Mapping Entities with Corresponding ICD-9-CM Codes

Description

This pretrained model maps entities with their corresponding ICD-9-CM codes.

Important Note: Mappers extract additional information such as extended descriptions and categories related to Concept codes (such as RxNorm, ICD10, CPT, MESH, NDC, UMLS, etc.). They generally take Concept Codes, which are the outputs of EntityResolvers, as input. When creating a pipeline that contains ‘Mapper’, it is necessary to use the ChunkMapperModel after an EntityResolverModel.

Predicted Entities

icd9_code

Open in Colab Copy S3 URI

How to use

document_assembler = DocumentAssembler()\
      .setInputCol('text')\
      .setOutputCol('doc')

chunk_assembler = Doc2Chunk()\
      .setInputCols(['doc'])\
      .setOutputCol('ner_chunk')
 
chunkerMapper = ChunkMapperModel\
    .pretrained("icd9_mapper", "en", "clinical/models")\
    .setInputCols(["ner_chunk"])\
    .setOutputCol("mappings")\
    .setRels(["icd9_code"])


mapper_pipeline = Pipeline(stages=[
    document_assembler,
    chunk_assembler,
    chunkerMapper
])


test_data = spark.createDataFrame([["24 completed weeks of gestation"]]).toDF("text")

result = mapper_pipeline.fit(test_data).transform(test_data)
val document_assembler = DocumentAssembler()
    .setInputCol("text")
    .setOutputCol("doc")

val chunk_assembler = Doc2Chunk()
    .setInputCols(Array("doc"))
    .setOutputCol("ner_chunk")
 
val chunkerMapper = ChunkMapperModel
    .pretrained("icd9_mapper", "en", "clinical/models")
    .setInputCols(Array("ner_chunk"))
    .setOutputCol("mappings")
    .setRels(Array("icd9_code"))


val mapper_pipeline = new Pipeline().setStages(Array(
    document_assembler,
    chunk_assembler,
    chunkerMapper))


val test_data = Seq("24 completed weeks of gestation").toDS.toDF("text")

val result = mapper_pipeline.fit(test_data).transform(test_data) 
import nlu
nlu.load("en.map_entity.icd9").predict("""24 completed weeks of gestation""")

Results

+-------------------------------+------------+
|chunk                          |icd9_mapping|
+-------------------------------+------------+
|24 completed weeks of gestation|765.22      |
+-------------------------------+------------+

Model Information

Model Name: icd9_mapper
Compatibility: Healthcare NLP 4.1.0+
License: Licensed
Edition: Official
Input Labels: [ner_chunk]
Output Labels: [mappings]
Language: en
Size: 374.4 KB