HL7 Terminology (THO)
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This page is part of the HL7 Terminology (v5.5.0: Release) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

CodeSystem: Systematized Nomenclature of Dentistry (SNODENT)

Official URL: http://www.ada.org/snodent Version: 2.1.0
Active as of 2019-03-20 Computable Name: AdaSnodent
Other Identifiers: urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#urn:oid:2.16.840.1.113883.3.3150

Copyright/Legal: This HL7 specification contains and references intellectual property owned by third parties (“Third Party IP”). Implementers and testers of this specification SHALL abide by the license requirements for each terminology content artifact utilized within a functioning implementation. Terminology licenses SHALL be obtained from the Third Party IP owner for each code system and/or other specified artifact used. It is the sole responsibility of each organization deploying or testing this specification to ensure their implementations comply with licensing requirements of each Third Party IP.

Systematized Nomenclature of Dentistry (SNODENT) is owned, maintained and distributed by the American Dental Association (ADA). SNODENT is a vocabulary designed for use in the electronic environment - for electronic health and dental records. The intended purpose is to:

  • Provide standardized terms for describing dental disease
  • Capture clinical detail and patient characteristics
  • Permit analysis of patient care services and outcomes
  • To be interoperable with Electronic Health Records (EHR) and Electronic Dental Records (EDR)

SNODENT licensing information can be found at: http://www.ada.org/8466.aspx

URL for Official Source: http://www.ada.org/snodent.aspx

This Code system is referenced in the content logical definition of the following value sets:

Properties

This code system defines the following properties for its concepts

CodeURITypeDescription
internalIdhttp://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-idcodeThe internal identifier for the concept in the HL7 Access database repository.
statushttp://hl7.org/fhir/concept-properties#statuscodeDesignation of a concept's state. Normally is not populated unless the state is retired.

Concepts

This case-sensitive code system http://www.ada.org/snodent provides a fragment that includes following codes in a Is-A heirarchy:

