-21 13:53:38 +08:00
parent 9f96f54007
commit a43db52813
42 changed files with 2873 additions and 3 deletions
@@ -0,0 +1,51 @@
+public static class LoincCodeMapper
+{
+    // LOINC → internal observation code. Covers all codes in DataSeeder + PlausibilityValidator.
+    private static readonly Dictionary<string, LoincMapping> _map = new(StringComparer.OrdinalIgnoreCase)
+    {
+        ["8867-4"]  = new("HEART_RATE", "/min"),
+        ["8310-5"]  = new("TEMP_C", "Cel", AllowFahrenheit: true),
+        ["2823-3"]  = new("POTASSIUM_MEQ_L", "mmol/L"),
+        ["2708-6"]  = new("SPO2", "%"),
+        ["9279-1"]  = new("RESP_RATE", "/min"),
+        ["6690-2"]  = new("WBC_K_UL", "10*3/uL"),
+        ["8480-6"]  = new("SYSTOLIC_BP", "mm[Hg]"),
+        ["8462-4"]  = new("DIASTOLIC_BP", "mm[Hg]"),
+        ["2524-7"]  = new("LACTATE_MMOL_L", "mmol/L"),
+        ["2339-0"]  = new("GLUCOSE_MG_DL", "mg/dL"),
+        ["777-3"]   = new("PLATELET_K_UL", "10*3/uL"),
+        ["1975-2"]  = new("BILIRUBIN_MG_DL", "mg/dL"),
+        ["2160-0"]  = new("CREATININE_MG_DL", "mg/dL"),
+        ["2703-7"]  = new("PAO2_MMHG", "mm[Hg]"),
+        ["3150-0"]  = new("FIO2_PCT", "%"),
+        ["9187-6"]  = new("URINE_OUTPUT_ML_H", "mL/h"),
+        // GCS — often sent as panel with components; also map individual LOINC codes used by some EHRs
+        ["80288-7"] = new("GCS_EYE", "{score}"),
+        ["80289-5"] = new("GCS_VERBAL", "{score}"),
+        ["80290-3"] = new("GCS_MOTOR", "{score}"),
+    };
+
+    // SNOMED CT fallbacks for non-LOINC sites
+    private static readonly Dictionary<string, LoincMapping> _snomedMap = new(StringComparer.OrdinalIgnoreCase)
+    {
+        ["364075005"] = new("HEART_RATE", "/min"),
+        ["431314004"] = new("SPO2", "%"),
+        ["86290005"]  = new("RESP_RATE", "/min"),
+    };
+
+    public static bool TryMap(string system, string code, out LoincMapping mapping)
+    {
+        if (system.Contains("loinc", StringComparison.OrdinalIgnoreCase) &&
+            _map.TryGetValue(code, out mapping!))
+            return true;
+
+        if (system.Contains("snomed", StringComparison.OrdinalIgnoreCase) &&
+            _snomedMap.TryGetValue(code, out mapping!))
+            return true;
+
+        mapping = null!;
+        return false;
+    }
+
+    public static IReadOnlyCollection<string> SupportedLoincCodes => _map.Keys;
+}