build-x12
Converts a parsed X12 structure back into a raw X12 string. Handles ISA fixed-length field padding, HL ID regeneration, and SE segment count calculation. Supports all transaction types produced by parse-x12.
Script path: @aidbox-billing/x12/build-x12
Input
| Parameter | Type | Description |
|---|---|---|
parsed | ParsedX12 | Parsed X12 structure (as produced by parse-x12) |
Output
| Field | Type | Description |
|---|---|---|
rawX12 | string | Raw X12 string ready for transmission |
Usage in workflow YAML
- id: build-x12
script: "@aidbox-billing/x12/build-x12"
params:
parsed: $activities.map-to-x12.output.parsed
children: [transmit]
This activity is the last step before transmission in claim submission workflows. A project-specific activity (map-to-x12.ts) typically constructs the ParsedX12 structure from the FHIR Claim, and build-x12 serializes it.