---
title: "[MI/URSA-CORE] AHFS Therapeutic Class Reference"
slug: "mi-ursa-core-ahfs-therapeutic-class-reference"
updated: 2026-11-04T20:15:31Z
published: 2026-11-04T20:15:31Z
canonical: "docs.ursahealth.com/mi-ursa-core-ahfs-therapeutic-class-reference"
---

> ## Documentation Index
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# [MI/URSA-CORE] AHFS Therapeutic Class Reference

## Object Description

One record per AHFS therapeutic class code.

The source for this object is Merative™ Micromedex® RED BOOK (formerly IBM Micromedex RED BOOK).

Ursa Studio Update Cadence: Quarterly

## Metadata

- **Table Name**: ursa.mi_ursa_core_112
- **Layer**: METADATA_AND_INTEGRATION
- **Object Type**: Ursa Reference
- **Temporal Class**: Entity
- **Case ID**: AHFS Therapeutic Class Code
- **Primary Key**: AHFS Therapeutic Class Code

## Published Fields

- **[No Field Group]**
  - AHFS Therapeutic Class Code
  - AHFS Therapeutic Class Tier 1 Description -- The natural language description of the first-tier category within the AHFS Therapeutic Classification System that the medication is assigned to. (See also [URSA-CORE] AHFS Pharmacologic-Therapeutic Classification System)
  - AHFS Therapeutic Class Tier 2 Description -- The natural language description of the second-tier category within the AHFS Therapeutic Classification System that the medication is assigned to. (See also [URSA-CORE] AHFS Pharmacologic-Therapeutic Classification System)
  - AHFS Therapeutic Class Tier 3 Description -- The natural language description of the third-tier category within the AHFS Therapeutic Classification System that the medication is assigned to. (See also [URSA-CORE] AHFS Pharmacologic-Therapeutic Classification System)