Systematized Nomenclature of Dentistry (SNODENT)

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

Code

URI

Type

Description

internalId

http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id

code

The internal identifier for the concept in the HL7 Access database repository.

status

http://hl7.org/fhir/concept-properties#status

code

Designation 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:

Code	Display	Definition	internalId	status
100203D	Tooth Absent	Tooth Absent	24020	active
103356D	Lingual Surface	The lingual aspect of the tooth.	23849	active
103387D	Buccal Surface	The buccal aspect of the tooth.	23848	active
104161D	Impacted tooth	Impacted tooth	24021	active
108042D	Bone structure of maxilla	Bone structure of maxilla	24027	active
115902D	Cleft palate with cleft lip	Cleft palate with cleft lip	24008	active
116259D	Supernumerary tooth	Supernumerary tooth	24023	active
116762D	Tooth mobility - grade 1	Tooth can be moved less than 1mm in the buccolingual or mesiodistal direction	23845	active
117349D	Juvenile rheumatoid arthritis	Juvenile rheumatoid arthritis	24018	active
121288D	Primary Dentition	Primary Dentition	24024	active
121344D	Anterior open bite	Anterior open bite	24036	active
122924D	Hemifacial microsomia	Hemifacial microsomia	24011	active
127066D	Ankylosis of tooth	Ankylosis of tooth	24022	active
127434D	Posterior crossbite	Posterior crossbite	24039	active
132513D	Mesial Surface	The mesial aspect of the tooth.	23850	active
132578D	Cleft palate	Cleft palate	24010	active
133426D	Gingival Recession	Gingival Recession	24005	active
133572D	Cleidocranial dysostosis	Cleidocranial dysostosis	24013	active
136123D	Tooth mobility - grade 2	Tooth can be moved 1mm or more in the buccolingual or mesiodistal direction. No mobility in the occlusoapical direction (vertical mobility).	23846	active
137027D	Anterior crossbite	Anterior crossbite	24035	active
138900D	Defective dental restoration	Defective dental restoration	23998	active
139017D	Permanent Dentition	Permanent Dentition	24026	active
139277D	Facial surface of tooth	The side of a tooth adjacent to the inside of the cheek or lips.	23859	active
139347D	Ectopic tooth	Ectopic tooth	24019	active
140234D	Poor oral hygiene	Poor oral hygiene	23995	active
141881D	Posterior open bite	Posterior open bite	24040	active
143353D	Temporomandibular joint disorder	Temporomandibular joint disorder	23996	active
144511D	Bone structure of mandible	Bone structure of mandible	24028	active
146014D	Distal Surface	The distal aspect of the tooth.	23851	active
146718D	Treacher Collins syndrome	Treacher Collins syndrome	24014	active
149641D	Tooth mobility - grade 3	Tooth can be moved 1mm or more in the buccolingual or mesiodistal direction. Mobility in the occlusoapical direction is also present (vertical mobility)	23847	active
149694D	Cleft lip	Cleft lip	24007	active
157044D	Bimaxillary protrusion	Bimaxillary protrusion	24004	active
160654D	Permanent lower left first premolar tooth	Permanent mandibular left first premolar tooth; Universal designation 21; ISO designation 34	23813	active
160704D	Permanent lower right second molar tooth	Permanent mandibular right second molar tooth; Universal designation 31; ISO designation 47	23823	active
160770D	Permanent lower right first molar tooth	Permanent mandibular right first molar tooth; Universal designation 30; ISO designation 46	23822	active
160817D	Permanent lower left canine tooth	Permanent mandibular left canine tooth; Universal designation 22; ISO designation 33	23814	active
160840D	Permanent upper right canine tooth	Permanent maxillary right canine tooth; Universal designation 6; ISO designation 13	23798	active
160903D	Permanent upper right central incisor tooth	Permanent maxillary right central incisor tooth; Universal designation 8; ISO designation 11	23800	active
160957D	Permanent upper left canine tooth	Permanent maxillary left canine tooth; Universal designation 11; ISO designation 23	23803	active
161006D	Permanent upper left central incisor tooth	Permanent maxillary left central incisor tooth; Universal designation 9; ISO designation 21	23801	active
161010D	Permanent upper right first molar tooth	Permanent maxillary right first molar tooth; Universal designation 3; ISO designation 16	23795	active
161068D	Permanent lower left central incisor tooth	Permanent mandibular left central incisor tooth; Universal designation 24; ISO designation 31	23816	active
