Autosomal dominant hereditary disorder	Developmental hereditary disorder	Ectodermal dysplasia with hair-tooth-nail defects	Genetic disorder of nail	Hereditary disorder of the integument	Hereditary disorder of tooth	Partial congenital absence of teeth
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Ectodermal dysplasia trichoodontoonychial type (disorder)
	Ectodermal dysplasia trichoodontoonychial type
	A form of ectodermal dysplasia with hair, teeth and nail involvement. The disease has predominant characteristics of hypodontia, hypotrichosis, delayed hair growth and brittle nails. Additionally focal dermal hypoplasia, irregular hyperpigmentation, hypoplastic or absent nipples, amastia, hearing impairment, congenital hip dislocation and asthma have been associated. There have been no further descriptions in the literature since 1996.
	ectodermale dysplasie van tricho-odonto-onychiaal type

Id	734018003
Status	Primitive

Associated morphology	Dysplasia
Finding site	Ectoderm structure
Occurrence	Congenital
Pathological process	Pathological developmental process

Associated morphology	Morphologically abnormal structure
Finding site	Hair structure
Occurrence	Congenital
Pathological process	Pathological developmental process

Associated morphology	Congenital abnormal number
Finding site	Tooth structure
Occurrence	Congenital
Pathological process	Pathological developmental process

Associated morphology	Absence
Finding site	Tooth structure
Occurrence	Congenital

Associated morphology	Morphologically abnormal structure
Finding site	Nail unit structure
Occurrence	Congenital
Pathological process	Pathological developmental process

DHD Diagnosis thesaurus reference set

ICD-10 complex map reference set

Target	Q82.4
Rule	TRUE
Advice	ALWAYS Q82.4 \| POSSIBLE REQUIREMENT FOR ADDITIONAL CODE TO FULLY DESCRIBE DISEASE OR CONDITION
Correlation	SNOMED CT source code to target map code correlation not specified