CodeDisplayDefinitioninternalIdstatus
100203D Tooth AbsentTooth Absent24020active
103356D Lingual SurfaceThe lingual aspect of the tooth.23849active
103387D Buccal SurfaceThe buccal aspect of the tooth.23848active
104161D Impacted toothImpacted tooth24021active
108042D Bone structure of maxillaBone structure of maxilla24027active
115902D Cleft palate with cleft lipCleft palate with cleft lip24008active
116259D Supernumerary toothSupernumerary tooth24023active
116762D Tooth mobility - grade 1Tooth can be moved less than 1mm in the buccolingual or mesiodistal direction23845active
117349D Juvenile rheumatoid arthritisJuvenile rheumatoid arthritis24018active
121288D Primary DentitionPrimary Dentition24024active
121344D Anterior open biteAnterior open bite24036active
122924D Hemifacial microsomiaHemifacial microsomia24011active
127066D Ankylosis of toothAnkylosis of tooth24022active
127434D Posterior crossbitePosterior crossbite24039active
132513D Mesial SurfaceThe mesial aspect of the tooth.23850active
132578D Cleft palateCleft palate24010active
133426D Gingival RecessionGingival Recession24005active
133572D Cleidocranial dysostosisCleidocranial dysostosis24013active
136123D Tooth mobility - grade 2Tooth can be moved 1mm or more in the buccolingual or mesiodistal direction. No mobility in the occlusoapical direction (vertical mobility).23846active
137027D Anterior crossbiteAnterior crossbite24035active
138900D Defective dental restorationDefective dental restoration23998active
139017D Permanent DentitionPermanent Dentition24026active
139277D Facial surface of toothThe side of a tooth adjacent to the inside of the cheek or lips.23859active
139347D Ectopic toothEctopic tooth24019active
140234D Poor oral hygienePoor oral hygiene23995active
141881D Posterior open bitePosterior open bite24040active
143353D Temporomandibular joint disorderTemporomandibular joint disorder23996active
144511D Bone structure of mandibleBone structure of mandible24028active
146014D Distal SurfaceThe distal aspect of the tooth.23851active
146718D Treacher Collins syndromeTreacher Collins syndrome24014active
149641D Tooth mobility - grade 3Tooth can be moved 1mm or more in the buccolingual or mesiodistal direction. Mobility in the occlusoapical direction is also present (vertical mobility)23847active
149694D Cleft lipCleft lip24007active
157044D Bimaxillary protrusionBimaxillary protrusion24004active
160654D Permanent lower left first premolar toothPermanent mandibular left first premolar tooth; Universal designation 21; ISO designation 3423813active
160704D Permanent lower right second molar toothPermanent mandibular right second molar tooth; Universal designation 31; ISO designation 4723823active
160770D Permanent lower right first molar toothPermanent mandibular right first molar tooth; Universal designation 30; ISO designation 4623822active
160817D Permanent lower left canine toothPermanent mandibular left canine tooth; Universal designation 22; ISO designation 3323814active
160840D Permanent upper right canine toothPermanent maxillary right canine tooth; Universal designation 6; ISO designation 1323798active
160903D Permanent upper right central incisor toothPermanent maxillary right central incisor tooth; Universal designation 8; ISO designation 1123800active
160957D Permanent upper left canine toothPermanent maxillary left canine tooth; Universal designation 11; ISO designation 2323803active
161006D Permanent upper left central incisor toothPermanent maxillary left central incisor tooth; Universal designation 9; ISO designation 2123801active
161010D Permanent upper right first molar toothPermanent maxillary right first molar tooth; Universal designation 3; ISO designation 1623795active
161068D Permanent lower left central incisor toothPermanent mandibular left central incisor tooth; Universal designation 24; ISO designation 3123816active
161109D Permanent upper left lateral incisor toothPermanent maxillary left lateral incisor tooth; Universal designation 10; ISO designation 2223802active
161121D Permanent lower right third molar toothPermanent mandibular right third molar tooth; Universal designation 32; ISO designation 4823824active
161132D Permanent upper left first molar toothPermanent maxillary left first molar tooth; Universal designation 14; ISO designation 2623806active
161150D Permanent lower left second premolar toothPermanent mandibular left second premolar tooth; Universal designation 20; ISO designation 3523812active
161178D Permanent upper left second premolar toothPermanent maxillary left second premolar tooth; Universal designation 13; ISO designation 2523805active
161197D Permanent lower right lateral incisor toothPermanent mandibular right lateral incisor tooth; Universal designation 26; ISO designation 4223818active
161227D Permanent upper right third molar toothPermanent maxillary right third molar tooth; Universal designation 1; ISO designation 1823793active
161258D Permanent lower left third molar toothPermanent mandibular left third molar tooth; Universal designation 17; ISO designation 3823809active
161262D Permanent upper right second molar toothPermanent maxillary right second molar tooth; Universal designation 2; ISO designation 1723794active
161291D Permanent lower right central incisor toothPermanent mandibular right central incisor tooth; Universal designation 25; ISO designation 4123817active