161109D	Permanent upper left lateral incisor tooth	Permanent maxillary left lateral incisor tooth; Universal designation 10; ISO designation 22	23802	active
161121D	Permanent lower right third molar tooth	Permanent mandibular right third molar tooth; Universal designation 32; ISO designation 48	23824	active
161132D	Permanent upper left first molar tooth	Permanent maxillary left first molar tooth; Universal designation 14; ISO designation 26	23806	active
161150D	Permanent lower left second premolar tooth	Permanent mandibular left second premolar tooth; Universal designation 20; ISO designation 35	23812	active
161178D	Permanent upper left second premolar tooth	Permanent maxillary left second premolar tooth; Universal designation 13; ISO designation 25	23805	active
161197D	Permanent lower right lateral incisor tooth	Permanent mandibular right lateral incisor tooth; Universal designation 26; ISO designation 42	23818	active
161227D	Permanent upper right third molar tooth	Permanent maxillary right third molar tooth; Universal designation 1; ISO designation 18	23793	active
161258D	Permanent lower left third molar tooth	Permanent mandibular left third molar tooth; Universal designation 17; ISO designation 38	23809	active
161262D	Permanent upper right second molar tooth	Permanent maxillary right second molar tooth; Universal designation 2; ISO designation 17	23794	active
161291D	Permanent lower right central incisor tooth	Permanent mandibular right central incisor tooth; Universal designation 25; ISO designation 41	23817	active
161317D	Permanent upper left second molar tooth	Permanent maxillary left second molar tooth; Universal designation 15; ISO designation 27	23807	active
161329D	Permanent upper left first premolar tooth	Permanent maxillary left first premolar tooth; Universal designation 12; ISO designation 24	23804	active
161372D	Permanent lower left second molar tooth	Permanent mandibular left second molar tooth; Universal designation 18; ISO designation 37	23810	active
161412D	Permanent lower right second premolar tooth	Permanent mandibular right second premolar tooth; Universal designation 29; ISO designation 45	23821	active
161454D	Permanent upper left third molar tooth	Permanent maxillary left third molar tooth; Universal designation 16; ISO designation 28	23808	active
161477D	Permanent lower left lateral incisor tooth	Permanent mandibular left lateral incisor tooth; Universal designation 23; ISO designation 32	23815	active
161496D	Permanent lower right first premolar tooth	Permanent mandibular right first premolar tooth; Universal designation 28; ISO designation 44	23820	active
161514D	Permanent lower right canine tooth	Permanent mandibular right canine tooth; Universal designation 27; ISO designation 43	23819	active
161533D	Permanent lower left first molar tooth	Permanent mandibular left first molar tooth; Universal designation 19; ISO designation 36	23811	active
161546D	Permanent upper right second premolar tooth	Permanent maxillary right second premolar tooth; Universal designation 4; ISO designation 15	23796	active
161607D	Permanent upper right first premolar tooth	Permanent maxillary right first premolar tooth; Universal designation 5; ISO designation 14	23797	active
161892D	Primary lower right canine tooth	Deciduous mandibular right canine tooth; Universal designation R; ISO designation 83	23842	active
161941D	Permanent upper right lateral incisor tooth	Permanent maxillary right lateral incisor tooth; Universal designation 7; ISO designation 12	23799	active
161956D	Primary lower right lateral incisor tooth	Deciduous mandibular right lateral incisor tooth; Universal designation Q; ISO designation 82	23841	active
162004D	Primary upper left first molar tooth	Deciduous maxillary left first molar tooth; Universal designation I; ISO designation 64	23833	active
162062D	Primary lower right central incisor tooth	Deciduous mandibular right central incisor tooth; Universal designation P; ISO designation 81	23840	active
162091D	Primary upper right second molar tooth	Deciduous maxillary right second molar tooth; Universal designation A; ISO designation 55	23825	active
162129D	Primary lower left lateral incisor tooth	Deciduous mandibular left lateral incisor tooth; Universal designation N; ISO designation 72	23838	active
162206D	Primary lower right first molar tooth	Deciduous mandibular right first molar tooth: Universal designation S; ISO designation 84	23843	active
