# Document history for Amazon Comprehend Medical
The following table describes the documentation for this release of Amazon Comprehend Medical.
| Change | Description | Date |
| --- |--- |--- |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-19-26-InferSNOMEDCT) | The `InferSNOMEDCT` API operation now uses version `3.3.0.20220301`. | March 19, 2026 |
| [Updated API version for InferRxNorm](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-19-26-InferRxNorm) | The `InferRxNorm` API operation now uses version `3.3.0.20221107`. | March 19, 2026 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-19-26-InferICD10CM) | The `InferICD10CM` API operation now uses version `3.3.0.20251001`. | March 19, 2026 |
| [Updated API version for DetectEntitiesV2](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-19-26-DetectEntitiesV2) | The `DetectEntitiesV2` API operation now uses version `3.3.0`. | March 19, 2026 |
| [Updated API version for DetectEntities](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-19-26-DetectEntities) | The `DetectEntities` API operation now uses version `3.3.0`. | March 19, 2026 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-11-03-25-InferSNOMEDCT) | The `InferSNOMEDCT` API operation now uses version `3.2.0.20220301`. | November 3, 2025 |
| [Updated API version for InferRxNorm](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-11-03-25-InferRxNorm) | The `InferRxNorm` API operation now uses version `3.2.0.20221107`. | November 3, 2025 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-11-03-25-InferICD10CM) | The `InferICD10CM` API operation now uses version `3.2.0.20251001`. | November 3, 2025 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-08-05-25-InferSNOMEDCT) | The `InferSNOMEDCT` API operation now uses version `3.1.0.20220301`. | August 5, 2025 |
| [Updated API version for InferRxNorm](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-08-05-25-InferRxNorm) | The `InferRxNorm` API operation now uses version `3.1.0.20221107`. | August 5, 2025 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-08-05-25-InferICD10CM) | The `InferICD10CM` API operation now uses version `3.1.0.20250401`. | August 5, 2025 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-26-24-InferSNOMEDCT) | The `InferSNOMEDCT` API operation now uses version `3.0.0.20220301`. | June 26, 2024 |
| [Updated API version for InferRxNorm](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-26-24-InferRxNorm) | The `InferRxNorm` API operation now uses version `3.0.0.20221107`. | June 26, 2024 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-26-24-InferICD10CM) | The `InferICD10CM` API operation now uses version `3.0.0.20231001`. | June 26, 2024 |
| [Updated API version for DetectEntitiesV2](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-26-24-DetectEntitiesV2) | The `DetectEntitiesV2` API operation now uses version `3.0.0`. | June 26, 2024 |
| [Updated API version for DetectEntities](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-26-24-DetectEntities) | The `DetectEntities` API operation now uses version `3.0.0`. | June 26, 2024 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-02-07-24) | The API operation `InferICD10CM` now uses version `2.7.0.20231001`. | February 7, 2024 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-09-27-23) | The API operation `InferICD10CM` now uses version `2.6.0.20220401`. | September 27, 2023 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-12-23) | The API operation `InferSNOMEDCT` now uses `3.3.0.20220301`. | June 12, 2023 |
| [New trait and attribute added for DetectEntitiesV2](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-12-23) | The API operation `DetectEntitiesV2` now uses version `3.3.0`. This update adds new traits and attributes. | June 12, 2023 |
| [New trait and attribute added for DetectEntities](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-12-23) | The API operation `DetectEntities` now uses version `3.3.0`. This update adds new traits and attributes. | June 12, 2023 |
| [New trait added to InferRxNorm](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-12-23) | The API operation `InferRxNorm` now uses version `3.3.0.20221107`. This update adds the `PAST_HISTORY` trait to medications detected. | June 12, 2023 |
| [New attribute added to InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-06-12-23) | The API operation `InferICD10CM` now uses version `2.5.0.20220401`. This update adds the `QUALITY` attribute to the medical condition category. | June 12, 2023 |
