diff --git a/src/semsql/builder/prefixes/prefixes.csv b/src/semsql/builder/prefixes/prefixes.csv
index 15d5538..1ace84d 100644
--- a/src/semsql/builder/prefixes/prefixes.csv
+++ b/src/semsql/builder/prefixes/prefixes.csv
@@ -37,6 +37,8 @@ allotrope.role,http://purl.allotrope.org/ontologies/role#
 allotrope.equipment,http://purl.allotrope.org/ontologies/equipment#
 allotrope,http://purl.allotrope.org/ontologies/
 aio,https://w3id.org/aio/
+ICD10CM,http://purl.bioontology.org/ontology/ICD10CM/
+ICD10WHO,https://icd.who.int/browse10/2019/en#/
 PSO,http://purl.obolibrary.org/obo/PSO_
 CHIRO,http://purl.obolibrary.org/obo/CHIRO_
 PW,http://purl.obolibrary.org/obo/PW_
diff --git a/src/semsql/builder/prefixes/prefixes_curated.csv b/src/semsql/builder/prefixes/prefixes_curated.csv
index 691d9d5..0a7292c 100644
--- a/src/semsql/builder/prefixes/prefixes_curated.csv
+++ b/src/semsql/builder/prefixes/prefixes_curated.csv
@@ -37,3 +37,5 @@ allotrope.role,http://purl.allotrope.org/ontologies/role#
 allotrope.equipment,http://purl.allotrope.org/ontologies/equipment#
 allotrope,http://purl.allotrope.org/ontologies/
 aio,https://w3id.org/aio/
+ICD10CM,http://purl.bioontology.org/ontology/ICD10CM/
+ICD10WHO,https://icd.who.int/browse10/2019/en#/