| parent | Perimeter | LP70910-2 |
| child | Fetal Head Circumference derived from occipital-frontal diameter and outer-inner biparietal diameter (US) | 11983-4 |
| child | Fetal Head Circumference derived from occipital-frontal diameter and outer-outer transaxial diameter (US) | 11982-6 |
| child | Fetal Head Circumference estimated from gestational age by method of Australian Society of Ultrasound Medicine 2000 (US) | 33172-8 |
| child | Fetal Head Circumference estimated from gestational age by method of Chitty 1994 (US) | 33174-4 |
| child | Fetal Head Circumference estimated from gestational age by method of Hadlock 1984 (US) | 33173-6 |
| child | Fetal Head Circumference estimated from gestational age by method of Jeanty 1982 (US) | 33175-1 |
| child | Fetal Head Circumference estimated from gestational age by method of Merz 1988 (US) | 33176-9 |
| child | Fetal Head Circumference US | 11984-2 |
| child | Fetal Head Circumference measured by ellipse overlay (US) | 11985-9 |
| child | Fetal Head Circumference US.traced | 11986-7 |
| PartDisplayName | en-US | Perimeter | Fetus | Head | OB ultrasound |
LOINC Version: 2.77
FHIR