EDI Parser – JSON Converter

This C++ program is designed to parse EDI (Electronic Data Interchange) files and convert their structured, delimiter-separated content into readable and usable JSON objects. The parser is built to handle EDI 837-like healthcare claims data, with robust segment and element-level mapping.

---

How It Works

File Reading & Splitting

• EDI lines are split by asterisks (*) using the splitAndStore function to extract individual elements.

Segment Identification

• Each segment (e.g., ISA, GS, NM1) is identified and mapped based on its position and context (e.g., loop names like 2310A, 2010BA).

Data Mapping

• The Map_Elements_General and Map_Elements_Loop functions associate raw EDI element positions (like NM109) with human-readable field names using a predefined map (DataElement_Name_Pairs).

Claim Type Customization

• Handles both Professional and Institutional claims by applying context-specific mappings and flags (e.g., _I suffix).

JSON Output

• The extracted key-value pairs are appended to or written into JSON files, organized by filename, using the map_to_json function with pretty printing.

Extensibility

• The mapping logic is modular, allowing new segment identifiers and loops to be added easily without changing the core parsing logic.

---

Use Case

This tool is ideal for converting raw EDI healthcare claims into structured formats for downstream data analysis, validation, auditing, or integration into modern systems like databases or web applications.