---
title: "[MI/URSA-CORE] APR-DRG Code Reference"
slug: "mi-ursa-core-apr-drg-code-reference"
updated: 2026-11-04T20:15:31Z
published: 2026-11-04T20:15:31Z
canonical: "docs.ursahealth.com/mi-ursa-core-apr-drg-code-reference"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ursahealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# [MI/URSA-CORE] APR-DRG Code Reference

## Object Description

One row per APR-DRG code

The sources for this object are 3M™ All Patient Refined Diagnosis Related Groups (3M APR DRG) and the Ursa Standard Value Sets for additional descriptions.

Ursa Studio Update Cadence: Annually

## Metadata

- **Table Name**: ursa.mi_ursa_core_126
- **Layer**: METADATA_AND_INTEGRATION
- **Object Type**: Ursa Reference
- **Temporal Class**: Entity
- **Case ID**: APR-DRG Code
- **Primary Key**: APR-DRG Code

## Published Fields

- **Billing and Claims Fields**
  - APR-DRG Code -- The standard 3-digit All Patient Refined Diagnosis Related Group code; APR-DRG codes should include leading zeros, and do not include the Severity of Illness or Risk of Mortality modifiers.
  - APR-DRG Description -- The natural language description of a standard 3-digit All Patient Refined Diagnosis Related Group code. (See also [URSA-CORE] APR-DRG Code)
  - Is APR-DRG Medical Surgical Type Medical -- Indicates the APR-DRG has been classified as a medical (non-surgical) code.
  - Is APR-DRG Medical Surgical Type Surgical -- Indicates the APR-DRG has been classified as a surgical code.
  - APR-DRG MDC Code -- The two-digit numeric code representing the Major Diagnostic Category for a given DRG based on condition type and body region; 01 = Nervous system, 02 = Eye, 03 = Ear/Nose/Throat, 04 = Respiratory System, etc. (See also [URSA-CORE] MDC Description)
  - APR-DRG MDC Description -- The natural language description of the two-digit Major Diagnostic Category (MDC) Code that classifies DRGs based on condition type and body region; 01 = Nervous system, 02 = Eye, 03 = Ear/Nose/Throat, 04 = Respiratory System, etc. (See also [URSA-CORE] MDC Code)