Onychodystrophy is commonly associated with alopecia areata (AA), with a prevalence ranging from 7%-66%. Either some or all of the nails may be affected. If all nails are affected, it is commonly referred to as twenty-nail dystrophy. The most common nail abnormalities are pitting and trachyonychia, but longitudinal ridging, onycholysis, red spotted lunulae, and onychomadesis may also be seen.
Patients with more severe AA are more likely to have nail changes. Nail changes may precede, follow, or coincide with the onset of hair loss.
In children, pitting, trachyonychia, and onychomadesis are the most common nail changes. Spotted lunulae are only seen in conjunction with pitting in children.
Alopecia areata - Nail and Distal Digit
See also in: Overview,External and Internal Eye,Hair and ScalpAlerts and Notices
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Synopsis
Codes
ICD10CM:
L63.9 – Alopecia areata, unspecified
SNOMEDCT:
68225006 – Alopecia areata
L63.9 – Alopecia areata, unspecified
SNOMEDCT:
68225006 – Alopecia areata
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Last Reviewed:02/21/2024
Last Updated:05/31/2017
Last Updated:05/31/2017
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Alopecia areata - Nail and Distal Digit
See also in: Overview,External and Internal Eye,Hair and Scalp