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  • John Snow Labs
  • Sep 11, 2026

Sentence Entity Resolver for SNOMED CT (All Concepts) (bge_base_en_v1_5_onnx embeddings)

  • en
  • snomed
  • resolver
  • licensed
  • clinical
  • general
  • bge

Description

This model maps extracted clinical NER entities to SNOMED CT concepts using bge_base_en_v1_5_onnx embeddings.

It is trained on SNOMED CT US Edition 20260901 release.

Live Demo Open in Colab Copy S3 URI

How to use

documentAssembler = DocumentAssembler()\
    .setInputCol("text")\
    .setOutputCol("document")

sentenceDetectorDL = SentenceDetectorDLModel.pretrained("sentence_detector_dl_healthcare", "en", "clinical/models")\
    .setInputCols(["document"])\
    .setOutputCol("sentence")

tokenizer = Tokenizer()\
    .setInputCols(["sentence"])\
    .setOutputCol("token")

word_embeddings = WordEmbeddingsModel.pretrained("embeddings_clinical","en","clinical/models")\
    .setInputCols(["sentence","token"])\
    .setOutputCol("embeddings")

ner_model = MedicalNerModel.pretrained("ner_jsl","en","clinical/models")\
    .setInputCols(["sentence","token","embeddings"])\
    .setOutputCol("ner_tags")

ner_converter = NerConverterInternal()\
    .setInputCols(["sentence","token","ner_tags"])\
    .setOutputCol("ner_chunk")\
    .setWhiteList(["Injury_or_Poisoning", "Hyperlipidemia", "Kidney_Disease", "Oncological", "Cerebrovascular_Disease", "Oxygen_Therapy", "Heart_Disease", "Obesity", "Disease_Syndrome_Disorder", "Symptom", "Treatment", "Diabetes", "Procedure", "Drug_Ingredient", "VS_Finding", "Communicable_Disease", "Drug_BrandName", "Hypertension", "Imaging_Technique"])

chunk2doc = Chunk2Doc()\
    .setInputCols(["ner_chunk"])\
    .setOutputCol("ner_chunk_doc")

embedder = BGEEmbeddings.pretrained("bge_base_en_v1_5_onnx", "en")\
    .setInputCols(["ner_chunk_doc"])\
    .setOutputCol("bge_embeddings")\
    .setCaseSensitive(False)

resolver = SentenceEntityResolverModel.pretrained("bgeresolve_snomed_20260901","en","clinical/models")\
    .setInputCols(["bge_embeddings"])\
    .setOutputCol("snomed_code")\
    .setDistanceFunction("EUCLIDEAN")\
    .setThreshold(1000)

pipeline = Pipeline(stages=[\
    documentAssembler, sentenceDetectorDL, tokenizer, word_embeddings, ner_model, ner_converter, chunk2doc, embedder, resolver\
])

data = spark.createDataFrame([["The patient with inflammatory bowel disease presented with dyspnea and abdominal pain. She underwent a laparoscopic appendectomy and was started on aspirin."]]).toDF("text")
result = pipeline.fit(data).transform(data)

documentAssembler = nlp.DocumentAssembler()\
    .setInputCol("text")\
    .setOutputCol("document")

sentenceDetectorDL = nlp.SentenceDetectorDLModel.pretrained("sentence_detector_dl_healthcare", "en", "clinical/models")\
    .setInputCols(["document"])\
    .setOutputCol("sentence")

tokenizer = nlp.Tokenizer()\
    .setInputCols(["sentence"])\
    .setOutputCol("token")

word_embeddings = nlp.WordEmbeddingsModel.pretrained("embeddings_clinical","en","clinical/models")\
    .setInputCols(["sentence","token"])\
    .setOutputCol("embeddings")

ner_model = medical.NerModel.pretrained("ner_jsl","en","clinical/models")\
    .setInputCols(["sentence","token","embeddings"])\
    .setOutputCol("ner_tags")

ner_converter = medical.NerConverterInternal()\
    .setInputCols(["sentence","token","ner_tags"])\
    .setOutputCol("ner_chunk")\
    .setWhiteList(["Injury_or_Poisoning", "Hyperlipidemia", "Kidney_Disease", "Oncological", "Cerebrovascular_Disease", "Oxygen_Therapy", "Heart_Disease", "Obesity", "Disease_Syndrome_Disorder", "Symptom", "Treatment", "Diabetes", "Procedure", "Drug_Ingredient", "VS_Finding", "Communicable_Disease", "Drug_BrandName", "Hypertension", "Imaging_Technique"])

chunk2doc = nlp.Chunk2Doc()\
    .setInputCols(["ner_chunk"])\
    .setOutputCol("ner_chunk_doc")

embedder = nlp.BGEEmbeddings.pretrained("bge_base_en_v1_5_onnx", "en")\
    .setInputCols(["ner_chunk_doc"])\
    .setOutputCol("bge_embeddings")\
    .setCaseSensitive(False)

resolver = medical.SentenceEntityResolverModel.pretrained("bgeresolve_snomed_20260901","en","clinical/models")\
    .setInputCols(["bge_embeddings"])\
    .setOutputCol("snomed_code")\
    .setDistanceFunction("EUCLIDEAN")\
    .setThreshold(1000)

