Desk Reference
The Desk Reference menu contains data driven KnowledgeBase reference materials from Optum 360 and ZHealth Publishing. These are available in three collections: Clinical References, Coders' Desk Reference, and DRG Reference. Through our advanced indexing algorithms, we have dissected and transformed these add-ons to be more than simple ebooks, rather they are interactive coding and billing assistants.

You can access the add-ons in the following locations:

The Clinical References collection provides access to: the Optum CDI Desk Reference, AHA Coding Clinics for ICD-10 and HCPCS codes, and the Dr. Z ebooks.
The Optum CDI Desk Reference provides with the following:
- Translate CDI to billing requirements for CPT, HCPCS, and ICD-10 CM coding
- CDI Alerts and warnings
- Key Terms
- Clinician Notes & Tips
- Understand the Clinician's checklist and requirements.

The Coders' Desk Reference collection provides access to our Optum CDR bundle: CDR Procedures, CDR Diagnosis, and CDR HCPCS.
Optum Desk Reference |
Features |
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CDR Procedures |
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CDR Diagnosis |
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CDR HCPCS |
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The DRG Reference collection provides access to three Optum DRG desk references: DRG Expert, Volume 1 & 2 and DRG Desk Reference.
Optum Reference |
Features |
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DRG Expert |
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DRG Desk Reference |
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To access these references in your user interface, clients can add one or all add-ons with an additional license to a KnowledgeSource or KnowledgeSource Professional subscription. A KnowledgeSource or KnowledgeSource Professional license is required. |