diff --git a/core/census_enums.mcf b/core/census_enums.mcf
index 5260a6d18..f96af3121 100644
--- a/core/census_enums.mcf
+++ b/core/census_enums.mcf
@@ -412,6 +412,10 @@ Node: dcid:HighSchoolGraduateGedOrAlternative
 typeOf: dcs:USC_EducationalAttainmentEnum
 name: "HighSchoolGraduateGedOrAlternative"
 
+Node: dcid:CDC_EducationalAttainmentUnknownOrNotStated
+typeOf: dcs:USC_EducationalAttainmentEnum
+name: "CDC_EducationalAttainmentUnknownOrNotStated"
+
 Node: dcid:EducationalMajorEnum
 typeOf: schema:Class
 subClassOf: schema:Enumeration
@@ -942,6 +946,10 @@ typeOf: dcs:USC_MaritalStatusEnum
 dcid: "DivorcedOrSeparated"
 name: "DivorcedOrSeparated"
 
+Node: dcid:CDC_MaritalStatusUnknownOrNotStated
+typeOf: dcs:USC_MaritalStatusEnum
+name: "CDC_MaritalStatusUnknownOrNotStated"
+
 Node: USC_NativityEnum
 typeOf: schema:Class
 subClassOf: schema:Enumeration
@@ -958,6 +966,10 @@ typeOf: dcs:USC_NativityEnum
 dcid: "USC_Native"
 name: "USC_Native"
 
+Node: dcid:CDC_NativityUnknownOrNotStated
+typeOf: dcs:USC_NativityEnum
+name: "CDC_NativityUnknownOrNotStated"
+
 Node: OccupancyStatusEnum
 typeOf: schema:Class
 subClassOf: schema:Enumeration
@@ -1240,6 +1252,10 @@ Node: dcid:USC_HispanicOrLatinoRace
 typeOf: dcs:RaceCodeEnum
 name: "USC_HispanicOrLatinoRace"
 
+Node: dcid:CDC_RaceUnknownOrNotStated
+typeOf: dcs:RaceCodeEnum
+name: "CDC_RaceUnknownOrNotStated"
+
 Node: USC_SchoolEnrollmentEnum
 typeOf: schema:Class
 subClassOf: schema:Enumeration
diff --git a/core/dcschema.mcf b/core/dcschema.mcf
index 573892739..ba49b8c9f 100644
--- a/core/dcschema.mcf
+++ b/core/dcschema.mcf
@@ -826,6 +826,12 @@ domainIncludes: schema:BirthEvent
 description: "The elapsed time since the mother's last pregnancy outcome for outcomes other than live birth."
 descriptionUrl: "https://wonder.cdc.gov/wonder/help/natality-expanded.html#Interval-Last-Other-Pregnancy-Outcome"
 
+Node: dcid:prenatalVisitCount
+typeOf: schema:Property
+name: "prenatalVisitCount"
+rangeIncludes: schema:Number
+domainIncludes: schema:BirthEvent
+
 # Begin Planned Parenthood additions
 Node: medicalSpecialty
 typeOf: schema:Property
diff --git a/core/dcschema_enum_instances.mcf b/core/dcschema_enum_instances.mcf
index 80f9a4e43..e2dac5a14 100644
--- a/core/dcschema_enum_instances.mcf
+++ b/core/dcschema_enum_instances.mcf
@@ -2047,6 +2047,10 @@ Node: dcid:UCR_MultipleEthnicity
 name: "UCR_MultipleEthnicity"
 typeOf: dcs:EthnicityEnum
 
+Node: dcid:CDC_EthnicityUnknownOrNotStated
+typeOf: dcs:EthnicityEnum
+name: "CDC_EthnicityUnknownOrNotStated"
+
 Node: dcid:Offense
 name: "Offense"
 typeOf: dcs:FBI_MeasurementQualifierEnum