Chronic Disease

Query purpose: 

This definition is intended to capture visits related to acute flaccid myelitis (AFM). The definition should capture visits with an AFM-related discharge diagnosis code or free-text mention.

How it works:

The Discharge Diagnosis Parsed Free Text field and Chief Complaint History field are used to query discharge diagnosis codes and free text, respectively, with exclusions separately applied to Chief Complaint History, Triage Notes Orig, and CCDD Parsed, to develop the syndrome definition.

Query purpose:

This query is designed to identify records with diagnostic codes and chief complaints related to dialysis treatment.

Please see attached fact sheet for more information including inclusion and exclusion criteria

Query purpose:

CDC staff developed the diabetic ketoacidosis CCDD category in order to assess acute diabetes complications, where data access permissions have been granted. This query is designed to identify confirmed diabetic ketoacidosis visits using discharge diagnosis codes that are consistent with national surveillance definitions. Therefore, chief complaint terms are not included in this definition.

Please see attached fact sheet for more information including inclusion and exclusion criteria

Query purpose:

This query is designed to identify records with diagnostic codes and chief complaints related to alcohol.

Please see attached fact sheet for more information including inclusion and exclusion criteria

Query purpose:

This query is designed to identify records with diagnostic codes and chief complaints associated with Acute Flaccid Myelitis in pediatric patients.

Please see attached fact sheet for more information including inclusion and exclusion criteria

Query purpose:

This query is designed to identify records with diagnostic codes and chief complaints associated with Acute Flaccid Myelitis in pediatric patients.

Please see attached fact sheet for more information including inclusion and exclusion criteria

Query purpose:

This query is designed to identify records with diagnostic codes associated with Acute Flaccid Myelitis.

Please see attached fact sheet for more information including inclusion and exclusion criteria

Query purpose:

The purpose of this definition is to capture potential emergency department visits related to asthma.

How it works:

The Chief Complaint Discharge Diagnosis (CCDD) parsed field is used to query both the discharge diagnosis codes and chief complaint free text, and exclusions are incorporated as necessary.

Query purpose: 

To assist state, local, tribal, territorial, and federal public health practitioners in trend monitoring for long COVID (also commonly described as Post-COVID Complications (PCC) or long-haul COVID) related visits in the emergency department (ED) setting using syndromic surveillance data.

How it was developed: 

Subject matter experts from seven jurisdictions (WA; VA; Harris County, TX; Pierce-Tacoma County, WA; NE; KS; KY) created and validated the definition using ED visit data from January – December 2023.

Query purpose: 

To assist state, local, tribal, territorial, and federal public health practitioners in identifying patients likely to have long COVID (also commonly described as Post-COVID Complications (PCC) or long-haul COVID) by reviewing visits in the emergency department (ED) setting and to help with trend monitoring for long COVID related visits using syndromic surveillance data.

How it was developed: