Skip to main content

Hospital-Acquired Complications (HACs) List - Specifications - Version 3.1 (12th edn)

The HACs are identified using a combination of ICD-10-AM codes to identify the diagnosis and the condition onset flag (METeOR identifier: 354816) to indicate that the diagnosis occurred during the episode of admitted patient care.

Some HACs also require other codes to define the complication such as procedure and external cause codes.

Accessibility - We aim to provide documents in an accessible format. If you're having problems using a document with your accessibility tools, please contact us for help.

Copyright - Unless stated otherwise, materials provided are covered by a Creative Commons Attribution-Non-Commercial-No Derivatives (BY-NC-ND) 4.0 International License.

Request permission to reproduce material produced by the Commission by completing this form.


Additional resources

Current Specification - Hospital-Acquired Complications (HACs) List - Version 3.1 (12th edition)

Download File (181.28 KB)

Past Specifications

Download File (164.91 KB)
Download File (157.35 KB)
Download File (156.35 KB)
Download File (195.21 KB)
Download File (131.65 KB)
Download Excel (131.6 KB)
Publication year
Resource type
Publication, report or update
Back to top