770802007: Nail unit structure (body structure)

SNOMED CT Concept\Body structure (body structure)\Anatomical or acquired body structure (body structure)\Anatomical structure\...

\An anatomical structure that consists of the maximal set of organ parts so connected to one another that together they constitute a self-contained unit of macroscopic anatomy, distinct both morphologically and functionally from other such units. Together with other organs, an organ constitutes an organ system or a body part. An organ is divisible into organ parts but not organs (examples: femur, biceps, liver, heart, aorta, sciatic nerve, ovary).\Organ part\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\An anatomical structure that consists of the maximal set of organ parts so connected to one another that together they constitute a self-contained unit of macroscopic anatomy, distinct both morphologically and functionally from other such units. Together with other organs, an organ constitutes an organ system or a body part. An organ is divisible into organ parts but not organs (examples: femur, biceps, liver, heart, aorta, sciatic nerve, ovary).\Skin structure\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\An anatomical structure that consists of the maximal set of organ parts so connected to one another that together they constitute a self-contained unit of macroscopic anatomy, distinct both morphologically and functionally from other such units. Together with other organs, an organ constitutes an organ system or a body part. An organ is divisible into organ parts but not organs (examples: femur, biceps, liver, heart, aorta, sciatic nerve, ovary).\Skin structure\Skin appendage structure (body structure)\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.

\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of limb (body structure)\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of subdivision of organ system (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin appendage structure (body structure)\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of skin and/or mucous membrane (body structure)\Region consisting of all body skin and directly related mucosa but excluding mucosa within the body such as the mucous membrane of the urinary bladder.\Skin structure\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of skin and/or mucous membrane (body structure)\Region consisting of all body skin and directly related mucosa but excluding mucosa within the body such as the mucous membrane of the urinary bladder.\Skin structure\Skin appendage structure (body structure)\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of skin and/or surface epithelium (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of skin and/or surface epithelium (body structure)\Skin structure\Skin appendage structure (body structure)\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of limb (body structure)\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body system structure\Structure of integumentary system (body structure)\Integumentary system part (body structure)\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin appendage structure (body structure)\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.

\Body tissue structure\Structure of soft tissue (body structure)\...

\Structure of soft tissue of limb (body structure)\Skin and/or subcutaneous tissue structure of limb (body structure)\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.

\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of limb (body structure)\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin appendage structure (body structure)\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.

\Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Limb structure\Limb part (body structure)\Structure of soft tissue of limb (body structure)\Skin and/or subcutaneous tissue structure of limb (body structure)\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Limb structure\Limb part (body structure)\Digit structure\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin and/or subcutaneous tissue structure of limb (body structure)\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin part\Structure of skin region\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body region structure\Skin and/or subcutaneous tissue structure (body structure)\Skin structure\Skin appendage structure (body structure)\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body region structure\Body part structure\Limb structure\Limb part (body structure)\Structure of soft tissue of limb (body structure)\Skin and/or subcutaneous tissue structure of limb (body structure)\Skin structure of limb\Skin of part of limb (body structure)\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.
\Body region structure\Body part structure\Limb structure\Limb part (body structure)\Digit structure\Skin of digit\Skin of part of digit\Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2019. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

3776999012 Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate. en Definition Active Entire term case sensitive (core metadata concept) SNOMED CT core

3702885018 Nail region structure en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

3702886017 Nail unit structure en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

3702887014 Nail unit structure (body structure) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Is a	Digit structure	false	Inferred relationship	Some
Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Is a	Structure of integumentary system (body structure)	false	Inferred relationship	Some
Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Laterality	Side (qualifier value)	true	Inferred relationship	Some
Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Is a	Skin of part of digit	true	Inferred relationship	Some
Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Is a	Skin appendage structure (body structure)	true	Inferred relationship	Some