| [Updated API version for InferRxNorm](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-04-28-23) | The API operation `InferRxNorm` now uses version `2.1.0.20221003`. This update improves the performance of the InferRxNorm model. | April 28, 2023 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-04-21-23) | The API operation `InferSNOMEDCT` now uses `2.5.0.20220301`. This update improves the model's performance. | April 21, 2023 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-17-23) | The API operation `InferICD10CM` now uses version `2.4.0.20220401`. This update improves the detection of the `DX_NAME` entity and `DIRECTION` attributes. | March 17, 2023 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-15-23) | The API operation `InferSNOMEDCT` now uses version `2.4.0.20220301`. This update improves the detection of cardiology concepts in the `MEDICAL_CONDITION` and `TEST_TREATMENT_PROCEDURE` categories. | March 15, 2023 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-15-23) | The API operation `InferICD10CM` now uses version `2.3.0.20220401`. This update improves the detection of cardiology concepts in the `MEDICAL_CONDITION` category. | March 15, 2023 |
| [Updated API version for DetectEntitiesV2](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-15-23) | The API operation `DetectEntitiesV2` now uses version `2.3.0`. This update improves the detection of cardiology concepts in the `MEDICAL_CONDITION` and `TEST_TREATMENT_PROCEDURE` categories. . | March 15, 2023 |
| [Updated API version for DetectEntities](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-03-15-23) | The API operation `DetectEntities` now uses version `0.6.0`. This update improves the detection of cardiology concepts in the `MEDICAL_CONDITION` and `TEST_TREATMENT_PROCEDURE` categories. | March 15, 2023 |
| [Update API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-02-08-23) | The API operation `InferSNOMEDCT` now uses version `2.3.0.20220301`. This update improves the detection of negations when using the InferSNOMEDCT API operation. | February 8, 2023 |
| [Update API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-02-08-23) | The API operation `InferICD10CM` now uses version `2.2.0.20220401`. This update improves the detection of negations when using the InferICD10CM API operation. | February 8, 2023 |
| [Update API version for DetectEntitiesV2](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-02-08-23) | The API operation `DetectEntitiesV2` now uses version `2.2.0`. This update improves the detection of negations when using the DetectEntitiesV2 API operation. | February 8, 2023 |
| [Update API version for DetectEntities](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-02-08-23) | The API operation `DetectEntities` now uses version `0.5.0`. This update improves the detection of negations when using the DetectEntities API operation. | February 8, 2023 |
| [Update API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#update-12-09-2022) | The API operation `InferSNOMEDCT` now uses version `2.2.0.20220301`. This update fixes a bug that prevented the total set of attributes identified from being returned in the API output. | December 9, 2022 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#11-16-2022-infersnomedct) | The API operation `InferSNOMEDCT` now uses version `2.1.0.20220301`. This update includes accuracy improvements, and new traits are detected. | November 16, 2022 |
| [Updated API version for InferRxNorm](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#11-16-2022-InferRxNorm) | The API operation `InferRxNorm` now uses version 2.1.0.20221003. This update fixes a bug that prevented the total set of attributes identified from being returned. | November 16, 2022 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#11-16-2022-InferICD10CM) | The API operation `InferICD10CM` now uses version `2.1.0.20220401`. This update includes accuracy improvements, and new traits are detected. | November 16, 2022 |
| [Updated API version for DetectEntitiesV2](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#11-16-2022-detectentities-v2) | The API operation `DetectEntitiesV2` now uses version `2.1.0`. This update includes accuracy improvements. It also adds new entities, attributes, relationships, traits, and a new category. | November 16, 2022 |
| [Updated API version for DetectEntities](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-releases.html#11-16-2022-detectentities) | The API operation `DetectEntities` now uses version `0.4.0`. This update includes accuracy improvements, and new traits are detected. | November 16, 2022 |
| [Updated limits for `StartSNOMEDCTInferenceJob` and `InferSNOMEDCT`](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-quotas.html) | The maximum individual file sizes `StartSNOMEDCTInferenceJob` and `InferSNOMEDCT` API operations are now 5 KB. | September 22, 2022 |