162234D	Primary upper right first molar tooth	Deciduous maxillary right first molar tooth; Universal designation B; ISO designation 54	23826	active
162268D	Primary upper right canine tooth	Deciduous maxillary right canine tooth; Universal designation C; ISO designation 53	23827	active
162309D	Primary upper left canine tooth	Deciduous maxillary left canine tooth; Universal designation H; ISO designation 63	23832	active
162321D	Primary lower left second molar tooth	Deciduous mandibular left second molar tooth; Universal designation K; ISO designation 75	23835	active
162345D	Primary lower left central incisor tooth	Deciduous mandibular left central incisor tooth: Universal designation O; ISO designation 71	23839	active
162350D	Primary upper left lateral incisor tooth	Deciduous maxillary left lateral incisor tooth; Universal designation G; ISO designation 62	23831	active
162418D	Primary upper left central incisor tooth	Deciduous maxillary left central incisor tooth; Universal designation F; ISO designation 61	23830	active
162425D	Primary lower right second molar tooth	Deciduous mandibular right second molar tooth; Universal designation T; ISO designation 85	23844	active
162441D	Primary lower left canine tooth	Deciduous mandibular left canine tooth; Universal designation M; ISO designation 73	23837	active
162494D	Primary upper right lateral incisor tooth	Deciduous maxillary right lateral incisor tooth; Universal designation D; ISO designation 52	23828	active
162537D	Primary lower left first molar tooth	Deciduous mandibular left first molar tooth; Universal designation L; ISO designation 74	23836	active
162585D	Primary upper left second molar tooth	Deciduous maxillary left second molar tooth; Universal designation J; ISO designation 65	23834	active
162619D	Primary upper right central incisor tooth	Deciduous maxillary right central incisor tooth; Universal designation E; ISO designation 51	23829	active
163013D	Mesial-lingual	The mesial lingual aspect of the tooth.	23852	active
163468D	Distal-lingual	The distal lingual aspect of the tooth.	23853	active
163596D	Distal-buccal	The distal buccal aspect of the tooth.	23858	active
163680D	Mesial-buccal	The mesial buccal aspect of the tooth.	23860	active
177259D	Supernumerary permanent maxillary right central incisor tooth	Supernumerary permanent maxillary right central incisor tooth; Universal designation 58	23988	active
177263D	Supernumerary deciduous maxillary left lateral incisor tooth	Supernumerary deciduous maxillary left lateral incisor tooth; Universal designation GS	23956	active
177271D	Supernumerary permanent mandibular left lateral incisor tooth	Supernumerary permanent mandibular left lateral incisor tooth; Universal designation 73	23967	active
177285D	Supernumerary permanent mandibular right central incisor tooth	Supernumerary permanent mandibular right central incisor tooth; Universal designation 75	23972	active
177292D	Supernumerary deciduous mandibular left central incisor tooth	Supernumerary deciduous mandibular left central incisor tooth; Universal designation OS	23944	active
177302D	Supernumerary deciduous mandibular right second molar tooth	Supernumerary deciduous mandibular right second molar tooth; Universal designation TS	23952	active
177318D	Supernumerary deciduous mandibular left lateral incisor tooth	Supernumerary deciduous mandibular left lateral incisor tooth; Universal designation NS	23946	active
177325D	Supernumerary permanent maxillary left second premolar tooth	Supernumerary permanent maxillary left second premolar tooth; Universal designation 63	23985	active
177339D	Supernumerary permanent maxillary right canine tooth	Supernumerary permanent maxillary right canine tooth; Universal designation 56	23987	active
177341D	Supernumerary permanent mandibular right canine tooth	Supernumerary permanent mandibular right canine tooth; Universal designation 77	23971	active
177356D	Supernumerary permanent maxillary left canine tooth	Supernumerary permanent maxillary left canine tooth; Universal designation 61	23979	active
177360D	Supernumerary deciduous maxillary right first molar tooth	Supernumerary deciduous maxillary right first molar tooth; Universal designation BS	23960	active
177373D	Supernumerary permanent maxillary left second molar tooth	Supernumerary permanent maxillary left second molar tooth; Universal designation 65	23984	active
177387D	Supernumerary deciduous mandibular right canine tooth	Supernumerary deciduous mandibular right canine tooth; Universal designation RS	23948	active
