Update BDPatientProfile and add Blood Group CodeSystem and Extension

- Set identifier and link discriminator paths to "system" in BDPatientProfile
- Introduce BDBloodGroupCS CodeSystem with blood group codes
- Create BDBloodGroupVS ValueSet for blood group codes
- Refine bdbloodgroup extension with updated ID and description

input/fsh/bdpatient.fsh

@@ -11,7 +11,7 @@ Description: "All patient information of BD"
 * identifier 1..*
 
 * identifier ^slicing.discriminator.type = #value
-* identifier ^slicing.discriminator.path = ""
+* identifier ^slicing.discriminator.path = "system"
 * identifier ^slicing.rules = #open
 * identifier ^slicing.description = "Identifier"
 * identifier ^slicing.ordered = false
@@ -57,7 +57,7 @@ Description: "All patient information of BD"
 
 * link 2..*
 * link ^slicing.discriminator.type = #value
-* link ^slicing.discriminator.path = ""
+* link ^slicing.discriminator.path = "system"
 * link ^slicing.rules = #open
 * link ^slicing.description = ""
 * link ^slicing.ordered = false
@@ -108,3 +108,8 @@ Description: "Profile for RelatedPerson representing the father"
 
 // TODO
 // * includes codes from system  BdIdentifierTypeVs# (required)
+
+
+//Address
+* address 1..* MS
+* address only BDAddress 

input/fsh/codeSystems/BDBloodGroupCS.fsh

@@ -0,0 +1,26 @@
+// ---------------------------
+// CodeSystem for BD Blood Groups
+// ---------------------------
+CodeSystem: BDBloodGroupCS
+Id: bd-blood-groups
+Title: "Bangladesh Blood Group CodeSystem"
+Description: "Blood group codes according to CCDS guideline"
+* ^url = "https://fhir.dghs.gov.bd/core/CodeSystem/bd-blood-groups"
+* ^content = #complete
+* #1 "O Positive"
+* #2 "O Negative"
+* #3 "A Positive"
+* #4 "A Negative"
+* #5 "B Positive"
+* #6 "B Negative"
+* #7 "AB Positive"
+* #8 "AB Negative"
+
+// ---------------------------
+// ValueSet for BD Blood Groups
+// ---------------------------
+ValueSet: BDBloodGroupVS
+Id: bd-blood-group-vs
+Title: "Bangladesh Blood Group ValueSet"
+Description: "Blood group value set according to CCDS guideline"
+* include codes from system BDBloodGroupCS

input/fsh/extensions/bloodgroup.fsh

@@ -1,16 +1,9 @@
+// ---------------------------
+// Extension Definition
+// ---------------------------
 Extension: bdbloodgroup
-Id: BloodGroup
+Id: bd-blood-group
 Title: "Patient Blood Group"
-Description: "BD Blood Group according to CCDS"
-
-* valueCodeableConcept 0..1
-
-
-* #1 "O Positive"
-* #2 "O Negative"
-* #3 "A Positive"
-* #4 "A Negative"
-* #5 "B Positive"
-* #6 "B Negative"
-* #7 "AB Positive"
-* #8 "AB Negative"
+Description: "Blood group of the patient according to CCDS guideline"
+* valueCodeableConcept 1..1
+* valueCodeableConcept from BDBloodGroupVS (required)