This case-sensitive code system http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp defines the following codes:

Code	Display	Definition
claims-processing	Claim Processing	Request for data necessary from payers to support claims for services.
preauth-processing	Pre-authorization Processing	Request for data necessary from payers to support pre-authorization for services.
risk-adjustment	Risk Adjustment	Request for data from payers to calculate differences in beneficiary-level risk factors that can affect quality outcomes or medical costs, regardless of the care provided.
quality-metrics	Quality Metrics	Request for data used for aggregation, calculation and analysis, and ultimately reporting of quality measures.
referral	Referral	Request for additional clinical information from referring provider to support performing the requested service.
social-care	Social Care	Request for data from payers to support the non-medical social needs of individuals, especially the elderly, vulnerable or with special needs.
authorization-other	Other Authorization	Request for data from payers for other authorization request not otherwise specified.
care-coordination	Care Coordination	Request for data from payers to create a complete clinical record for each of their members to improve care coordination and provide optimum medical care.
documentation-general	General Documentation	Request for data used from payers or providers for general documentation.
orders	Orders	Request for additional clinical information from referring provider to support orders.
patient-status	Patient Status	Requests for patient health record information from payers to support their payer member records.
signature	Signature	Request for signatures from payers or providers on requested data.
care-planning	Care Planning	Request for data from payers or providers to determine how to deliver care for a particular patient, group or community.
social-risk	Social Risk	Request for data from payers or other providers to assess of social risk, establishing coded health concerns/problems, creating patient driven goals, managing interventions, and measuring outcomes.
operations-noe	Operations Not Otherwise Enumerated	Existing concepts do not define a more detailed [Healthcare Operations as defined by HIPAA](https://www.hhs.gov/hipaa/for-professionals/privacy/guidance/disclosures-treatment-payment-health-care-operations/index.html). Therefore, implicit in using this code is that an implementer must supply an additional, alternate code.
payment-noe	Payment Not Otherwise Enumerated	[Existing concepts do not define a more detailed [Payment as defined by HIPAA](https://www.hhs.gov/hipaa/for-professionals/privacy/guidance/disclosures-treatment-payment-health-care-operations/index.html). Therefore, implicit in using this code is that an implementer must supply an additional, alternate code.
treatment-noe	Treatment Not Otherwise Enumerated	Existing concepts do not define a more detailed [Treatment as defined by HIPAA](https://www.hhs.gov/hipaa/for-professionals/privacy/guidance/disclosures-treatment-payment-health-care-operations/index.html). Therefore, implicit in using this code is that an implementer must supply an additional, alternate code.
purpose-of-use	Purpose Of Use	Purpose of use for the requested data.
signature-flag	Signature Flag	Flag to indicate whether the requested data requires a signature.
tracking-id	Tracking Id	A business identifier that ties requested attachments back to the claim or prior-authorization (referred to as the “re-association tracking control numbers”).
multiple-submits-flag	Multiple Submits Flag	Flag to indicate whether the requested data can be submitted in multiple transactions. If true the data can be submitted in separate transactions. if false *all* the data should be submitted in a single transaction.
payer-url	Payer URL	$submit-attachment operation endpoint where the requested data can be submitted
service-date	Service Date	Date of service or starting date of the service for the claim or prior authorization.
attachment-request-code	Coded Attachment Request	A Task by a Payer requesting attachments for a Provider claim or prior-authorization using LOINC attachment codes.
data-request-code	Data Request Code	A Task requesting data using a code.
data-request-query	Data Request Query	A Task requesting data using FHIR query syntax.
data-request-questionnaire	Data Request Questionnaire	A Task requesting data using a data request questionnaire ([FHIR Questionnaire](http://hl7.org/fhir/questionnaire.html)).
attachment-request-questionnaire	Attachment Request Questionnaire	A Task by a Payer requesting attachments or additional data for a Provider claim or prior-authorization using a data request questionnaire ([FHIR Questionnaire](http://hl7.org/fhir/questionnaire.html)).