161317D Permanent upper left second molar toothPermanent maxillary left second molar tooth; Universal designation 15; ISO designation 2723807active
161329D Permanent upper left first premolar toothPermanent maxillary left first premolar tooth; Universal designation 12; ISO designation 2423804active
161372D Permanent lower left second molar toothPermanent mandibular left second molar tooth; Universal designation 18; ISO designation 3723810active
161412D Permanent lower right second premolar toothPermanent mandibular right second premolar tooth; Universal designation 29; ISO designation 4523821active
161454D Permanent upper left third molar toothPermanent maxillary left third molar tooth; Universal designation 16; ISO designation 2823808active
161477D Permanent lower left lateral incisor toothPermanent mandibular left lateral incisor tooth; Universal designation 23; ISO designation 3223815active
161496D Permanent lower right first premolar toothPermanent mandibular right first premolar tooth; Universal designation 28; ISO designation 4423820active
161514D Permanent lower right canine toothPermanent mandibular right canine tooth; Universal designation 27; ISO designation 4323819active
161533D Permanent lower left first molar toothPermanent mandibular left first molar tooth; Universal designation 19; ISO designation 3623811active
161546D Permanent upper right second premolar toothPermanent maxillary right second premolar tooth; Universal designation 4; ISO designation 1523796active
161607D Permanent upper right first premolar toothPermanent maxillary right first premolar tooth; Universal designation 5; ISO designation 1423797active
161892D Primary lower right canine toothDeciduous mandibular right canine tooth; Universal designation R; ISO designation 8323842active
161941D Permanent upper right lateral incisor toothPermanent maxillary right lateral incisor tooth; Universal designation 7; ISO designation 1223799active
161956D Primary lower right lateral incisor toothDeciduous mandibular right lateral incisor tooth; Universal designation Q; ISO designation 8223841active
162004D Primary upper left first molar toothDeciduous maxillary left first molar tooth; Universal designation I; ISO designation 6423833active
162062D Primary lower right central incisor toothDeciduous mandibular right central incisor tooth; Universal designation P; ISO designation 8123840active
162091D Primary upper right second molar toothDeciduous maxillary right second molar tooth; Universal designation A; ISO designation 5523825active
162129D Primary lower left lateral incisor toothDeciduous mandibular left lateral incisor tooth; Universal designation N; ISO designation 7223838active
162206D Primary lower right first molar toothDeciduous mandibular right first molar tooth: Universal designation S; ISO designation 8423843active
162234D Primary upper right first molar toothDeciduous maxillary right first molar tooth; Universal designation B; ISO designation 5423826active
162268D Primary upper right canine toothDeciduous maxillary right canine tooth; Universal designation C; ISO designation 5323827active
162309D Primary upper left canine toothDeciduous maxillary left canine tooth; Universal designation H; ISO designation 6323832active
162321D Primary lower left second molar toothDeciduous mandibular left second molar tooth; Universal designation K; ISO designation 7523835active
162345D Primary lower left central incisor toothDeciduous mandibular left central incisor tooth: Universal designation O; ISO designation 7123839active
162350D Primary upper left lateral incisor toothDeciduous maxillary left lateral incisor tooth; Universal designation G; ISO designation 6223831active
162418D Primary upper left central incisor toothDeciduous maxillary left central incisor tooth; Universal designation F; ISO designation 6123830active
162425D Primary lower right second molar toothDeciduous mandibular right second molar tooth; Universal designation T; ISO designation 8523844active
162441D Primary lower left canine toothDeciduous mandibular left canine tooth; Universal designation M; ISO designation 7323837active
162494D Primary upper right lateral incisor toothDeciduous maxillary right lateral incisor tooth; Universal designation D; ISO designation 5223828active
162537D Primary lower left first molar toothDeciduous mandibular left first molar tooth; Universal designation L; ISO designation 7423836active
162585D Primary upper left second molar toothDeciduous maxillary left second molar tooth; Universal designation J; ISO designation 6523834active
162619D Primary upper right central incisor toothDeciduous maxillary right central incisor tooth; Universal designation E; ISO designation 5123829active
163013D Mesial-lingualThe mesial lingual aspect of the tooth.23852active
163468D Distal-lingualThe distal lingual aspect of the tooth.23853active
163596D Distal-buccalThe distal buccal aspect of the tooth.23858active
163680D Mesial-buccalThe mesial buccal aspect of the tooth.23860active
177259D Supernumerary permanent maxillary right central incisor toothSupernumerary permanent maxillary right central incisor tooth; Universal designation 5823988active