177394D	Supernumerary permanent maxillary right third molar tooth	Supernumerary permanent maxillary right third molar tooth; Universal designation 51	23994	active
177409D	Supernumerary permanent mandibular right second premolar tooth	Supernumerary permanent mandibular right second premolar tooth; Universal designation 79	23977	active
177413D	Supernumerary permanent mandibular right first molar tooth	Supernumerary permanent mandibular right first molar tooth; Universal designation 80	23973	active
177421D	Supernumerary deciduous mandibular left first molar tooth	Supernumerary deciduous mandibular left first molar tooth; Universal designation LS	23945	active
177432D	Supernumerary permanent mandibular right second molar tooth	Supernumerary permanent mandibular right second molar tooth; Universal designation 81	23976	active
177445D	Supernumerary permanent maxillary left first premolar tooth	Supernumerary permanent maxillary left first premolar tooth; Universal designation 62	23982	active
177450D	Supernumerary deciduous mandibular right central incisor tooth	Supernumerary deciduous mandibular right central incisor tooth; Universal designation PS	23949	active
177466D	Supernumerary deciduous mandibular right lateral incisor tooth	Supernumerary deciduous mandibular right lateral incisor tooth; Universal designation QS	23951	active
177478D	Supernumerary permanent mandibular left first molar tooth	Supernumerary permanent mandibular left first molar tooth; Universal designation 69	23965	active
177484D	Supernumerary permanent maxillary right lateral incisor tooth	Supernumerary permanent maxillary right lateral incisor tooth; Universal designation 57	23991	active
177497D	Supernumerary deciduous maxillary left canine tooth	Supernumerary deciduous maxillary left canine tooth; Universal designation HS	23953	active
177506D	Supernumerary permanent mandibular right lateral incisor tooth	Supernumerary permanent mandibular right lateral incisor tooth; Universal designation 76	23975	active
177510D	Supernumerary permanent mandibular left central incisor tooth	Supernumerary permanent mandibular left central incisor tooth; Universal designation 74	23964	active
177523D	Supernumerary permanent mandibular left canine tooth	Supernumerary permanent mandibular left canine tooth; Universal designation 72	23963	active
177534D	Supernumerary permanent maxillary right first molar tooth	Supernumerary permanent maxillary right first molar tooth; Universal designation 53	23989	active
177547D	Supernumerary permanent maxillary right second premolar tooth	Supernumerary permanent maxillary right second premolar tooth; Universal designation 54	23993	active
177552D	Supernumerary deciduous mandibular left canine tooth	Supernumerary deciduous mandibular left canine tooth; Universal designation MS	23943	active
177568D	Supernumerary permanent maxillary left third molar tooth	Supernumerary permanent maxillary left third molar tooth; Universal designation 66	23986	active
177575D	Supernumerary deciduous maxillary right canine tooth	Supernumerary deciduous maxillary right canine tooth; Universal designation CS	23958	active
177581D	Supernumerary deciduous maxillary left second molar tooth	Supernumerary deciduous maxillary left second molar tooth; Universal designation JS	23957	active
177599D	Supernumerary permanent mandibular right first premolar tooth	Supernumerary permanent mandibular right first premolar tooth; Universal designation 78	23974	active
177608D	Supernumerary permanent mandibular right third molar tooth	Supernumerary permanent mandibular right third molar tooth; Universal designation 82	23978	active
177612D	Supernumerary permanent maxillary right first premolar tooth	Supernumerary permanent maxillary right first premolar tooth; Universal designation 55	23990	active
177620D	Supernumerary deciduous maxillary right lateral incisor tooth	Supernumerary deciduous maxillary right lateral incisor tooth; Universal designation DS	23961	active
177631D	Supernumerary permanent mandibular left first premolar tooth	Supernumerary permanent mandibular left first premolar tooth ; Universal designation 71	23966	active
177649D	Supernumerary permanent maxillary right second molar tooth	Supernumerary permanent maxillary right second molar tooth; Universal designation 52	23992	active
177654D	Supernumerary permanent maxillary left first molar tooth	Supernumerary permanent maxillary left first molar tooth; Universal designation 64	23981	active
