diff --git a/fsh-generated/resources/Observation-example-tnm-rpT3mpN0icM0R1is.json b/fsh-generated/resources/Observation-example-tnm-rpT3mpN0icM0R1is.json
index ac19e76..bd46d48 100644
--- a/fsh-generated/resources/Observation-example-tnm-rpT3mpN0icM0R1is.json
+++ b/fsh-generated/resources/Observation-example-tnm-rpT3mpN0icM0R1is.json
@@ -65,8 +65,8 @@
       "code": {
         "coding": [
           {
-            "code": "277650004",
-            "system": "http://snomed.info/sct",
+            "code": "42030-7",
+            "system": "http://loinc.org",
             "display": "m - Multiple tumors (tumor staging)"
           }
         ]
diff --git a/fsh-generated/resources/StructureDefinition-UICC-TNM.json b/fsh-generated/resources/StructureDefinition-UICC-TNM.json
index f06c717..2fe66a3 100644
--- a/fsh-generated/resources/StructureDefinition-UICC-TNM.json
+++ b/fsh-generated/resources/StructureDefinition-UICC-TNM.json
@@ -344,8 +344,8 @@
         "patternCodeableConcept": {
           "coding": [
             {
-              "code": "277650004",
-              "system": "http://snomed.info/sct",
+              "code": "42030-7",
+              "system": "http://loinc.org",
               "display": "m - Multiple tumors (tumor staging)"
             }
           ]
diff --git a/input/fsh/observation.fsh b/input/fsh/observation.fsh
index e6efdcb..a3eca56 100644
--- a/input/fsh/observation.fsh
+++ b/input/fsh/observation.fsh
@@ -81,7 +81,7 @@ Description: "Observation-Profil für die UICC TNM - Klassifikation Maligner Tum
 * component[T-Code].value[x] from VS_TNM_T_Kategorie_UICC (required)
 * component[m-Symbol] ^short = "m-Symbol"
 * component[m-Symbol] ^definition = "Das Suffix „m“, in Klammern gesetzt, wird benutzt, um multiple Primärtumoren in einem anatomischen Bezirk anzuzeigen."
-* component[m-Symbol].code = SCT#277650004 "m - Multiple tumors (tumor staging)" //LOINC??
+* component[m-Symbol].code = LNC#42030-7 "m - Multiple tumors (tumor staging)" 
 * component[m-Symbol].value[x] only CodeableConcept
 * component[m-Symbol].value[x] from VS_TNM_T_Multiplizitaet_UICC (required)
 * component[N-Code] ^short = "N - Regionäre Lymphknoten"
@@ -297,7 +297,7 @@ Description: "Example TNM r pT3(m) pN0 (i+) cM0 R1(is)."
 * component[T-Code].extension[SD_UICC_TNM_Praefix_CP].valueCodeableConcept = UICC#p "p"
 * component[T-Code].code = LNC#21899-0 "Primary tumor.pathology Cancer"
 * component[T-Code].valueCodeableConcept = UICC#T3 "T3"
-* component[m-Symbol].code = SCT#277650004 "m - Multiple tumors (tumor staging)"
+* component[m-Symbol].code = LNC#42030-7 "m - Multiple tumors (tumor staging)"
 * component[m-Symbol].valueCodeableConcept = UICC#m "(m)"
 * component[N-Code].extension[SD_UICC_TNM_Praefix_CP].valueCodeableConcept = UICC#p "p"
 * component[N-Code].code = LNC#21900-6 "Regional lymph nodes.pathology [Class] Cancer"