| [Text processing update](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-textanalysis.html) | Amazon Comprehend Medical now provides improved support for correctly parsing non-relevant white space and carriage returns in all text analysis API operations. | September 12, 2022 |
| [Text processing update](https://docs.aws.amazon.com/comprehend-medical/latest/dev/comprehendmedical-ontologies.html) | Amazon Comprehend Medical now provides improved support for correctly parsing non-relevant white space and carriage returns in all ontology API operations. | September 12, 2022 |
| [Updated API version for InferSNOMEDCT](https://docs.aws.amazon.com/comprehend-medical/latest/dev/ontology-linking-snomed.html) | The Amazon Comprehend Medical API operation `InferSNOWMEDCT` now uses the version 1.1.0.20220301. | July 8, 2022 |
| [Updated API version for InferICD10CM](https://docs.aws.amazon.com/comprehend-medical/latest/dev/ontology-icd10.html) | The Amazon Comprehend Medical API operation `InferICD10CM` now uses the version 1.1.0.20220401. | July 8, 2022 |
| [Updated API version for InferRxNorm operation in Amazon Comprehend Medical](https://docs.aws.amazon.com/comprehend-medical/latest/dev/ontology-RxNorm.html) | Amazon Comprehend Medical now uses the 2022-03-07 RxNorm and RxTerms Release for each RxCUI. | June 29, 2022 |
| [Updated models for Amazon Comprehend Medical](https://docs.aws.amazon.com/comprehend-medical/latest/dev/textanalysis-entitiesv2.html) | Amazon Comprehend Medical now provides improved support for `NEGATION` *trait* detection using Detect Entities V2. | April 25, 2022 |
| [New feature for Amazon Comprehend Medical](https://docs.aws.amazon.com/comprehend/latest/dg/vpc-interface-endpoints-med.html) | You can now use Amazon Comprehend Medical to establish a private connection with your virtual private cloud (VPC) by creating an interface VPC endpoint. For more information, see [VPC endpoints(PrivateLink)](https://docs.aws.amazon.com/comprehend/latest/dg/vpc-interface-endpoints-med.html). | June 13, 2021 |
| [New feature for Amazon Comprehend Medical](https://docs.aws.amazon.com/comprehend/latest/dg/ontology-batch-api-med.html) | Amazon Comprehend Medical now provides batch operations for ontology linking. This enables the service to detect entities in medical text stored in an S3 bucket and link those entities to standardized ontologies. For more information, see [Ontology Linking Batch Analysis](https://docs.aws.amazon.com/comprehend/latest/dg/ontology-batch-api.html). | May 4, 2020 |
| [New feature for Amazon Comprehend Medical](https://docs.aws.amazon.com/comprehend/latest/dg/extracted-med-info-V2.html) | You can now use Amazon Comprehend Medical to extract and relate the date or time expression to any of the entities currently detected by Amazon Comprehend Medical. For more information, see [Detect Entities Version 2](https://docs.aws.amazon.com/comprehend/latest/dg/extracted-med-info-V2.html). | March 2, 2020 |
| [New features](https://docs.aws.amazon.com/comprehend/latest/dg/ontology-linking-apis-med.html) | Amazon Comprehend Medical now detects both medications and medical conditions and links the entities to established national ontologies RxNorm and ICD-10-CMs. For more information, see [Ontology Linking APIs](https://docs.aws.amazon.com/comprehend/latest/dg/ontology-linking-apis-med.html). | December 16, 2019 |
| [New feature](https://docs.aws.amazon.com/comprehend/latest/dg/extracted-med-info-V2.html) | Amazon Comprehend Medical now provides batch operations so that you can process medical text stored in an S3 bucket. It also provides a new model that you can use for examining your medical text. For more information, see [Detect Entities Version 2](https://docs.aws.amazon.com/comprehend/latest/dg/extracted-med-info-V2.html). | September 24, 2019 |
| [Major new feature](https://docs.aws.amazon.com/comprehend/latest/dg/comprehend-medical.html) | Amazon Comprehend Medical is a new service that detects useful information in unstructured clinical text: physicians' notes, discharge summaries, test results, case notes, and so on. Amazon Comprehend Medical uses natural language processing (NLP) models to leverage the latest advances in machine learning to sort through this enormous quantity of data and retrieve valuable information that is otherwise difficult to retrieve and use without significant manual effort. For more information, see [Amazon Comprehend Medical](https://docs.aws.amazon.com/comprehend/latest/dg/comprehend-medical.html). | November 27, 2018 |
## Amazon Comprehend Medical change log
The following sections detail updates to the Amazon Comprehend Medical service.
### Updated API version for DetectEntitiesV2
**Release date:** 2026-03-19
**Type:** Automatic
The DetectEntitiesV2 API operation now uses model version `3.3.0`.
