Purpose

This WS is designed to create Device Dispense

Key points

Only authenticated and authorized users with appropriate scope can invoke Create Device Dispense
Device Dispense is created in async way. Successful result of the job should return a link on the created Device Dispense (look at [UPD] Get Device dispense details).
Device Dispense can be created only under active Device Request within valid dispense period
Several devices of different manufacturers with the same code can be dispensed at a time
Multiple dispenses to the same Device Request with medical program is not allowed
It is allowed to create Device Dispense for not verified persons

Specification

Apiary

Authorization

Verify the validity of access token
- in case of error - return 401 (“Invalid access token”) in case of validation fails
Verify that token is not expired
- in case of error - return 401 (“Invalid access token”)
Check user and client scopes in order to perform this action (scope = 'device_dispense:write')
- return 403 (“Your scope does not allow to access this resource. Missing allowances: device_dispense:write”) in case of invalid scope(s)
If BLOCK_UNVERIFIED_PARTY_USERS is true, then check party's data match following condition: verification_status != NOT_VERIFIED or (verification_status = NOT_VERIFIED and updated_at > current_date - UNVERIFIED_PARTY_PERIOD_DAYS_ALLOWED):
1. in case not match - return 403 ("Access denied. Party is not verified")
If BLOCK_DECEASED_PARTY_USERS is true, check that party is not deceased (party_verification record does not equal to: dracs_death_verification_status = VERIFIED and dracs_death_verification_reason = MANUAL_CONFIRMED):
1. in case of error - return 403 ("Access denied. Party is deceased")

Validate legal entity

Extract client_id from token
Check legal entity exists and its status is ACTIVE
- In case of error - return 409 ('client_id refers to legal entity that is not active')

Validate dispense

Validate performer

Validate value in the field $.performer, Reference on employee resource, required.

Extract user_id from token. Check that performer belongs to one of the user’s employee.
- in case of error - return 422 ('User is not allowed to create device dispense for the performer')
Check performer is an active and approved employee.
- in case of error - return 422 ('Employee is not active ')
Check performer relates to the legal entity (client_id from token).
- in case of error - return 422 ('Employee does not belong to legal entity from token')

Validate location

Validate value in the field $.location, Reference on division resource, required.

Check that division exists and is_active = true
- in case of error - return 409 ("Division not found")
Check that division status = “ACTIVE”
- in case of error - return 409 ("Division is not active")
Validate division belongs to user's legal entity (client_id from token)
- in case of error - return 409 ("Division does not belong to user's legal entity")
If chart parameter DEVICE_DISPENSE_DIVISION_DLS_VERIFY is on, then validate division is DLS verified (dls_verified=true)
- in case of error - return 409 "Division is not verified in DLS"

Validate status

The target status value must be submitted in the order of display in the signed content (media storage)

Validate $.status is IN_PROGRESS if there are program specified in the dispense , else
1. in case status is COMPLETED - return 409 ("Status is not allowed for Device dispense with Medical program")
2. else - return 422 ("value is not allowed in enum")
Validate $.status is COMPLETED if no program specified
1. in case status is IN_PROGRESS - return 409 ("Status is not allowed for Device dispense without Medical program")
2. else - return 422 ("value is not allowed in enum")

Validate Device request

Validate value in the field $.based_on ($.based_on.identifier.value), Reference on device request, required.

Check that device request exists and has ACTIVE status
- in case of error - return 422 ('Device request not found')
Check that intent specified in Device request is order
- in case of error - return 409 error ('Only device request with intent = 'order' can be dispensed')
If medical_program specified in the Device dispense check that dispense_valid_to (whole day - time must be ignored) is greater or equal to current date
- in case of error - return 409 ('Device request is expired for dispense')

Validate related Care plan

Verify care plan Activity as described in https://e-health-ua.atlassian.net/wiki/spaces/RMDN/pages/17670996847/UPD+Qualify+Device+request#Validate-related-Care-plan

Qualify Device request

This validation must be done only if medical_program exists in request and medical_program is the same as in device request

Check that Device request is valid and available for dispense under this medical program
- Invoke [UPD] Qualify Device request
- Check that program_id is in Qualify response
  - Device request is prohibited for dispense in case $.data[?(@.program_id=device_request.program.identifier.value)].status = 'INVALID' or program_id is absent in qualify response
    - In case of error - return 409 error ('Device request can not be dispensed. Invoke qualify dispense request API to get detailed info')
  - Device request is allowed for dispense in case $.data[?(@.program_id=device_request.program.identifier.value)].status = 'VALID' and program_id is present in qualify response

Check for existing Device dispenses

Check that there is no other IN_PROGRESS device dispenses based on the same device request
- Find all device dispenses related to the same device request ($.based_on)
- Check that there are no records in status in-progress where inserted_at + config device_dispense_ttl >= current date-time()
  - in case of error - return 422 "Other active device dispense already exist."

