# OMOPHub.com API

## Docs

- [Batch Concepts](https://docs.omophub.com/api-reference/concepts/batch-concepts.md): Retrieve multiple concepts in a single request
- [Batch Hierarchy Queries](https://docs.omophub.com/api-reference/concepts/batch-hierarchy-queries.md): Perform multiple hierarchy queries in a single request for efficient bulk processing
- [Batch Relationship Queries](https://docs.omophub.com/api-reference/concepts/batch-relationship-queries.md): Perform multiple relationship queries in a single request for efficient bulk processing
- [Check Concept Relations](https://docs.omophub.com/api-reference/concepts/check-concept-relations.md): Check if a concept has any relationships without returning the full relationship data
- [Get Concept](https://docs.omophub.com/api-reference/concepts/get-concept.md): Get detailed information about a specific medical concept
- [Get Concept by Code](https://docs.omophub.com/api-reference/concepts/get-concept-by-code.md): Look up a concept using its vocabulary-specific code
- [Get Concept Level](https://docs.omophub.com/api-reference/concepts/get-concept-level.md): Get basic hierarchical level and depth information for a concept
- [Get Concept Relationships](https://docs.omophub.com/api-reference/concepts/get-concept-relationships.md): Get all relationships for a specific concept
- [Get Trending Concepts](https://docs.omophub.com/api-reference/concepts/get-concept-trending.md): Retrieve trending concepts based on search frequency and usage patterns.
- [Get Related Concepts](https://docs.omophub.com/api-reference/concepts/get-related-concepts.md): Find conceptually related concepts through relationship analysis
- [Get Relationship Options](https://docs.omophub.com/api-reference/concepts/get-relationship-options.md): Get available relationship types for a specific concept
- [Recommended Concepts](https://docs.omophub.com/api-reference/concepts/recommended-concepts.md): Get concept recommendations using the OHDSI Phoebe algorithm
- [Suggest Concepts](https://docs.omophub.com/api-reference/concepts/suggest-concepts.md): Get concept suggestions based on partial input
- [Traverse Relationships](https://docs.omophub.com/api-reference/concepts/traverse-relationships.md): Traverse relationship networks to discover connected concepts
- [Get Concept Classes](https://docs.omophub.com/api-reference/domains/get-concept-classes.md): Retrieve all available concept classes that categorize medical concepts
- [Get Domain Concepts](https://docs.omophub.com/api-reference/domains/get-domain-concepts.md): Retrieve all concepts within a specific domain
- [Get Domain Statistics](https://docs.omophub.com/api-reference/domains/get-domain-statistics.md): Get statistical overview for a specific OMOP domain
- [Get Domains](https://docs.omophub.com/api-reference/domains/get-domains.md): Retrieve all available domains that categorize medical concepts into high-level semantic groups
- [Errors](https://docs.omophub.com/api-reference/errors.md): Troubleshoot problems with this comprehensive breakdown of all error codes.
- [Get Concept Ancestors](https://docs.omophub.com/api-reference/hierarchy/get-concept-ancestors.md): Retrieve all ancestor concepts for a given concept, providing hierarchical context and classification paths
- [Get Concept Descendants](https://docs.omophub.com/api-reference/hierarchy/get-concept-descendants.md): Retrieve all descendant concepts for a given concept, providing hierarchical children and specialized terms
- [Get Concept Hierarchy](https://docs.omophub.com/api-reference/hierarchy/get-concept-hierarchy.md): Retrieve complete hierarchical context for a concept, including both ancestors and descendants in a unified view
- [Introduction](https://docs.omophub.com/api-reference/introduction.md): Understand general concepts, response codes, and authentication strategies.
- [Batch Map Concepts](https://docs.omophub.com/api-reference/mappings/batch-map-concepts.md): Perform multiple concept mapping operations in a single request
- [Get Concept Mappings](https://docs.omophub.com/api-reference/mappings/get-concept-mappings.md): Get mappings from a concept to concepts in other vocabularies
- [Get Mapping Coverage](https://docs.omophub.com/api-reference/mappings/get-mapping-coverage.md): Analyze mapping coverage between a source and target vocabulary
- [Get Mapping Quality](https://docs.omophub.com/api-reference/mappings/get-mapping-quality.md): Analyze mapping quality between two vocabularies to assess reliability and trustworthiness of cross-vocabulary translations
- [Map Concepts](https://docs.omophub.com/api-reference/mappings/map-concepts.md): Map medical concepts between different vocabularies to find equivalent or related concepts across terminology systems.
- [Validate Mappings](https://docs.omophub.com/api-reference/mappings/validate-mappings.md): Validate the accuracy and quality of concept mappings between vocabularies
- [Rate Limit](https://docs.omophub.com/api-reference/rate-limit.md): Understand rate limits and how to increase them.
