Understanding X12 270/271 EQ*98: Professional (Physician) Visit - Office in Practice
A front desk checking whether today's office visit is covered isn't the same question as whether the plan itself is active, and a 271 that only ever answers the general question can leave a copay or coinsurance figure completely unset for the one line item the visit actually needs.
EQ*98 is the EQ segment carrying service type code 98, used in a 270 request to ask a payer specifically about coverage for a professional office visit with a physician, rather than the plan as a whole. It is the value most commonly sent by outpatient and primary care front-desk eligibility checks.
What this element contains
Example
A 270 inquiry scoped to coverage for a physician office visit rather than the plan overall. Synthetic eligibility data.
Where this trips people up
Front-desk systems built to quote a copay at check-in depend on the 271 actually returning visit-level benefit detail, which only shows up reliably when the 270 sent EQ*98 rather than the broader EQ*30. Test data that treats the two as interchangeable can pass every structural check while leaving the copay field genuinely empty in production, because the payer answered the plan-level question the test file happened to ask instead of the visit-level one the UI needed.