| Chignon | |
|---|---|
| A baby's scalp showing the effects of a vacuum extraction. | |
| Classification and external resources | |
| Specialty | pediatrics |
| ICD-10 | P12.1 |
| ICD-9-CM | 767.19 |
A chignon is a temporary swelling left on an infant's head after a ventouse suction cap has been used to deliver him or her. It is not a sign of serious injury and may take as little as two hours or as long as two weeks to disappear.