Validate program

Check that program in dispense is the same as program in device request or empty on both sides(request.program.identifier.value = device_requests.program.identifier.value)
- in case of error - return 409 ('Program in dispense doesn't match the one in device request')
Check that program exists in DB
1. in case of error - return 422 ('Medical program not found')
Сheck that program has is_active set in true and status is 'ACTIVE'
1. in case of error - return 422 error ('Medical program is not active')
If the medical program has no setting skip_contract_provision_verify or it is set in false/null validate:
- Check $.division participates in submitted program. Validate Provision for the medical program:
  - Medical program in the request has funding_source = NHS
    1. In case of error - return reject_reason = "Program was configured incorrectly - incorrect source of funding"
  - Provision exist and active, relates to the $.location and to the actual reimbursement contract: contract.start_date <= current_date <= contract.end_date, is_active = true, status = VERIFIED, contracts.type==reimbursement, contracts.contractor_legal_entity_id=token.client_id, contracts.medical_program_id==$.medical_program_id
    1. in case of error - return reject_reason = "Medical program provision is not related to any actual contract for the current date"
  - Сontract is_suspended = false
    1. in case of error - return reject_reason="Contract with number <contract_number> is suspended"
else if skip_contract_provision_verify = true, then skip provision verification for the medical program

Validate when_handed_over

If medical_program not specified in the Device dispense validate when_handed_over
- check that when_handed_over is greater or equal to Device request. authored_on and less or equal to current date
  - in case of error - return 409 error ('Invalid dispense period')

Validate Dispense details

If Medical program($.program) is specified in the Device dispense, check that details.device is present in the Device dispense, not details.device_code

in case of error - return 409 ('Dispense with device code is not allowed for Device dispenses with a medical program')

Validate device

Check device (device definition) to be dispensed ($.details.device)
- Check code ($.details.device.identifier.type.coding.code) = device_definition
  - in case of error - return 422 ('value is not allowed in enum')
- Get device definition by id ($.details.device.identifier.value)
  - device_definition.is_active = true
    - in case of error - return 422 ('Device definition not found')
- Check that this device definition is compliant with prescribed device
  - If device request contains reference to a device definition in device_request.code_reference
    - Check that device_definition_id in dispense is equal to device_definition_id in the request
  - If device request contains device_request.code
    - Check that device_definition.classification_type is equal to prescribed device definition code in device request (device_request.code)
  - in case of error - return 422 ('Dispensed device doesn’t match with prescribed device')
- Check that packaging_unit matches with quantity.code of the Device Request
  - in case of error - return 422 (Dispensed packaging unit doesn’t match with prescribed packaging unit)
- Check the remainder of the division ($.details.quantity.value/device_definition.packaging_count) is equal to 0
  - in case of error - return reject_reason = “The quantity must be divisible to packaging_count of prescribed Device Definition”

Validate device_code

Check device_code to be dispensed ($.details.device_code)
- Check system($.details.device_code.coding.system) = device_definition_classification_type
  - in case of error - return 422 ('value is not allowed in enum')
- Get device_code from the dictionary device_definition_classification_type ($.details.device_code.coding.code) and check parameter is_active = true
  - in case of error - return 422 ('Device code not found')
- Check that this device code is compliant with prescribed device code:
  - Check device_request.code_reference is not present in the request
    - return an error 422 ('Dispense with device code is not allowed, since the prescription is for device or device definition ')
  - Check device_request.code is equal to device_dispense.device_code
    - in case of error - return 422 ('Dispensed device code doesn’t match with prescribed device code')

Validate program device

Check program device
- Is applicable only if program was passed to request and program device passed to request
  - Check code ($.details.program_device.identifier.type.coding.code) = program_device
    - in case of error - return 422 ('value is not allowed in enum')
  - Check that program device exists in DB and has is_active=true
    - in case of error - return 422 ('Program device not found')
  - Check that program device has validity period (start_date and end_date) within current date
    - in case of error - return 422 ('Program device is not active')
  - Check that program device relates to the device definition in $.details.device
    - in case of error - return 422 ('Program device doesn’t match with device')
  - Check that program device relates to the program in $.program
    - in case of error - return 422 ('Program device doesn’t match with program')
- if program was passed to request and no program device specified
  - find program device related to dispensed device definition and selected program with:
    - active status
    - validity period (start_date and end_date) within current date
      - in case not found - return 422 ('No appropriate participants found for this medical program')
      - in case found more then one - return 422 ('More than one program_device was found. Specify the required in the request')