pipeline = nlp.Pipeline(stages=[\
    documentAssembler, sentenceDetectorDL, tokenizer, word_embeddings, ner_model, ner_converter, chunk2doc, embedder, resolver\
])

data = spark.createDataFrame([["The patient with inflammatory bowel disease presented with dyspnea and abdominal pain. She underwent a laparoscopic appendectomy and was started on aspirin."]]).toDF("text")
result = pipeline.fit(data).transform(data)


val documentAssembler = new DocumentAssembler()
    .setInputCol("text")
    .setOutputCol("document")

val sentenceDetectorDL = SentenceDetectorDLModel
    .pretrained("sentence_detector_dl_healthcare", "en", "clinical/models")
    .setInputCols(Array("document"))
    .setOutputCol("sentence")

val tokenizer = new Tokenizer()
    .setInputCols("sentence")
    .setOutputCol("token")

val word_embeddings = WordEmbeddingsModel
    .pretrained("embeddings_clinical", "en", "clinical/models")
    .setInputCols(Array("sentence", "token"))
    .setOutputCol("embeddings")

val ner_model = MedicalNerModel
    .pretrained("ner_jsl", "en", "clinical/models")
    .setInputCols(Array("sentence", "token", "embeddings"))
    .setOutputCol("ner_tags")

val ner_converter = new NerConverterInternal()
    .setInputCols(Array("sentence", "token", "ner_tags"))
    .setOutputCol("ner_chunk")
    .setWhiteList(Array("Injury_or_Poisoning", "Hyperlipidemia", "Kidney_Disease", "Oncological", "Cerebrovascular_Disease", "Oxygen_Therapy", "Heart_Disease", "Obesity", "Disease_Syndrome_Disorder", "Symptom", "Treatment", "Diabetes", "Procedure", "Drug_Ingredient", "VS_Finding", "Communicable_Disease", "Drug_BrandName", "Hypertension", "Imaging_Technique"))

val chunk2doc = new Chunk2Doc()
    .setInputCols(Array("ner_chunk"))
    .setOutputCol("ner_chunk_doc")

val embedder = BGEEmbeddings
    .pretrained("bge_base_en_v1_5_onnx", "en")
    .setInputCols(Array("ner_chunk_doc"))
    .setOutputCol("bge_embeddings")
    .setCaseSensitive(false)

val resolver = SentenceEntityResolverModel
    .pretrained("bgeresolve_snomed_20260901", "en", "clinical/models")
    .setInputCols(Array("bge_embeddings"))
    .setOutputCol("snomed_code")
    .setDistanceFunction("EUCLIDEAN")
    .setThreshold(1000)

val pipeline = new Pipeline().setStages(Array(
    documentAssembler, sentenceDetectorDL, tokenizer, word_embeddings, ner_model, ner_converter, chunk2doc, embedder, resolver
))

val data = Seq("The patient with inflammatory bowel disease presented with dyspnea and abdominal pain. She underwent a laparoscopic appendectomy and was started on aspirin.").toDF("text")
val res = pipeline.fit(data).transform(data)

Results

| chunk                      | label                     |   snomed_code | resolution                 | all_codes                                                                           | all_resolutions                                                                     |
|:---------------------------|:--------------------------|--------------:|:---------------------------|:------------------------------------------------------------------------------------|:------------------------------------------------------------------------------------|
| inflammatory bowel disease | Disease_Syndrome_Disorder |      24526004 | inflammatory bowel disease | 24526004:::34000006:::1197732001:::397173003:::397172008:::700104004:::928100014... | inflammatory bowel disease:::crohns disease:::colorectal crohn disease:::crohn d... |
| dyspnea                    | Symptom                   |     267036007 | dyspnea                    | 267036007:::719415004:::34560001:::25209001:::870535009:::60845006:::161938003::... | dyspnea:::dyspnea care:::expiratory dyspnea:::inspiratory dyspnea:::chronic dysp... |
| abdominal pain             | Symptom                   |      21522001 | abdominal pain             | 21522001:::271681002:::43364001:::43478001:::116290004:::162042000:::54586004:::... | abdominal pain:::stomach pain:::abdominal discomfort:::abdominal tenderness:::ac... |
| laparoscopic appendectomy  | Procedure                 |       6025007 | laparoscopic appendectomy  | 6025007:::80146002:::174041007:::1156321000:::307581005:::17041004:::49586007:::... | laparoscopic appendectomy:::appendectomy:::laparoscopic emergency appendectomy::... |
| aspirin                    | Drug_Ingredient           |     387458008 | aspirin                    | 387458008:::432909005:::135800003:::25796002:::717854002:::312452009:::7947003::... | aspirin:::aspirin given:::aspirin indicated:::aluminium aspirin:::aspirin therap... |

Model Information

Model Name: bgeresolve_snomed_20260901
Compatibility: Healthcare NLP 6.4.1+
License: Licensed
Edition: Official
Input Labels: [bge_embeddings]
Output Labels: [snomed_code]
Language: en
Size: 2.1 GB
Case sensitive: false