{"uid":"cap_ZJ7g7Q5UgtSLrUmyBSIw5","slug":"loinc-laboratory-code-lookup-e6b3e556","name":"LOINC Laboratory Code Lookup","description":"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.","url":"https://api.healthtravel-api.workers.dev/api/health/loinc-laboratory-codes?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["term"],"properties":{"max":{"type":"string","description":"How many codes, 1 to 20 (default 10)"},"term":{"type":"string","description":"Words to search in LOINC names, 2 to 60 characters"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9GJ89o8QkPlTO-_BjiPvM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Searches Regenstrief LOINC codes by term and returns matching LOINC numbers and long common names via NLM Clinical Tables","exampleAgentPrompt":"Can you look up LOINC codes matching 'hemoglobin A1c' and give me the top 5 results with their LOINC numbers and long names?","exampleUseCases":[{"title":"EHR interoperability code mapping","prompt":"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?"},{"title":"Clinical decision support enrichment","prompt":"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."},{"title":"Research dataset standardization","prompt":"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?"}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:43:43.328Z","isFirstParty":false,"canonicalSlug":"loinc-laboratory-code-lookup-e6b3e556"}