- [Get Concept Relationships](https://docs.omophub.com/api-reference/relationships/get-concept-relationships.md): Retrieve all relationships for a specific concept
- [Get Relationship Types](https://docs.omophub.com/api-reference/relationships/get-relationship-types.md): Retrieve all available relationship types in the OMOP CDM vocabulary system
- [Advanced Search](https://docs.omophub.com/api-reference/search/advanced-search.md): Perform multi-criteria search across healthcare vocabularies with advanced filtering
- [Basic Concept Search](https://docs.omophub.com/api-reference/search/basic-search.md): Search for medical concepts across vocabularies
- [Bulk Search](https://docs.omophub.com/api-reference/search/bulk-search.md): Perform search operations on multiple queries simultaneously with optimized batch processing and consolidated results.
- [Get Similar Concepts by ID](https://docs.omophub.com/api-reference/search/get-search-similar-by-id.md): Find medical concepts similar to a specific concept identified by its OMOP concept ID using semantic similarity algorithms.
- [Search Autocomplete](https://docs.omophub.com/api-reference/search/search-autocomplete.md): Get real-time autocomplete suggestions for medical terminology searches with optional phonetic matching.
- [Search Facets](https://docs.omophub.com/api-reference/search/search-facets.md): Retrieve search facets for filtering medical terminology search results by vocabulary, domain, concept class, and standard concept status.
- [Search Similar Concepts](https://docs.omophub.com/api-reference/search/search-similar.md): Find semantically similar medical concepts using advanced machine learning algorithms with flexible search criteria and body parameters.
- [Search Suggest](https://docs.omophub.com/api-reference/search/search-suggest.md): Get intelligent search suggestions and alternative query recommendations based on user intent, medical context, and search patterns.
- [Search Trending](https://docs.omophub.com/api-reference/search/search-trending.md): Retrieve trending and popular search queries based on usage patterns and analytics data
- [Semantic Search](https://docs.omophub.com/api-reference/search/semantic-search.md): Find medical concepts using natural language and AI-powered semantic similarity
- [Get Vocabulary Details](https://docs.omophub.com/api-reference/vocabularies/get-vocabulary.md): Get detailed information about a specific vocabulary
- [Get Vocabulary Concept Classes](https://docs.omophub.com/api-reference/vocabularies/get-vocabulary-concept-classes.md): Retrieve all concept classes from the vocabulary system
- [Get Vocabulary Concepts](https://docs.omophub.com/api-reference/vocabularies/get-vocabulary-concepts.md): Get concepts within a specific vocabulary
- [Get Vocabulary Domain Statistics](https://docs.omophub.com/api-reference/vocabularies/get-vocabulary-domain-stats.md): Get statistics for a specific domain within a vocabulary
- [Get Vocabulary Domains](https://docs.omophub.com/api-reference/vocabularies/get-vocabulary-domains.md): Retrieve all standard OHDSI domains available in the vocabulary system.
- [Get Vocabulary Releases](https://docs.omophub.com/api-reference/vocabularies/get-vocabulary-releases.md): Retrieve a list of all available OHDSI vocabulary dataset releases.
- [Get Vocabulary Statistics](https://docs.omophub.com/api-reference/vocabularies/get-vocabulary-stats.md): Retrieve comprehensive statistics for a specific vocabulary including concept counts and domain distribution.
- [List Vocabularies](https://docs.omophub.com/api-reference/vocabularies/list-vocabularies.md): Get a paginated list of all available medical vocabularies
- [Search Vocabularies](https://docs.omophub.com/api-reference/vocabularies/search-vocabularies.md): Search across vocabulary names and descriptions
- [Overview](https://docs.omophub.com/authentication/overview.md): Understanding authentication options for API access
- [AI & LLM Integration](https://docs.omophub.com/guides/integration/ai-llm-integration.md): Grounding intelligence in clinical standards. Pair LLMs with OMOPHub vocabulary lookups to eliminate hallucinated codes, build grounded clinical chatbots, and verify every concept ID against the OMOP source of truth
- [EHR Integration](https://docs.omophub.com/guides/integration/ehr-integration.md): Making data invisible and useful. Resolve EHR-native codes to standardized OMOP concepts for real-time clinical decision support, lab normalization, and bidirectional EHR integration
- [FHIR Integration](https://docs.omophub.com/guides/integration/fhir-integration.md): A resource-by-resource cookbook for OMOPHub. Resolve FHIR CodeableConcepts to standard OMOP concept IDs - from Observations to Measurements, MedicationStatements to Drug Exposures, and beyond
- [Clinical Coding Automation](https://docs.omophub.com/guides/use-cases/clinical-coding.md): Unlocking the power of OMOPHub for automated clinical coding workflows. Rrom raw text to standardized OMOP concepts.
