PROCEDURE YEAR AND MONTH (ABDOMINAL X-RAY) is the year and month of when the Abdominal X-Ray was performed.

For the National Neonatal Data Set - Episodic and Daily Care, PROCEDURE YEAR AND MONTH (ABDOMINAL X-RAY) is submitted instead of CODED PROCEDURE TIMESTAMP (ABDOMINAL X-RAY), where the data set record is anonymised.