177665D	Supernumerary deciduous maxillary right second molar tooth	Supernumerary deciduous maxillary right second molar tooth; Universal designation AS	23962	active
177677D	Supernumerary permanent mandibular left second molar tooth	Supernumerary permanent mandibular left second molar tooth; Universal designation 68	23968	active
177683D	Supernumerary permanent maxillary left lateral incisor tooth	Supernumerary permanent maxillary left lateral incisor tooth; Universal designation 60	23983	active
177696D	Supernumerary deciduous maxillary right central incisor tooth	Supernumerary deciduous maxillary right central incisor tooth; Universal designation ES	23959	active
177704D	Supernumerary deciduous mandibular left second molar tooth	Supernumerary deciduous mandibular left second molar tooth ; Universal designation KS	23947	active
177715D	Supernumerary deciduous maxillary left first molar tooth	Supernumerary deciduous maxillary left first molar tooth; Universal designation IS	23955	active
177727D	Supernumerary permanent mandibular left second premolar tooth	Supernumerary permanent mandibular left second premolar tooth; Universal designation 70	23969	active
177736D	Supernumerary deciduous maxillary left central incisor tooth	Supernumerary deciduous maxillary left central incisor tooth; Universal designation FS	23954	active
177743D	Supernumerary permanent mandibular left third molar tooth	Supernumerary permanent mandibular left third molar tooth; Universal designation 67	23970	active
177758D	Supernumerary deciduous mandibular right first molar tooth	Supernumerary deciduous mandibular right first molar tooth; Universal designation SS	23950	active
177762D	Supernumerary permanent maxillary left central incisor tooth	Supernumerary permanent maxillary left central incisor tooth; Universal designation 59	23980	active
197703D	Overjet	Overjet	24033	active
198545D	Complete trisomy 21 syndrome	Complete trisomy 21 syndrome	24016	active
199380D	Marfan syndrome	Marfan syndrome	24017	active
209615D	Lower labial frenum	The folds of mucous membrane extending from the gingiva to the midline of the lower lip.	23854	active
209620D	Upper labial frenum	The folds of mucous membrane extending from the gingiva to the midline of the upper lip.	23855	active
209631D	Upper buccal frenum	A fold or band of mucous membrane connecting the upper alveolar ridge to the cheek and separating the labial vestibule from the buccal vestibule	23856	active
209645D	Lower buccal frenum	A fold or band of mucous membrane connecting the lower alveolar ridge to the cheek and separating the labial vestibule from the buccal vestibule	23857	active
210116D	Active dental caries	Active dental caries	23997	active
210952D	Deep impinging overbite with soft tissue destruction	Deep impinging overbite with soft tissue destruction	23999	active
210953D	Anterior crossbite with destruction of oral mucosa	Anterior crossbite with destruction of oral mucosa	24000	active
210954D	Lip incompetence due to horizontal overbite	Lip incompetence due to horizontal overbite	24001	active
210955D	Posterior crossbite limited to left side	Posterior crossbite limited to left side	24002	active
210956D	Posterior crossbite limited to right side	Posterior crossbite limited to right side	24003	active
210957D	Articulatory defect secondary to dental defect	Articulatory defect secondary to dental defect	24006	active
210958D	Cleft lip & alveolus	Cleft lip & alveolus	24009	active
210959D	Craniosynostosis syndrome	Craniosynostosis syndrome	24012	active
210960D	Arthrogryposis	Arthrogryposis	24015	active
210962D	Mixed Dentition	Mixed Dentition	24025	active
210963D	Anterior segment of maxilla	Anterior segment of maxilla	24029	active
210964D	Posterior segment of maxilla	Posterior segment of maxilla	24030	active
210965D	Anterior part of lower alveolar ridge	Anterior part of lower alveolar ridge	24031	active
210966D	Posterior part of lower alveolar ridge	Posterior part of lower alveolar ridge	24032	active
210967D	Overbite	Overbite	24034	active
210972D	Anterior deviation of posterior interarch	Anterior deviation of posterior interarch	24037	active
210974D	Posterior deviation of posterior interarch	Posterior deviation of posterior interarch	24038	active

History

Date

Action

Author

Custodian

Comment

2020-08-17

revise

Ted Klein

Vocabulary WG

Add element to declare case sensitivity explicitly - needed for FHIR support