177263D Supernumerary deciduous maxillary left lateral incisor toothSupernumerary deciduous maxillary left lateral incisor tooth; Universal designation GS23956active
177271D Supernumerary permanent mandibular left lateral incisor toothSupernumerary permanent mandibular left lateral incisor tooth; Universal designation 7323967active
177285D Supernumerary permanent mandibular right central incisor toothSupernumerary permanent mandibular right central incisor tooth; Universal designation 7523972active
177292D Supernumerary deciduous mandibular left central incisor toothSupernumerary deciduous mandibular left central incisor tooth; Universal designation OS23944active
177302D Supernumerary deciduous mandibular right second molar toothSupernumerary deciduous mandibular right second molar tooth; Universal designation TS23952active
177318D Supernumerary deciduous mandibular left lateral incisor toothSupernumerary deciduous mandibular left lateral incisor tooth; Universal designation NS23946active
177325D Supernumerary permanent maxillary left second premolar toothSupernumerary permanent maxillary left second premolar tooth; Universal designation 6323985active
177339D Supernumerary permanent maxillary right canine toothSupernumerary permanent maxillary right canine tooth; Universal designation 5623987active
177341D Supernumerary permanent mandibular right canine toothSupernumerary permanent mandibular right canine tooth; Universal designation 7723971active
177356D Supernumerary permanent maxillary left canine toothSupernumerary permanent maxillary left canine tooth; Universal designation 6123979active
177360D Supernumerary deciduous maxillary right first molar toothSupernumerary deciduous maxillary right first molar tooth; Universal designation BS23960active
177373D Supernumerary permanent maxillary left second molar toothSupernumerary permanent maxillary left second molar tooth; Universal designation 6523984active
177387D Supernumerary deciduous mandibular right canine toothSupernumerary deciduous mandibular right canine tooth; Universal designation RS23948active
177394D Supernumerary permanent maxillary right third molar toothSupernumerary permanent maxillary right third molar tooth; Universal designation 5123994active
177409D Supernumerary permanent mandibular right second premolar toothSupernumerary permanent mandibular right second premolar tooth; Universal designation 7923977active
177413D Supernumerary permanent mandibular right first molar toothSupernumerary permanent mandibular right first molar tooth; Universal designation 8023973active
177421D Supernumerary deciduous mandibular left first molar toothSupernumerary deciduous mandibular left first molar tooth; Universal designation LS23945active
177432D Supernumerary permanent mandibular right second molar toothSupernumerary permanent mandibular right second molar tooth; Universal designation 8123976active
177445D Supernumerary permanent maxillary left first premolar toothSupernumerary permanent maxillary left first premolar tooth; Universal designation 6223982active
177450D Supernumerary deciduous mandibular right central incisor toothSupernumerary deciduous mandibular right central incisor tooth; Universal designation PS23949active
177466D Supernumerary deciduous mandibular right lateral incisor toothSupernumerary deciduous mandibular right lateral incisor tooth; Universal designation QS23951active
177478D Supernumerary permanent mandibular left first molar toothSupernumerary permanent mandibular left first molar tooth; Universal designation 6923965active
177484D Supernumerary permanent maxillary right lateral incisor toothSupernumerary permanent maxillary right lateral incisor tooth; Universal designation 5723991active
177497D Supernumerary deciduous maxillary left canine toothSupernumerary deciduous maxillary left canine tooth; Universal designation HS23953active
177506D Supernumerary permanent mandibular right lateral incisor toothSupernumerary permanent mandibular right lateral incisor tooth; Universal designation 7623975active
177510D Supernumerary permanent mandibular left central incisor toothSupernumerary permanent mandibular left central incisor tooth; Universal designation 7423964active
177523D Supernumerary permanent mandibular left canine toothSupernumerary permanent mandibular left canine tooth; Universal designation 7223963active
177534D Supernumerary permanent maxillary right first molar toothSupernumerary permanent maxillary right first molar tooth; Universal designation 5323989active
177547D Supernumerary permanent maxillary right second premolar toothSupernumerary permanent maxillary right second premolar tooth; Universal designation 5423993active
177552D Supernumerary deciduous mandibular left canine toothSupernumerary deciduous mandibular left canine tooth; Universal designation MS23943active
177568D Supernumerary permanent maxillary left third molar toothSupernumerary permanent maxillary left third molar tooth; Universal designation 6623986active
177575D Supernumerary deciduous maxillary right canine toothSupernumerary deciduous maxillary right canine tooth; Universal designation CS23958active
177581D Supernumerary deciduous maxillary left second molar toothSupernumerary deciduous maxillary left second molar tooth; Universal designation JS23957active
177599D Supernumerary permanent mandibular right first premolar toothSupernumerary permanent mandibular right first premolar tooth; Universal designation 7823974active
