Where used:
| Data Set | National Renal Data Set - Paediatrics | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |
| Data Element | OBSERVATION DATE (HEAD CIRCUMFERENCE) | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |
| Data Set | National Renal Data Set - Paediatrics | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |
| Data Element | OBSERVATION DATE (HEAD CIRCUMFERENCE) | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |