| Format/length: | See DIAGNOSTIC CODING | 
| HES item: | |
| National Codes: | |
| Default Codes: | 
Notes:
See Read Coded Clinical Terms for their usage.
Secondary is a classification of PATIENT DIAGNOSIS CODING SIGNIFICANCE.
For Commissioning Data Set (CDS) purposes it is recommended that multiple Diagnoses are recorded and the CDS-XML Message (CDS Version 6 onwards) has been designed to carry as many Diagnoses as required.
This data element is also known by these names:
| Context | Alias | 
|---|---|
| plural | SECONDARY DIAGNOSIS (READ) | 