177608D Supernumerary permanent mandibular right third molar toothSupernumerary permanent mandibular right third molar tooth; Universal designation 8223978active
177612D Supernumerary permanent maxillary right first premolar toothSupernumerary permanent maxillary right first premolar tooth; Universal designation 5523990active
177620D Supernumerary deciduous maxillary right lateral incisor toothSupernumerary deciduous maxillary right lateral incisor tooth; Universal designation DS23961active
177631D Supernumerary permanent mandibular left first premolar toothSupernumerary permanent mandibular left first premolar tooth ; Universal designation 7123966active
177649D Supernumerary permanent maxillary right second molar toothSupernumerary permanent maxillary right second molar tooth; Universal designation 5223992active
177654D Supernumerary permanent maxillary left first molar toothSupernumerary permanent maxillary left first molar tooth; Universal designation 6423981active
177665D Supernumerary deciduous maxillary right second molar toothSupernumerary deciduous maxillary right second molar tooth; Universal designation AS23962active
177677D Supernumerary permanent mandibular left second molar toothSupernumerary permanent mandibular left second molar tooth; Universal designation 6823968active
177683D Supernumerary permanent maxillary left lateral incisor toothSupernumerary permanent maxillary left lateral incisor tooth; Universal designation 6023983active
177696D Supernumerary deciduous maxillary right central incisor toothSupernumerary deciduous maxillary right central incisor tooth; Universal designation ES23959active
177704D Supernumerary deciduous mandibular left second molar toothSupernumerary deciduous mandibular left second molar tooth ; Universal designation KS23947active
177715D Supernumerary deciduous maxillary left first molar toothSupernumerary deciduous maxillary left first molar tooth; Universal designation IS23955active
177727D Supernumerary permanent mandibular left second premolar toothSupernumerary permanent mandibular left second premolar tooth; Universal designation 7023969active
177736D Supernumerary deciduous maxillary left central incisor toothSupernumerary deciduous maxillary left central incisor tooth; Universal designation FS23954active
177743D Supernumerary permanent mandibular left third molar toothSupernumerary permanent mandibular left third molar tooth; Universal designation 6723970active
177758D Supernumerary deciduous mandibular right first molar toothSupernumerary deciduous mandibular right first molar tooth; Universal designation SS23950active
177762D Supernumerary permanent maxillary left central incisor toothSupernumerary permanent maxillary left central incisor tooth; Universal designation 5923980active
197703D OverjetOverjet24033active
198545D Complete trisomy 21 syndromeComplete trisomy 21 syndrome24016active
199380D Marfan syndromeMarfan syndrome24017active
209615D Lower labial frenumThe folds of mucous membrane extending from the gingiva to the midline of the lower lip.23854active
209620D Upper labial frenumThe folds of mucous membrane extending from the gingiva to the midline of the upper lip.23855active
209631D Upper buccal frenumA fold or band of mucous membrane connecting the upper alveolar ridge to the cheek and separating the labial vestibule from the buccal vestibule23856active
209645D Lower buccal frenumA fold or band of mucous membrane connecting the lower alveolar ridge to the cheek and separating the labial vestibule from the buccal vestibule23857active
210116D Active dental cariesActive dental caries23997active
210952D Deep impinging overbite with soft tissue destructionDeep impinging overbite with soft tissue destruction23999active
210953D Anterior crossbite with destruction of oral mucosaAnterior crossbite with destruction of oral mucosa24000active
210954D Lip incompetence due to horizontal overbiteLip incompetence due to horizontal overbite24001active
210955D Posterior crossbite limited to left sidePosterior crossbite limited to left side24002active
210956D Posterior crossbite limited to right sidePosterior crossbite limited to right side24003active
210957D Articulatory defect secondary to dental defectArticulatory defect secondary to dental defect24006active
210958D Cleft lip & alveolusCleft lip & alveolus24009active
210959D Craniosynostosis syndromeCraniosynostosis syndrome24012active
210960D ArthrogryposisArthrogryposis24015active
210962D Mixed DentitionMixed Dentition24025active
210963D Anterior segment of maxillaAnterior segment of maxilla24029active
210964D Posterior segment of maxillaPosterior segment of maxilla24030active
210965D Anterior part of lower alveolar ridgeAnterior part of lower alveolar ridge24031active
210966D Posterior part of lower alveolar ridgePosterior part of lower alveolar ridge24032active
210967D OverbiteOverbite24034active
210972D Anterior deviation of posterior interarchAnterior deviation of posterior interarch24037active
210974D Posterior deviation of posterior interarchPosterior deviation of posterior interarch24038active

History

DateActionAuthorCustodianComment
2020-08-17reviseTed KleinVocabulary WGAdd element to declare case sensitivity explicitly - needed for FHIR support