Terminology owner/maintenance organisation

Name, contact details, website

3M Health Information Systems, Inc.
575 West Murray Boulevard
Salt Lake City, UT 84123, USA

Website: http://www.3mhis.com

Phone: +1 800 367 2447

Formal name of the code system

All Patient Refined Diagnosis Related Groups (APR DRGs)

Short name or abbreviation of the code system name

Technical identifier/s for the code system 

Canonical URL: http://uri.hddaccess.com/cs/aprdrg

Scope/domain statement for the code system

(Official or from HTA)

"3M APR DRGs have become the standard across the U.S. for classifying hospital inpatients in non-Medicare populations. As of January 2019, 27 state Medicaid programs use 3M APR DRGs to pay hospitals, as do approximately a dozen commercial payers and Medicaid managed care organizations. Over 2,400 hospitals have licensed 3M APR DRGs to verify payment and analyze their internal operations."

"The 3M APR DRG methodology classifies hospital inpatients according to their reason for admission, severity of illness and risk of mortality."

"Each year 3M calculates and releases a set of statistics for each 3M APR DRG based on our analysis of large national data sets. These statistics include a relative weight for each 3M APR DRG. The relative weight reflects the average hospital resource use for a patient in that 3M APR DRG relative to the average hospital resource use of all inpatients. Please note that payers and other users of the 3M APR DRG methodology are responsible for ensuring that they use relative weights that are appropriate for their particular populations. The 3M APR DRG statistics also include data for each 3M APR DRG on relative frequency, average length of stay, average charges and incidence of mortality.

3M APR DRGs can be rolled up into broader categories. The 326 base DRGs roll up into 25 major diagnostic categories (MDCs) plus a pre-MDC category. An example is MDC 04, Diseases and Disorders of the Respiratory System. As well, each 3M APR DRG is assigned to a service line that is consistent with the outpatient service lines that are defined by the 3M™ Enhanced Ambulatory Patient Groups (EAPGs)."

Link to information about the code system - including how to obtain the content

See information from 3M here

Arrangement or agreements with HL7 for use of content

Version management - timing and identification of versions3M releases a new version of the 3M APR DRGs every October 1 to reflect updates in the ICD-10 diagnosis and procedure code sets and to include enhancements to the clinical classification logic.

IP Information and Licensing Information

"The clinical logic is maintained by a team of 3M clinicians, data analysts, nosologists, programmers and economists. The logic is proprietary to 3M but is available for licensees to view in an online definitions manual."

To license APR DRG from 3M, see request form here

HL7 users of this information - which HL7 products use this link (if known)

Financial Management Work Group

Process to request content change


Other useful Information

Additional information can be found here

Information current as at (date)

20201112 - Approved for Production Use
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  1. Jessica Bota Please start the UTG process to add this to THO

    1. UTG ticket/content submitted here:   UP-146 - Getting issue details... STATUS

      Senthil Nachimuthu , we used 'APRDRG' for the short name as no spaces are permitted in this value which is also used for the id in this process.