General Purpose R4 Supported Extensions

Overview

This page documents the FHIR extensions supported by the Netsmart General Purpose R4 API. Extensions provide additional data elements beyond the base FHIR specification to support specific healthcare workflows and data requirements.

Important: The extensions listed below are based on the current CapabilityStatement. Always validate extension support by retrieving the latest CapabilityStatement from the API endpoint.

Retrieving Current Extension Support

Before implementing extensions, retrieve the current CapabilityStatement to validate which extensions are supported:

# Production Environment
curl -X GET https://fhir.netsmartcloud.com/v4/metadata \
    -H "Accept: application/fhir+json"

# Preview Environment  
curl -X GET https://fhirtest.netsmartcloud.com/v4/metadata \
    -H "Accept: application/fhir+json"

Supported Extensions by Resource

Basic

Name	URI
Call Intake Caller	https://fhir.netsmartcloud.com/v4/StructureDefinition/callintake-caller
Call Intake Date	https://fhir.netsmartcloud.com/v4/StructureDefinition/callintake-date
Call Intake Disposition	https://fhir.netsmartcloud.com/v4/StructureDefinition/callintake-disposition
Call Intake Patient Name	https://fhir.netsmartcloud.com/v4/StructureDefinition/callintake-patient-name
Call Intake Program	https://fhir.netsmartcloud.com/v4/StructureDefinition/callintake-program
Call Intake Remarks	https://fhir.netsmartcloud.com/v4/StructureDefinition/callintake-remarks
Call Intake Type	https://fhir.netsmartcloud.com/v4/StructureDefinition/callintake-type

Condition

Name	URI
Condition Abortus Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-abortus-code
Condition CarePlan	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-careplan
Condition CarePlan Problem Narrative	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-careplan-problem-narrative
Condition Contraception Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-contraception-code
Condition Diagnosis Bill Order	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-diagnosisBillOrder
Condition Diagnosis Rank	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-diagnosisRank
Condition Diagnosis Role	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-diagnosisRank
Condition Ever Been Pregnant Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-ever-been-pregnant-code
Condition Ever Had Ectopic Pregnancy	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-ever-had-ectopic-pregnancy
Condition Ever Had Prenatal Care Another Facility	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-ever-had-prenatal-care-another-facility
Condition Expected Due Date	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-expected-due-date
Condition Gravida	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-gravida
Condition Living Child Details	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-living-child-details
Condition LNMP	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-lnmp
Condition Miscarriage Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-miscarriage-code
Condition Number of Abortus	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-number-of-abortus
Condition Number of Living Children	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-number-of-living-children
Condition Number of Miscarriages	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-number-of-miscarriages
Condition Para	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-para
Condition Prenatal Care Another Facility Date	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-prenatal-care-another-facility-date
Condition Received HPV Vaccine	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-received-hpv-vaccine
Condition Sexually Active Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-sexually-active-code
Condition Status Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-status-code
Condition Treated For STD Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/condition-treated-for-std-code

Coverage

Name	URI
Coverage Address	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-address
Coverage Aid Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-aid-code
Coverage Bill Order	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-bill-order
Coverage Birth Date	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-birth-date
Coverage Effective Date Of Contract	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-effective-date-of-contract
Coverage Effective Date of Medi-Cal Eligibility	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-effective-date-of-medi-cal-eligibility
Coverage Eligibility Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-eligibility-code
Coverage Encounter Reference	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-encounterReference
Coverage Gender	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-gender
Coverage Guarantor	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-guarantor
Coverage Note	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-note
Coverage Relationship Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-relationship-code
Coverage Social Security Number	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-social-security-number
Coverage Subscriber Meds ID Number	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-subscriber-meds-id-number
Coverage Subscriber Name	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-subscriber-name
Coverage Subscriber Phone Number	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-subscriber-phone-number
Coverage Subscriber Release Of Information	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverage-subscriber-release-of-information

CoverageEligibilityRequest

Name	URI
CoverageEligibilityRequest Benefit Plan	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityRequest-benefit-plan
CoverageEligibilityRequest Custom Status Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityRequest-custom-status-code
CoverageEligibilityRequest Encounter	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityRequest-encounterReference
CoverageEligibilityRequest Funding Source	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityRequest-funding-source
CoverageEligibilityRequest Program Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityRequest-programCode