Inbound Relationships	Type	Active	Source	Characteristic	Refinability	Group
Inherited deformity of nail (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Injury of nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail shedding	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail absent	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
On examination - nails brittle	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Proximal subungual onychomycosis (disorder)	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Muehrcke's lines	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	2
Splits in nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Drug-induced leukonychia (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Longitudinal overcurvature of nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychomycosis caused by Trichophyton soudanense	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Photoonycholysis	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail dystrophy due to cytotoxic therapy (disorder)	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	2
Transverse overcurvature of nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychogryposis	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychomycosis caused by Trichophyton rubrum (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Total dystrophic onychomycosis (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Eggshell nails	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Developmental abnormality of nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Anonychia (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Transverse split nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onycholysis due to fungal infection of nail (disorder)	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Hidrotic ectodermal dysplasia, Halal type is a form of ectodermal dysplasia syndrome characterized by trichodysplasia, with absent eyebrows and eyelashes, onychodysplasia, mild retrognathia, abnormal dermatoglyphics (excess of whorls on fingertips, radial loop on finger, hypothenar pattern), intellectual disability and normal teeth and sweating. Additional variable manifestations include high implanted or prominent ears, mild hearing loss, supernumerary nipple, café-au-lait spots, keratosis pilaris, and irregular menses. To date, four individuals from 2 generations of a consanguineous family of Portuguese descent have been described in the literature. Males and females were equally affected. Hidrotic ectodermal dysplasia, Halal type is inherited in an autosomal recessive manner.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	3
Finding of surface of nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Acquired koilonychia (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Endonyx onychomycosis (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nutcracker nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail surface rough	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Longitudinal split nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Grey nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail damage caused by weedkiller (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychoatrophy	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Median nail dystrophy of Heller	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
A multiple congenital anomaly disorder characterized by anonychia congenita totalis and microcephaly, and normal intelligence along with some minor anomalies including single transverse palmar creases, fifth-finger clinodactyly and widely spaced teeth.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Grooving of nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Ectodermal dysplasia with nail defect	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Infection of nail bed of finger (disorder)	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
On examination - nails - splinter hemorrhage	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Ingrowing nail (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Twenty nail dystrophy	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Longitudinal grooving of nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Acquired nail deformity (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Triphalangeal thumbs with onychodystrophy	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	3
Nail fold finding	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Cooks syndrome is a malformation syndrome affecting the apical structures of digits and presenting with hypo/aplasia of nails and distal phalanges. More than half of digits are usually involved and the thumbs may appear digitalized.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychomycosis caused by Trichophyton violaceum	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail dystrophy co-occurrent with reactive arthritis triad (disorder)	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some
Nail damage	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Elkonyxis (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychomycosis caused by Trichophyton mentagrophytes variant interdigitale (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Excision of nail	Procedure site - Direct (attribute)	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Candidiasis of nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome is a rare, syndromic nail anomaly disorder characterized by the association of leukonychia totalis with acanthosis-nigricans-like lesions (occurring in the neck, axillae and abdomen regions) and hair dysplasia, manifesting with dry, brittle hair which presents an irregular pattern of complete or incomplete twists and an irregular surface with longitudinal furrows on electronic microscopy.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	2
Nail unit part	Is a	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some
Laugier-Hunziker syndrome (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	2
Nail damage from nail cosmetic (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Transverse melanonychia	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Piercing of nail (procedure)	Procedure site - Direct (attribute)	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Congenital leukonychia	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Idiopathic photo-onycholysis	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	2
