LOINC SNOMED CT 8867-4 29463-7 ICD-10
Open Source • University of Pittsburgh

Map proprietary codes to standards, instantly

AI-powered pipeline that transforms your custom EHR codes into LOINC and SNOMED CT standards. Stop wasting weeks on manual mapping. Start analyzing.

Get Started Watch Demo
~$14 per 1,000 codes
Top 3 matches with reasoning
Hybrid two-stage approach
Proprietary Code Pulse Oximetry numerical • avg: 97.64
AI Mapping
LOINC 59408-5 Oxygen saturation in Arterial blood by Pulse oximetry Rank #79
LOINC 2708-6 Oxygen saturation in Arterial blood Rank #248
LOINC 2709-4 Oxygen saturation in Capillary blood Rank #1701
The Challenge

Manual code mapping is a bottleneck

Time-Intensive

Each proprietary code requires individual research and mapping. Thousands of codes means months of work.

Error-Prone

Manual processes lead to inconsistent mappings, missed nuances, and costly mistakes in research data.

Poor Use of Expertise

Your researchers should analyze data, not spend weeks looking up standard codes in spreadsheets.

How It Works

Two-stage intelligent pipeline

Combining semantic search with AI reasoning for accurate, explainable mappings.

01

Vector Similarity Search

Your proprietary codes are embedded using Amazon Titan Text Embeddings V2 (1024 dimensions) and matched against pre-computed standard code embeddings in AWS S3 Vectors.

  • Automatic acronym expansion via Claude
  • Cosine similarity search returns top 30 candidates
  • Re-enhancement for difficult matches (>0.65 distance)
02

AI-Powered Reasoning

Claude Sonnet 4.5 analyzes candidates using clinical context, test purpose, and data characteristics to select the top 3 matches with detailed explanations.

  • Considers test type and clinical purpose
  • Analyzes average values and categories
  • Uses frequency rank data to break ties
Powered by
Amazon Bedrock
AWS S3 Vectors
Claude Sonnet
Titan Embeddings
AWS CDK
See It In Action

From chaos to clarity

Example Mappings

Proprietary Code Context Best Match Standard Code
Heart Rate numerical, avg: 110.64 Heart rate LOINC 8867-4
ETCO2 numerical, avg: 36.18 CO₂ partial pressure in Arterial blood LOINC 2019-8
Ventilator Mode categorical: SIMV, CPAP, PS... Ventilation mode Ventilator LOINC 20124-4
Diastolic BP numerical, avg: 59.39 Diastolic blood pressure LOINC 8462-4
Architecture

Serverless and scalable

Deploy infrastructure with AWS CDK, run locally with Python scripts

EHR Code Mapper Architecture Diagram
1

Infrastructure

AWS CDK deploys S3 Vectors bucket and index

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2

Embed Standards

Generate embeddings for LOINC/SNOMED codes

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3

Map Codes

Process proprietary codes through pipeline

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4

Validate

Review and export validated mappings

Ready to automate your code mapping?

Deploy in minutes. Map thousands of codes. Focus on what matters.

View on GitHub Read Documentation

Cost Estimate

Setup (20K standard codes) ~$0.13
Per 1,000 proprietary codes ~$13.61

Pricing based on Amazon Bedrock and S3 Vectors rates. AWS Pricing Calculator