- [Clinical Trial Eligibility Screening](https://docs.omophub.com/guides/use-cases/clinical-trial-eligibility.md): Finding the needle in the OMOP haystack. Resolve trial criteria to standardized concept sets and screen patients using hierarchy expansion and set-based matching
- [Collaborative Mapping](https://docs.omophub.com/guides/use-cases/collaborative-mapping.md): Break the silo tax by using OMOPHub to build shareable source_to_concept_map files that accelerate multi-site OMOP mapping.
- [Drug Interaction Checking](https://docs.omophub.com/guides/use-cases/drug-interaction-checking.md): Moving beyond alert fatigue with OMOPHub. Resolve drug names to standardized ingredients via the RxNorm hierarchy for smarter DDI checking.
- [Gap Analysis and OHDSI Contributions](https://docs.omophub.com/guides/use-cases/gap-analysis-contributions.md): Spotting the missing links in standard vocabularies. Use OMOPHub to automate gap detection and build focused shortlists for OHDSI community contributions.
- [Insurance Claims Processing](https://docs.omophub.com/guides/use-cases/insurance-claims-processing.md): Bridging the billing vs. clinical divide. Standardize CPT, ICD-10, and HCPCS billing codes to OMOP clinical concepts for medical necessity review, fraud detection, and risk adjustment
- [Laboratory Result Mapping](https://docs.omophub.com/guides/use-cases/laboratory-result-mapping.md): Bridging the gap from local lab-speak to LOINC. Map messy lab names to standardized codes using OMOPHub vocabulary search
- [Lean ETL Mapping Cache](https://docs.omophub.com/guides/use-cases/lean-etl-mapping-cache.md): Build validated mapping caches with OMOPHub during development and apply them locally at production speed - no full vocabulary load required.
- [Phenotype Development & Concept Set Expansion](https://docs.omophub.com/guides/use-cases/phenotype-development.md): Uncovering the hidden codes of clinical research. Build comprehensive concept sets using OMOPHub hierarchy, mapping, and semantic search APIs
- [Population Health Analytics](https://docs.omophub.com/guides/use-cases/population-health-analytics.md): From data points to public health action. Analyze population health trends using OMOPHub hierarchy expansion, cross-vocabulary mapping, and OMOP CDM SQL queries
- [Vocabulary Lifecycle Management](https://docs.omophub.com/guides/use-cases/vocabulary-lifecycle-management.md): Automate detection of stale vocabularies and deprecated concepts with OMOPHub, so you update from Athena only when it matters.
- [Introduction](https://docs.omophub.com/introduction.md): OMOPHub provides a healthcare vocabulary API with OHDSI and OMOP-compliant medical terminology access for developers.
- [Quick Start](https://docs.omophub.com/quickstart.md): Get up and running with the OMOPHub API in 5 minutes
- [Concepts](https://docs.omophub.com/sdks/python/concepts.md): Working with medical concepts in the Python SDK
- [Domains](https://docs.omophub.com/sdks/python/domains.md): Working with OMOP domains in the Python SDK
- [Error Handling](https://docs.omophub.com/sdks/python/error-handling.md): Handle API errors gracefully
- [Mappings](https://docs.omophub.com/sdks/python/mappings.md): Map concepts between vocabularies
- [Introduction](https://docs.omophub.com/sdks/python/overview.md): Get started with the OMOPHub Python SDK
- [Search](https://docs.omophub.com/sdks/python/search.md): Search for medical concepts
- [Vocabularies](https://docs.omophub.com/sdks/python/vocabularies.md): Working with OMOP vocabularies in the Python SDK
- [Concepts](https://docs.omophub.com/sdks/r/concepts.md): Working with medical concepts in the R SDK
- [Domains](https://docs.omophub.com/sdks/r/domains.md): Working with OMOP domains in the R SDK
- [Error Handling](https://docs.omophub.com/sdks/r/error-handling.md): Handle API errors gracefully
- [Mappings](https://docs.omophub.com/sdks/r/mappings.md): Map concepts between vocabularies
- [Introduction](https://docs.omophub.com/sdks/r/overview.md): Get started with the OMOPHub R SDK
- [Search](https://docs.omophub.com/sdks/r/search.md): Search for medical concepts
- [Vocabularies](https://docs.omophub.com/sdks/r/vocabularies.md): Working with OMOP vocabularies in the R SDK
- [Vocabulary Releases](https://docs.omophub.com/vocabulary-versions.md): Learn more about available vocabulary release versions, how to select them, and version management

## OpenAPI Specs

- [openapi](https://docs.omophub.com/api-reference/openapi.json)