Nails dirty	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail deformity	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Procedure on nail	Procedure site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Damaged nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Trichodermodysplasia-dental alterations syndrome is a rare, genetic ectodermal dysplasia syndrome characterized by sparse, thin, brittle scalp hair, as well as sparse eyebrows, eyelashes, axillary and pubic hair, delayed eruption of deciduous teeth and hypodontia of both dentitions. Mild palmoplantar keratosis, café-au-lait spots on back, mild dystrophy of nails, and tibial deflection of toes are also associated. There have been no further descriptions in the literature since 1986.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	2
Pyonychia	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Finding of general nail condition	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Malignant neoplasm of nail apparatus (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Pectus excavatum-macrocephaly-dysplastic nails syndrome is a rare multiple congenital anomalies syndrome characterized by relative macrocephaly, pectus excavatum, short stature, nail dysplasia, and motor developmental delay (that resolves during childhood). There have been no further descriptions in the literature since 1992.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	4
Onychomycosis due to dermatophyte	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail care procedure	Procedure site - Direct (attribute)	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Debridement of nail (procedure)	Procedure site - Direct (attribute)	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Eggshell nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail dystrophy due to nail picking (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Longitudinal brown stripes in nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Hirschsprung disease-nail hypoplasia-dysmorphism syndrome is a fatal malformative disorder that is characterised by Hirschsprung disease, hypoplastic nails, distal limb hypoplasia and minor craniofacial dysmorphic features (flat facies, upward slanting palpebral fissures, narrow philtrum, narrow, high arched palate, micrognathia, low set ears with abnormal helices). Hydronephrosis has also been reported. There have been no further descriptions in the literature since 1988.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	3
A rare ectodermal dysplasia syndrome characterized by congenital onychodystrophy (particularly of the distal nail) and severe hypotrichosis with alopecia involving the eyebrows, eyelashes and body hair. Scalp, beard, pubic and axillary hair is brittle and shows a twisting pattern on electron microscopy. There have been no further descriptions in the literature since 1991.	Finding site	False	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail operations	Procedure site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Pincer nail deformity	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail discoloration	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
No abnormality detected on examination of nail (finding)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Hang nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychomycosis due to opportunistic infection (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Lupus erythematosus-associated nail dystrophy (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Parrot-beak nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
White nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
A rare, genetic, multiple congenital anomalies syndrome defined by global developmental delay and severe intellectual disability, epilepsy, hypoplasia/aplasia of the nails of the thumb and great toe, and facial dysmorphism.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	3
Reedy nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Median nail dystrophy	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Repair of a nail (procedure)	Procedure site - Direct (attribute)	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Turtleback nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
White flecks in nails	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Pachydermoperiostosis of nail	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail and teeth abnormalities-marginal palmoplantar keratoderma-oral hyperpigmentation syndrome is a rare genetic ectodermal dysplasia syndrome characterized by short stature, nail dystrophy and/or nail loss, oral mucosa and/or tongue hyperpigmentation, dentition abnormalities (delayed teeth eruption, hypodontia, enamel hypoplasia), keratoderma on the margins of the palms and soles and focal hyperkeratosis on the dorsum of the hands and feet. Additionally, dysphagia with esophageal strictures, sensorineural deafness, bronchial asthma and severe iron-deficiency anemia have been observed.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	4
Longitudinal nail ridge	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Onychomycosis caused by Pseudeurotium ovale	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Large lunula	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Transverse nail ridge	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
A rare malformation syndrome that is characterized by short stature, hypoplastic fifth digits with tiny dysplastic nails, facial dysmorphism with coarse features including a wide mouth and broad nose, and mild intellectual disability. It has been suggested that Coffin-Siris syndrome and BOD syndrome are perhaps allelic variants.	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	3
Median canaliform nail dystrophy (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1
Nail dystrophy due to benign familial pemphigus (disorder)	Finding site	True	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	Inferred relationship	Some	1

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Reference Sets

Lateralizable body structure reference set (foundation metadata concept)

Anatomy structure and entire association reference set (foundation metadata concept)

Anatomy structure and part association reference set (foundation metadata concept)

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Id	Description	Lang	Type	Status	Case?	Module
3776999012	Nail unit is a complex structure which consists of nail plate, nail bed, nail root and skin around the nail plate.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
3702885018	Nail region structure	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
3702886017	Nail unit structure	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
3702887014	Nail unit structure (body structure)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core