Format/length:	an7
HES item:
National Codes:
Default Codes:

Notes:
See DIAGNOSTIC CODING for details on coding and Clinical Coding for their usage.

Secondary is a classification of PATIENT DIAGNOSIS CODING SIGNIFICANCE.

For CDS purposes there may be up to 13 secondary diagnoses recorded. 

This data element is also known by these names:

Context	Alias
plural	SECONDARY DIAGNOSIS (READ)