SNOMED CT & UMLS Cross-References

Every ICD-10 code in the AutoICD API is enriched with synonyms and cross-reference identifiers from SNOMED CT and UMLS. Map between clinical terminologies without maintaining your own crosswalks.

What's Included

SNOMED CT Synonyms & Concept IDs

Synonyms extracted from the SNOMED CT US Edition, mapped to ICD-10 codes via the ICD-10-CM Extended Map reference set. Each code includes the corresponding SNOMED CT concept identifiers.

UMLS Synonyms & CUIs

Synonyms from the Unified Medical Language System, with Concept Unique Identifiers (CUIs) linking each ICD-10 code to the broader UMLS Metathesaurus.

Improved Code Matching

SNOMED CT and UMLS synonyms are indexed alongside the standard ICD-10 descriptions. This means clinical text that uses SNOMED-style terminology is matched to the correct ICD-10 codes automatically. no manual mapping required.

API Response

Use the code lookup endpoint or the codes.get() SDK method to retrieve full code details with cross-references.

const detail = await client.codes.get("E11.9");

// detail.synonyms
{
  "snomed": [
    "Diabetes mellitus type 2",
    "Type 2 diabetes",
    "Non-insulin-dependent diabetes mellitus"
  ],
  "umls": [
    "Type 2 DM",
    "Diabetes mellitus, type 2, unspecified"
  ],
  "icd10_augmented": [
    "T2DM",
    "NIDDM"
  ]
}

// detail.cross_references
{
  "snomed": ["44054006"],   // SNOMED CT concept IDs
  "umls": ["C0011860"]      // UMLS CUIs
}

Use Cases

Clinical Data Interoperability

Systems that store data in SNOMED CT can look up the corresponding ICD-10 codes (and vice versa) through a single API call. No separate crosswalk tables needed.

EHR Integration

Use SNOMED concept IDs and UMLS CUIs to link AutoICD results to your EHR's internal terminology system, enabling seamless data exchange between clinical and billing workflows.

Research & Analytics

Cross-reference identifiers make it easy to join ICD-10 coded data with SNOMED CT or UMLS-based datasets for clinical research, quality reporting, or population health analytics.

Browse ICD-10 Codes with SNOMED CT & UMLS

Every code in our ICD-10-CM directory includes SNOMED CT and UMLS synonyms and cross-reference identifiers. Browse codes by condition:

View all conditions · Full code directory

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