Table values

Lint rule to validate coded field values against HL7v2 tables.

What it does

Flags coded field values that are not present in the HL7-defined table referenced by the field's profile. The rule reads profile context attached by @glion/annotate-profile-context, resolves the table by id (stripping the HL7 prefix, so HL70001 looks up table 0001), and checks the first component value of each repetition against the table's code set. Only hl7-type tables are validated; user-defined tables, empty fields, and Z-segments are skipped.

Install

npm install @glion/lint-profile-table-values

Use

import { hl7v2AnnotateProfileContext } from "@glion/annotate-profile-context";
import { hl7v2Parser } from "@glion/parser";
import hl7v2LintTableValues from "@glion/lint-profile-table-values";
import { unified } from "unified";
import { reporter } from "vfile-reporter";

const message = [
  "MSH|^~\\&|SENDER|FAC|RECV|RFAC|20250601120000||ADT^A01^ADT_A01|MSG00001|P|2.5",
  "PID|1||PATID1234^^^HOSP^MR||DOE^JANE||19800101|F",
].join("\r");

const file = await unified()
  .use(hl7v2Parser)
  .use(hl7v2AnnotateProfileContext)
  .use(hl7v2LintTableValues)
  .process(message);

console.error(reporter([file]));

API

`unified().use(hl7v2LintTableValues)`

A unified lint rule plugin. Takes no options.

Reads file.data.profile. For each non-empty field with a declared table reference in its profile, loads the table definition from ctx.tables. If the table is HL7-defined it checks each repetition's first subcomponent value against the table's code set.

import type { Plugin } from "unified";
import type { Root } from "@glion/ast";

declare const hl7v2LintTableValues: Plugin<[], Root>;
export default hl7v2LintTableValues;

What it checks

This rule flags coded values that are not members of the HL7 table referenced by the field's profile. For example, PID-8 (Administrative Sex) references table HL70001, whose v2.5 codes include F, M, O, U, A, N.

Valid

PID-8 is F, which is a valid code in table 0001:

MSH|^~\&|SENDER|FAC|RECV|RFAC|20250601120000||ADT^A01^ADT_A01|MSG00001|P|2.5
PID|1||PATID1234^^^HOSP^MR||DOE^JANE||19800101|F

Invalid

PID-8 is Z, which is not in table 0001:

MSH|^~\&|SENDER|FAC|RECV|RFAC|20250601120000||ADT^A01^ADT_A01|MSG00001|P|2.5
PID|1||PATID1234^^^HOSP^MR||DOE^JANE||19800101|Z

Reported message:

Field PID-8 (Administrative Sex) value 'Z' is not in table 0001 (Administrative Sex)

When the field has a profile name it appears in parentheses. The table id is reported without the HL7 prefix, matching the way the tables store keys its entries. One message is reported per offending repetition.

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