### Updated API version for DetectEntities
**Release date:** 2026-03-19
**Type:** Automatic
The DetectEntities API operation now uses model version `3.3.0`.
### Updated API version for InferICD10CM
**Release date:** 2026-03-19
**Type:** Automatic
The InferICD10CM API operation now uses model version `3.3.0.20251001`.
### Updated API version for InferRxNorm
**Release date:** 2026-03-19
**Type:** Automatic
The InferRxNorm API operation now uses model version `3.3.0.20221107`.
### Updated API version for InferSNOMEDCT
**Release date:** 2026-03-19
**Type:** Automatic
The InferSNOMEDCT API operation now uses model version `3.3.0.20220301`.
### Updated API version for InferICD10CM
**Release date:** 2025-11-03
**Type:** Automatic
The InferICD10CM API operation now uses model version `3.2.0.20251001`. This update introduces support for the newly released 2026 ICD10CM code set that went into effect on October 1, 2025.
### Updated API version for InferRxNorm
**Release date:** 2025-11-03
**Type:** Automatic
The `InferRxNorm` API operation now uses model version `3.2.0.20221107`.
### Updated API version for InferSNOMEDCT
**Release date:** 2025-11-03
**Type:** Automatic
The `InferSNOMEDCT` API operation now uses model version `3.2.0.20220301`.
### Updated API version for InferICD10CM
**Release date:** 2025-08-05
**Type:** Automatic
The InferICD10CM API operation now uses model version `3.1.0.20250401`. This update introduces support for the newly released 2025 ICD10CM code set that went into effect on April 1, 2025.
### Updated API version for InferRxNorm
**Release date:** 2025-08-05
**Type:** Automatic
The `InferRxNorm` API operation now uses model version `3.1.0.20221107`.
### Updated API version for InferSNOMEDCT
**Release date:** 2025-08-05
**Type:** Automatic
The `InferSNOMEDCT` API operation now uses model version `3.1.0.20220301`.
### Updated API version for DetectEntities
**Release date:** 2024-06-26
**Type:** Automatic
The `DetectEntities` API operation now uses model version `3.0.0`.
### Updated API version for DetectEntitiesV2
**Release date:** 2024-06-26
**Type:** Automatic
The `DetectEntitiesV2` API operation now uses model version `3.0.0`.
### Updated API version for InferRxNorm
**Release date:** 2024-06-26
**Type:** Automatic
The `InferRxNorm` API operation now uses model version `3.0.0.20221107`.
### Updated API version for InferSNOMEDCT
**Release date:** 2024-06-26
**Type:** Automatic
The `InferSNOMEDCT` API operation now uses model version `3.0.0.20220301`.
### Updated API version for InferICD10CM
**Release date:** 2024-06-26
**Type:** Automatic
The `InferICD10CM` API operation now uses model version `3.0.0.20231001`.
### Changes to the Amazon Comprehend Medical API operations
**Release date:** 2024-02-07
**Type:** Automatic
In this update the InferICD10CM API operation was updated. The InferICD10CM API operation now uses model version `2.7.0.20231001`. This update introduces support for the newly released 2024 ICD10CM code set that went into effect on October 1, 2023. This update also improves overall model accuracy.
### Changes to the Amazon Comprehend Medical API operations
**Release date:** 2023-09-27
**Type:** Automatic
In this update, the InferICD10CM API operation was updated to use model version 2.6.0.20220401. This update improves low confidence scores and model accuracy.
### Changes to the Amazon Comprehend Medical API operation
**Release date:** 2023-06-12
**Type:** Automatic
In this update the following API operations now use a new model version.
+ DetectEntities now uses model version 3.3.0.
+ DetectEntitiesV2 now uses model version 3.3.0.
+ InferRxNorm now uses model version 3.3.0.20221107.
+ InferICD10CM now uses model version 2.5.0.20220401.
+ InferSNOMEDCT now uses model version 3.3.0.20220301.
This update adds the trait `PAST_HISTORY` to the medication category in the `DetectEntities`, `InferRxNorm` and `DetectEntitiesV2` API operations.
This update also adds the attribute `QUALITY` to the medical condition category in the `DetectEntitiesV2`, `DetectEntities`, and `InferICD10CM`.
