AAA03 — Reject Reason Code (X12 element 901)
42 — Unable to Respond at Current Time
Draft — pending verification
This reference entry has not yet been verified against its authoritative source (X12 005010X217 TR3 / element 901 code list — verify against licensed copy). Do not rely on it for production configuration until this notice is removed.
How 42 is used
Returned in AAA03 with a follow-up action code indicating resubmission. For real-time 278 channels, sustained 42 rates are an availability SLA problem to raise with the payer or clearinghouse.
Example
During a payer maintenance window, real-time 278s return AAA03 = 42; queued retries succeed afterward.
Where it lives in the transaction
42 is a value of AAA03 — Reject Reason Code (X12 element 901), carried in the AAA (Request Validation), 278 response — returned at the loop level where the problem was found of the 278 Health Care Services Review — Response (005010X217). For the payer-side view of how PA Bridge normalizes these codes across X12 and FHIR intake, see the articles section.