A referral is a formal recommendation from one healthcare provider that a patient see another provider — typically a specialist. In many insurance plans, a referral from a primary care physician (PCP) is required before the patient can see a specialist and have the visit covered.
The referral creates a documented link between the primary care visit and the specialist visit, which insurers use to decide whether to cover the specialist charge.
You’ll hear this when…
“You’ll need a referral for that” is a common response when a patient asks about seeing a specialist. HMO (Health Maintenance Organisation) plans almost always require referrals. PPO (Preferred Provider Organisation) plans generally don’t, which is one of the key differences between the two plan types.
The referral process involves the PCP submitting a referral order (often through the EHR), specifying the reason for the referral, the recommended specialist, and any relevant clinical information. Some plans require both a referral and a prior authorisation — they’re separate processes.
Self-referral
Some plans allow patients to self-refer to certain specialists (dermatologists, OB/GYNs) without going through a PCP first. The rules vary by plan, state, and specialty. When in doubt, checking with the insurance plan before scheduling prevents surprise claim denials.
Source: Healthcare.gov — health insurance terminology