This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions 
13.3.8 Resource CoverageEligibilityResponse - Mappings
Mappings for the coverageeligibilityresponse resource (see Mappings to Other Standards for further information & status).
CoverageEligibilityResponse | financial.support |
identifier | FiveWs.identifier |
status | FiveWs.status |
purpose | FiveWs.class |
patient | FiveWs.subject[x] |
serviced[x] | FiveWs.done[x] |
created | FiveWs.recorded |
requestor | FiveWs.source |
request | FiveWs.why[x] |
provider | FiveWs.source |
CoverageEligibilityResponse | Event |
identifier | Event.identifier |
status | Event.status |
patient | Event.subject |
request | Event.basedOn |
disposition | Event.note |
CoverageEligibilityResponse | |
preAuthRef | 23 |
CoverageEligibilityResponse | |
identifier | |
status | |
purpose | |
patient | C06,C07,C08, C05, C04 |
event | |
type | |
when[x] | |
serviced[x] | F09 |
created | |
requestor | B01 |
request | A02|G01 |
outcome | |
disposition | |
insurer | |
insurance | |
coverage | |
inforce | |
benefitPeriod | |
item | |
category | |
productOrService | |
modifier | |
provider | B01 |
excluded | |
name | |
description | |
network | |
unit | |
term | |
benefit | |
type | |
allowed[x] | |
used[x] | |
authorizationRequired | |
authorizationSupporting | |
authorizationUrl | |
preAuthRef | F03 |
form | G42 |
error | |
code | |
expression | |