Abnormally high-pitched voice A persistent (minutes to hours) abnormal increase in the pitch (frequency) of the voice for the context or social situation or significantly different from baseline of the individual. High pitched voice HP:0001610 HP:0001620 High-pitched voice HP:0008374 HP:0009146 SNOMEDCT_US:51406002 HP:0008378 HP:0008377 HP:0008379 UMLS:C0241703 Abnormal pitch