CoverageEligibilityResponse

Name	URI
CoverageEligibilityResponse Benefit Plan	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityResponse-benefit-plan
CoverageEligibilityResponse Custom Status Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityResponse-custom-status-code
CoverageEligibilityResponse Encounter	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityResponse-encounterReference
CoverageEligibilityResponse Funding Source	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityResponse-funding-source
CoverageEligibilityResponse Program Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/coverageEligibilityResponse-programCode

Encounter

Name	URI
Encounter Admission Department Time Out	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-admission-department-time-out
Encounter Admission Source	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-admissionSource
Encounter Charge Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-charge-code
Encounter Clinical Summary	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-clinical-summary
Encounter Discharge Alert Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-discharge-alert-code
Encounter Discharge Comments	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-dischargeComments
Encounter Discharge Legal Status	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-dischargeLegalStatus
Encounter Discharge Patient Status	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-dischargePatientStatus
Encounter Disposition Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-disposition-code
Encounter Homeless Indicator Code	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-homeless-indicator-code
Encounter Hospital Service Reference	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-hospitalServiceReference
Encounter Housing Situation	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-housingSituation
Encounter Is Immunization Record Requested	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-is-immunization-record-requested
Encounter Is Informed of Smoking Policy	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-is-informed-of-smoking-policy
Encounter Is Perform Discharge Alert	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-is-perform-discharge-alert
Encounter Is Prescreened	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-is-prescreened
Encounter Is School Record Requested	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-is-school-record-requested
Encounter Military Service	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-military-service
Encounter Note	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-note
Encounter Number of People Living in Household	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-number-of-people-living-in-household
Encounter Practitioner Type code	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-practitioner-type-code
Encounter Partial Hospitalization	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-partial-hospitalization
Encounter Prescreened By	https://fhir.netsmartcloud.com/v4/StructureDefinition/encounter-prescreened-by

Observation

Name	URI
Observation Smoking Status Name	https://fhir.netsmartcloud.com/v4/StructureDefinition/observation-smokingStatusName

Patient

Name	URI
Patient Citizenship	http://hl7.org/fhir/StructureDefinition/patient-citizenship
Patient Communication Preference	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-communication-preference
Patient Custom Ethnicity	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-custom-ethnicity
Patient Custom Race	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-custom-race
Patient Education Level	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-educationLevel
Patient Employment Status	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-employmentStatus
Patient English Proficiency	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-english-proficiency
Patient Family Income	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-family-income
Patient Family Size	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-family-size
Patient Gender Identity	http://hl7.org/fhir/StructureDefinition/patient-genderIdentity
Patient Gender Identity Other	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-genderIdentity-other
Patient Housing Situation	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-housingSituation
Patient Other Ethnic Origins	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-other-ethnic-origins
Patient Preferred Provider Ethnic Origin	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-preferred-provider-ethnic-origins
Patient Preferred Provider Gender	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-preferred-provider-gender
Patient Sexual Orientation	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-sexualOrientation
Patient Sexual Orientation Other	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-sexualOrientation-other
Patient Veteran Status	https://fhir.netsmartcloud.com/v4/StructureDefinition/patient-veteran-status
US Core Birth Sex	http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex
US Core Ethnicity	http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity
US Core Gender Identity	http://hl7.org/fhir/us/core/StructureDefinition/us-core-genderIdentity
US Core Race	http://hl7.org/fhir/us/core/StructureDefinition/us-core-race

Procedure

Name	URI
Procedure Pertaining to Event ID	https://fhir.netsmartcloud.com/v4/StructureDefinition/procedure-pertainingToEventID

Extension Usage Guidelines

Implementation Notes

• Extensions are defined using StructureDefinition resources
• All Netsmart-specific extensions use the base URL: https://fhir.netsmartcloud.com/v4/StructureDefinition/
• Standard HL7 and US Core extensions maintain their original URLs
• Extension support may vary by tenant configuration

Validation Requirements

Before implementing extensions in your application:

1. Retrieve CapabilityStatement - Always get the current CapabilityStatement from /metadata
2. Validate Extension Support - Check that required extensions are listed in the CapabilityStatement
3. Test Implementation - Verify extension usage with actual API calls
4. Monitor Changes - Extensions may be added or deprecated with API updates

Error Handling

For information about error responses when working with extensions, see Common Errors.

Common extension-related errors include:

• Invalid extension URLs
• Unsupported extensions for specific resources
• Malformed extension values
• Missing required extension elements

Related Resources

• CapabilityStatement - View supported extensions per resource
• Resources - Individual resource documentation with extension examples
• Common Errors - Error handling and troubleshooting

Support

For questions about extension support or implementation, contact Netsmart support through your designated support channels.