| 11628-5 | Fetal Head Binocular distance estimated from Biparietal diameter on US |
| 11629-3 | Fetal Head Binocular distance US |
| 11820-8 | Fetal Head Diameter.biparietal US |
| 11821-6 | Fetal Head Mean biparietal diameter Estimated from gestational age |
| 11822-4 | Fetal Head Mean biparietal diameter estimated from Cerebellar diameter (US) |
| 11823-2 | Fetal Head Diameter.biparietal/Diameter.occipital derived (us) |
| 11824-0 | Fetal Head Diameter.BPD.area-corrected derived (us) |
| 11851-3 | Fetal Head Diameter.occipito-frontal US |
| 11852-1 | Fetal Head Diameter.outer to outer US |
| 11956-0 | Fetal Head Lateral ventricular body width/Hemispheric width derived (us) |
| 11982-6 | Fetal Head Circumference derived from occipital-frontal diameter and outer-outer transaxial diameter (US) |
| 11983-4 | Fetal Head Circumference derived from occipital-frontal diameter and outer-inner biparietal diameter (US) |
| 11984-2 | Fetal Head Circumference US |
| 11985-9 | Fetal Head Circumference measured (ellipse overlay (us)) |
| 11986-7 | Fetal Head Circumference US.traced |
| 12069-1 | Fetal Head Study observation US |
| 12070-9 | Fetal Head Narrative Study observation US |
| 12170-7 | Fetal Head Hemisphere width US |
| 33151-2 | Fetal Head Diameter.biparietal estimated from gestational age (method of australian society of ultrasound medicine 2000 (us)) |
| 33152-0 | Fetal Head Diameter.biparietal outer to outer estimated from gestational age (method of chitty 1994 (us)) |
| 33153-8 | Fetal Head Diameter.biparietal estimated from gestational age (method of jeanty 1982 (us)) |
| 33154-6 | Fetal Head Diameter.biparietal estimated from gestational age (method of merz 1988 (us)) |
| 33155-3 | Fetal Head Diameter.biparietal estimated from gestational age (method of rempen 1991 (us)) |
| 33156-1 | Fetal Head Diameter.biparietal estimated from gestational age (method of shinozuka 1996 (us)) |
| 33157-9 | Fetal Head Diameter.biparietal/Diameter.occipital estimated from gestational age (method of chitty 1994 (us)) |
| 33158-7 | Fetal Head Diameter.biparietal/Diameter.occipital estimated from gestational age (method of hadlock 1981 (us)) |
| 33172-8 | Fetal Head Circumference estimated from gestational age (method of australian society of ultrasound medicine 2000 (us)) |
| 33173-6 | Fetal Head Circumference estimated from gestational age (method of hadlock 1984 (us)) |
| 33174-4 | Fetal Head Circumference estimated from gestational age (method of chitty 1994 (us)) |
| 33175-1 | Fetal Head Circumference estimated from gestational age (method of jeanty 1982 (us)) |
| 33176-9 | Fetal Head Circumference estimated from gestational age (method of merz 1988 (us)) |
| 33178-5 | Occipital frontal diameter estimated from gestational age (method of australian society of ultrasound medicine 2000 (us)) |
| 33179-3 | Occipital frontal diameter estimated from gestational age (method of chitty 1994 (us)) |
| 33198-3 | Fetal Head Diameter.biparietal estimated from gestational age (method of hadlock 1984 (us)) |
| 33556-2 | Fetal Head Diameter.biparietal outer to inner estimated from gestational age (method of chitty 1994 (us)) |
| 95940-3 | Fetal Head Diameter.biparietal percentile per estimated gestational age |