Format/Length:	an1
National Codes:	See TISSUE PLANES INVOLVED
Default Codes:	9 - Not Known (Not Recorded)

Notes:
TISSUE PLANES INVOLVED is the same as attribute TISSUE PLANES INVOLVED.

Note: This item does not adhere to NHS England Data Design Principles but cannot be changed for this version of the data set as it is included in the Royal College of Pathologists data set only. It should not be used in any other data set until the Data Design Principles are met.