4xx and 5xx
do not.
1. Bootstrap fixtures
cpt_code_id, icd10_code_id, and body_part_id from the response.
2. Create a referral
This uses a tiny valid PDF as a data URL. Thename parameter preserves the
attachment filename. Replace the CPT id from step 1.
order_form, injury_type, incident_date, and visits are required.
payment_type defaults to pi if omitted. cpt_code_id infers modality,
so do not send a modality string.
200 and the referral snapshot, including id.
3. Poll the referral
visits[].status. See Track referral status.