Validate quantity

Perform the validation if Device request has quantity

Validate quantity value
- If Medical program is specified:
  - Check that dispensed device quantity is equal prescribed quantity in Device Request
    - sum($.details.quantity.value) == device_request.quantity
    - in case of error - return 422 ('Dispensed quantity must be equal to prescribed quantity in Device Request')
- If Medical program is not specified:
  - Check that dispensed device quantity is equal or less then remaining_quantity in Device Request:
    - Select all Device dispenses in status completed related to the Device request
    - Sum quantity in the filtered Device dispenses as dispensed_quantity
    - Calculate remaining_quantity = requested_quantity- dispensed_quantity
      - in case of error - return 422 ('Dispensed quantity must be equal or less then prescribed remaining quantity in Device Request')
Validate quantity units
- Check that quantity.code matches with packaging_unit of the device_request
  - in case of error - return 422 (Does not match the packaging unit of the prescribed device)

Validate discount

Validate sell_price
- Check it is present if medical program is present
  - in case of error - return 422 ('Required property sell_price was not present')
Validate discount_amount
- Check it is present if medical program is present
  - in case of error - return 422 ('Required property discount_amount was not present')
- Check it is absent if medical program is absent
  - in case of error - return 422 ('Property discount_amount shouldn’t be submitted if medical program is absent')
- Calculate allowed reimbursement amount:
  - If reimbursement_type of program_device is PERCENTAGE:
    - If reimbursement_percentage_discount of program_device is zero, then check $.discount_amount is equal to zero too
      - in case of error - return 422 ('Requested discount amount must be equal to 0')
    - Calculate allowed_reimbursement_amount = $.sell_price * program_device.reimbursement_percentage_discount/100
  - If reimbursement_type of program_device is FIXED:
    - Get allowed_reimbursement_amount = program_device.reimbursement_amount
- Check $.discount_amount <= allowed_reimbursement_amount * ($.details.quantity.value/device_definition.packaging_count) + DEVICE_DISPENSE_TOLERANCE
  - in case of error - return 422 ('Requested discount amount must be less or equal to allowed reimbursement amount')
- If allowed_reimbursement_amount > 0, then check the ratio of discount amount to reimbursement amount as $.discount_amount/ (allowed_reimbursement_amount * ($.details.quantity.value/device_definition.packaging_count)) >= 1 - DEVICE_DISPENSE_DEVIATION
  - In case of error - return 422 ('The ratio of requested discount amount to allowed reimbursement amount must be greater or equal to <1 - DEVICE_DISPENSE_DEVIATION>')

Validate verification code

This validation must be done only if medical_program is specified in the request($.program)
- Check that $.verification_code in request is equal to verification_code in device_request
  - In case code exists in request - it should match with code in device_request
    - in case of error - return 403 (message: “Incorrect code“)

Service logic

Fill in the following fields:
- status = IN_PROGRESS if there are program specified in the dispense OR
- status = COMPLETED if no program specified
- status_reason = null
- subject. Set hashed patient_id from URL
- performer_legal_entity. Set client_id from token
- details.quantity.unit. Set description according to quantity code and system
- details.reimbursement_amount. Set calculated above allowed_reimbursement_amount from program_medication if program is present.
- inserted_at. Set current date and time
- updated_at. Set current date and time
- inserted_by. Set current user from token
- updated_by. Set current user from token
- origin_episode_id. Set context_episode_id from device request referenced in based_on
If Device dispenses status is changed to completed and related Device request has a reference on an Activity as device_request.based_on, then
- add the reference on the Device dispense resource to the outcome_reference attribute of the related Activity
- if Activity.status is scheduled change it to in_progress
If there are no Medical program specified in Device dispense AND there is quantity specified in Device request:
1. calculate remaining quantity of the related Device request (same as on [UPD] Get Device request details | Service logic):
  1. Select all Device dispenses in status completed related to the Device request
  2. Sum quantity in the filtered Device dispenses as dispensed_qty
  3. Calculate remaining_quantity = Device_request.quantity- dispensed_quantity
2. If remaining_quantity is equal to Device_dispense.quantity, change status of the related Device request($.based_on) to completed
Save data to device_dispenses collection in MongoDB according to [UPD] Device dispense data model
Send StatusChangeEvent to Event Manager

RС_[UPD] Create Device dispense