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LOINC Laboratory Code Lookup
x402
LOINC Laboratory Code Lookup is a paid API for AI agents from api.healthtravel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Searches Regenstrief LOINC codes by term and returns matching LOINC numbers and long common names via NLM Clinical Tables
Price / call$0.002
Success—
StatusUnknown
How this service works
Regenstrief LOINC laboratory and clinical test codes (via NLM Clinical Tables): LOINC number and long common name matching a term, with total match count. Codes and names only, no units or reference ranges. Up to 20 per call.
Output
Returns a list of up to 20 LOINC entries, each containing a LOINC number (e.g. '4548-4') and its long common name (e.g. 'Hemoglobin A1c/Hemoglobin.total in Blood'), along with the total count of matching records in the LOINC database. Does not include units, reference ranges, or clinical context.
Example use cases
EHR interoperability code mapping
“I'm building a FHIR-compliant lab result system — can you find the LOINC codes for 'serum creatinine' and return up to 10 matches so I can map our internal test names to standard codes?”
Clinical decision support enrichment
“What are the LOINC codes that match 'thyroid stimulating hormone'? I need the LOINC numbers and full names for up to 8 results to tag our lab orders correctly.”
Research dataset standardization
“I have a dataset with lab test names and need to standardize them — can you search LOINC for 'complete blood count' and give me the top 20 matching codes and their long common names?”
Technical details
Endpoint
GEThttps://api.healthtravel-api.workers.dev/api/health/loinc-laboratory-codes?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need standardized LOINC identifiers for laboratory or clinical observation terms — particularly for FHIR mapping, HL7 interoperability, research dataset annotation, or EHR integration. Prefer it over free-text clinical NLP tools when you specifically need official Regenstrief LOINC codes. Not suitable if you also need reference ranges, units of measure, or clinical interpretation guidance.
Side effects
- Term shorter than 2 or longer than 60 characters returns a validation error
- Max value outside 1-20 range is rejected
- No matches found returns empty result list with total count of 0
- NLM Clinical Tables upstream service unavailable causes a proxy error
- Non-English or highly abbreviated terms may return zero or irrelevant matches
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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