LOINC

Auth Required (LOINC) 3 tools

Lab and clinical observation codes. Search tests, lookup codes, navigate hierarchy.

Overview

LOINC (Logical Observation Identifiers Names and Codes) is the universal standard for identifying medical laboratory observations and clinical measurements, including lab tests, vital signs, and survey instruments.

Prerequisites

Free registration required at loinc.org/register.

Available Tools

Tool	Description
`loinc_lookup`	Look up a LOINC code
`loinc_search`	Search codes by term
`loinc_hierarchy`	Get parent/child codes

Configuration

{
  "mcpServers": {
    "loinc": {
      "command": "/path/to/loinc-mcp",
      "env": {
        "LOINC_USERNAME": "your-username",
        "LOINC_PASSWORD": "your-password"
      }
    }
  }
}

LOINC Parts

Each LOINC code describes:

Component: What is measured (e.g., Glucose)
Property: Type of property (e.g., Mass concentration)
Time: Point in time vs over time
System: Specimen type (e.g., Blood, Serum)
Scale: Quantitative, ordinal, nominal
Method: Measurement technique (optional)

See example queries