Where used:
| Data Set | National Neonatal Data Set - Two Year Neonatal Outcomes Assessment | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |
| Data Element | HEAD CIRCUMFERENCE IN CENTIMETRES (AT TWO YEAR NEONATAL OUTCOMES ASSESSMENT) | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |
| Data Element | OBSERVATION DATE (HEAD CIRCUMFERENCE) | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |
| Data Element | OBSERVATION YEAR AND MONTH (HEAD CIRCUMFERENCE) | references in description OBSERVATION DATE (HEAD CIRCUMFERENCE) |