To learn more about Amazon Comprehend Medical's text analysis API operations, see [Text analysis API operations](comprehendmedical-textanalysis.md).
To learn more about Amazon Comprehend Medical's ontology linking API operations, see [Ontology linking](comprehendmedical-ontologies.md).
### Changes to the Amazon Comprehend Medical API operations
**Release date:** 2023-04-28
**Type:** Automatic
In this update the InferRxNorm API operations were updated. The InferRxNorm API operation now uses model version 2.1.0.20221003. This update improves the model's performance.
### Changes to the Amazon Comprehend Medical API operations
**Release date:** 2023-04-21
**Type:** Automatic
In this update the InferSNOMEDCT API operation was updated. The InferSNOMEDCT API operation now uses model version 2.5.0.20220301. This update improves the model's performance.
### Changes to the Amazon Comprehend Medical API operations
**Release date:** 2023-03-17
**Type:** Automatic
In this update the InferICD10CM API operation was updated. This update improves the detection of the `DX_NAME` entity and `DIRECTION` attributes. It also makes a minor system processing adjustment that impacts the detection of traits and attributes and the frequency/confidence scores in the API output.
### Changes to the Amazon Comprehend Medical API operations
**Release date:** 2023-03-15
**Type:** Automatic
In this update, the following Amazon Comprehend Medical API operations were updated: `InferSNOMEDCT`, `InferICD10CM`, `DetectEntities`, and `DetectEntitiesV2`. These updates are automatic, and improve the detection of medical conditions, tests, treatments, and procedures, along with related attributes and traits, within the cardiology specialty.
### Changes to Amazon Comprehend Medical API operations
**Release date:** 2023-02-08
**Type:** Automatic
In this update, the following Amazon Comprehend Medical API operations were updated: `InferSNOMEDCT`, `InferICD10CM`, `DetectEntities`, and `DetectEntitiesV2`. These updates are automatic, and improve the detection of negations in medical conditions when scanning clinical text.
### Changes to the Amazon Comprehend Medical InferSNOMEDCT API operations
**Release date:** 2022-12-09
**Type:** Automatic
The Amazon Comprehend Medical API operation, `InferSNOMEDCT` was updated to use version `2.2.0.20220301`. This update fixes a bug that prevented the total set of attributes identified from being returned.
Batch analysis carried out using the `StartSNOMEDCTInferenceJob` API operation uses the same API version, `2.2.0.20220301`. To learn more about using these API operations, see [SNOMED CT linking](ontology-linking-snomed.md).
### Changes to Amazon Comprehend Medical API operations
**Release date:** 2022-11-16
**Type:** Automatic
In this update, the following Amazon Comprehend Medical API operations were updated: `InferSNOMEDCT`,`InferICD10CM`, `DetectEntities`, `DetectEntitiesV2`
**`DetectEntities`**
The Amazon Comprehend Medical API operation `DetectEntities` now uses API version **0.4.0**. This update includes accuracy improvements, and new traits are detected.
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `PROCEDURE_NAME`, the following traits are added.
+ `NEGATION`
+ `PAST_HISTORY`
+ `HYPOTHETICAL`
+ `FUTURE`
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `TEST_NAME`, the following traits are added.
+ `PAST_HISTORY`
+ `HYPOTHETICAL`
+ `FUTURE`
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `TREATMENT_NAME`, the following traits are added.
+ NEGATION
+ `PAST_HISTORY`
+ `HYPOTHETICAL`
+ `FUTURE`
For **Category:** `MEDICAl_CONDITION`, **Type**: `DX_NAME`, the following traits are added.
+ `HYPOTHETICAL`
+ `LOW_CONFIDENCE`
+ `PERTAINS_TO_FAMILY`
**`DetectEntitiesV2`**
The Amazon Comprehend Medical API operation `DetectEntitiesV2` now uses API version **2.1.0**. The update includes a new category `BEHAVIORAL_ENVIRONMENTAL_SOCIAL` along with updates to existing categories and traits.
For the new **Category:** `BEHAVIORAL_ENVIRONMENTAL_SOCIAL`, the following types have been added: `GENDER`, `RACE_ETHNICITY`, `ALLERGIES`,`TOBACCO_USE`, `ALCOHOL_CONSUMPTION`, `REC_DRUG_USE`, `UnmappedAttributes`.
