This code system http://hl7.org/fhir/payment-kind defines the following codes:

Code Display Definition
deposit Deposit on Account The payment or adjustment is to an indicated account not to a specific charge.
periodic-payment Periodic Payment The payment is one of a set of previously agreed payments, for example in fullfilment of a payment plan.
online Online Bill Payment Payment, full or partial, of an invoice or statement provided to the payment issuer.
kiosk Kiosk Payment Payment made at an authorized Kiosk.
<status value="active"/> <experimental value="false"/> <publisher value="FHIR Project team"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> </contact> <description value="This value set contains codes for the type of workflow from which payments arise."/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <copyright value="HL7 Inc."/> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/payment-kind"/> <content value="complete"/> <concept> <code value="deposit"/> <display value="Deposit on Account"/> <definition value="The payment or adjustment is to an indicated account not to a specific charge."/> </concept> <concept> <code value="periodic-payment"/> <display value="Periodic Payment"/> <definition value="The payment is one of a set of previously agreed payments, for example in fullfilment of a payment plan."/> </concept> <concept> <code value="online"/> <display value="Online Bill Payment"/> <definition value="Payment, full or partial, of an invoice or statement provided to the payment issuer."/> </concept> <concept> <code value="kiosk"/> <display value="Kiosk Payment"/> <definition value="Payment made at an authorized Kiosk."/> </concept> </CodeSystem>