For **Type**: `GENDER`
+ No attributes or traits are available.
For **Type**: `RACE_ETHNICITY`
+ No attributes or traits are available.
For **Type**: `ALLERGIES`, the following traits are added.
+ `NEGATION`
+ `PAST_HISTORY`
For **Type**: `TOBACCO_USE`, the following attributes and traits are added.
+ Attributes
+ `AMOUNT`
+ `DURATION`
+ `FREQUENCY`
+ Trait
+ `NEGATION`
+ `PAST_HISTORY`
For **Type**: `ALCOHOL_CONSUMPTION`, the following attributes and traits are added.
+ Attributes
+ `AMOUNT`
+ `DURATION`
+ `FREQUENCY`
+ Trait
+ `NEGATION`
+ `PAST_HISTORY`
For **Type**: `REC_DRUG_USE`, the following attributes and traits are added.
+ Attributes
+ `AMOUNT`
+ `DURATION`
+ `FREQUENCY`
+ Trait
+ `NEGATION`
+ `PAST_HISTORY`
For **Type**: `UnmappedAttributes`, the following attribute is added.
+ `AMOUNT`
For **Category:** `MEDICAl_CONDITION`, **Type**: `DX_NAME`, the following traits are added.
+ `PERTAINS_TO_FAMILY`
+ `HYPOTHETICAL`
+ `LOW_CONFIDENCE`
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `PROCEDURE_NAME`, the following traits are added.
+ `NEGATION`
+ `PAST_HISTORY`
+ `HYPOTHETICAL`
+ `FUTURE`
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `TEST_NAME`, the following traits are added.
+ `PAST_HISTORY`
+ `HYPOTHETICAL`
+ `FUTURE`
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `TREATMENT_NAME`, the following traits are added.
+ `NEGATION`
+ `PAST_HISTORY`
+ `HYPOTHETICAL`
+ `FUTURE`
Batch analysis carried out using the `StartEntitiesDetectionV2Job` API operation uses the same API version, **2.1.0**. To learn more about using these API operations, see [Detect entities (Version 2)](textanalysis-entitiesv2.md).
**`InferSNOMEDCT`**
The Amazon Comprehend Medical API operation `InferSNOMEDCT` now uses API version **2.1.0.20220301**. This version update adds new traits to the following categories and types.
For **Category:** `MEDICAL_CONDITION`, **Type**: `DX_NAME`, the following traits are added.
+ `PERTAINS_TO_FAMILY`
+ `HYPOTHETICAL`
+ `LOW_CONFIDENCE`
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `TEST_NAME`, the following traits are added.
+ `PAST_HISTORY`
+ `FUTURE`
+ `HYPOTHETICAL`
For **Category:** `TEST_TREATMENT_PROCEDURE`, **Type**: `TREATMENT_NAME`, the following traits are added.
+ `NEGATION`
+ `PAST_HISTORY`
+ `FUTURE`
+ `HYPOTHETICAL`
*Bug fixes*
+ This update fixes a bug that prevented the total set of attributes identified from being returned.
Batch analysis carried out using the `StartSNOMEDCTInferenceJob` API operation uses the same version. To learn more about using these API operations, see [SNOMED CT linking](ontology-linking-snomed.md).
**`InferICD10CM`**
The Amazon Comprehend Medical API operation `InferICD10CM` now uses API version 2.1.0.20220401. This version update adds new traits to the following categories and types.
For **Category:** `MEDICAL_CONDITION`, **Type**: `DX_NAME`, the following traits are added.
+ `PERTAINS_TO_FAMILY`
+ `HYPOTHETICAL`
+ `LOW_CONFIDENCE`
*Bug fixes*
+ This update fixes a bug that prevented the total set of attributes identified from being returned.
Batch analysis carried out using the `StartRxNormInferenceJob` API operation uses the same version. To learn more about using the `InferRxNorm` and `StartRxNormInferenceJob` API operations, see [RxNorm linking](ontology-RxNorm.md).
**InferRxNorm**
The Amazon Comprehend Medical API operation InferRxNorm now uses API version `1.3.1.20221003`.
*Bug fixes*
+ This update fixes a bug that prevented the total set of attributes identified from being returned.