SNOMED CT Snapshot Extended Map Reference Set to ICD-10-CM Map

$716 / year

This dataset is one of the three separate files that the ICD-10-CM MAP contains. Extended Map contains the core publication of MAP data. There are one or more map records for each source concept mapped, including the ICD-10-CM target codes. This dataset is an update of the SNOMED CT to ICD-10-CM Cross Map. The purpose of this update is to synchronize with the latest release of the US Edition of SNOMED CT by removing obsolete content.


The mapping in this dataset is identified by the refsetid 6011000124106. Extended Map contains the core publication of MAP data. There are one or more map records for each source concept mapped, including the ICD-10-CM target codes.

SNOMED CT is an extensive clinical terminology that was formed by the merger, expansion, and restructuring of SNOMED RT (Reference Terminology) and the United Kingdom National Health Service (NHS) Clinical Terms (also known as the Read Codes). It is the most comprehensive clinical vocabulary available in English (or any language). SNOMED CT is concept-oriented and has an advanced structure that meets most accepted criteria for a well-formed, machine-readable terminology. It has been designated as a US standard for electronic health information exchange in Interoperability Specifications produced by the Healthcare Information Technology Standards Panel and has also been adopted for use by the US Federal Government, through the Consolidated Health Informatics (CHI) Initiative, for several clinical domains.

This cross map is a directed set of relationships from SNOMED CT source concepts to ICD-10-CM target classification codes. The SNOMED CT source domains for this mapping are limited to subtypes of 404684003 |clinical findings|, 272379006 |event| and 243796009 |situation with explicit context|.

This update of the map includes:
– 100,185 SNOMED CT source concepts including:
– 94,844 clinical findings
– 2,813 events
– 2,528 situations with explicit context
– 5,696 source concepts could not be assigned a map target due to issues of ambiguity or target scope
– A total of 168,810 map records, with a maximum of 23 map records per map group

Date Created


Last Modified




Update Frequency


Temporal Coverage


Spatial Coverage

United States


John Snow Labs; International Health Terminology Standards Development Organization (IHTSDO), U.S. National Library of Medicine (NLM);

Source License URL

Source License Requirements


Source Citation



Clinical Terminology, ICD-10-CM Codes, SNOMED CT, Systematized Nomenclature of Medicine Clinical Terms, Healthcare Terminology Mapping, Electronic Health Records, SNOMED to ICD-10 Map

Other Titles

SNOMED CT and ICD-10-CM Cross Mapping, Mapping of SNOMED CT Snapshot Extended Map Refset and ICD-10 CM

Map_Record_IdAn unsigned integer, uniquely identifying the map record.stringrequired : 1
Effective_TimeSpecifies the inclusive date at which this change becomes effective.daterequired : 1
Is_ActiveSpecifies whether the member’s state was active (=1) or inactive (=0) from the nominal release date specified by the effectiveTime field.booleanrequired : 1
Module_IdIdentifies the member version’s module. Set to a child of 900000000000443000|Module| within the metadata hierarchy.integerrequired : 1 level : Nominal
Refset_IdSet to one of the children of the |Complex map type| concept in the metadata hierarchy.integerrequired : 1 level : Nominal
Referenced_Component_IdThe SNOMED CT source concept ID that is the subject of the map record.integerrequired : 1 level : Nominal
Map_GroupAn integer identifying a grouping of complex map records which will designate one map target at the time of map rule evaluation. Source concepts that require two map targets for classification will have two sets of map groups.integerrequired : 1 level : Nominal
Map_PriorityWithin a map group, the Map_Priority specifies the order in which complex map records should be evaluated to determine the correct map target.integerrequired : 1 level : Nominal
Map_RuleA machine-readable rule, (evaluating to either ‘true’ or ‘false’ at run-time) that indicates whether this map record should be selected within its map groupstringrequired : 1
Map_AdviceHuman-readable advice that may be employed by the software vendor to give an end-user advice on selection of the appropriate target code. This includes a) a summary statement of the map rule logic, b) a statement of any limitations of the map record and c) additional classification guidance for the coding professional.stringrequired : 1
Map_TargetThe target ICD-10 classification code of the map record.string-
Correlation_IdA child of |Map correlation value| in the metadata hierarchy, identifying the correlation between the SNOMED CT concept and the target code.integerrequired : 1 level : Nominal
Map_Category_IdIdentifies the SNOMED CT concept in the metadata hierarchy which is the Map_Category for the associated map record. This is a subtype of 447634004 |ICD-10 Map Category value|.integerrequired : 1 level : Nominal
3605f44b-db9c-557f-bd98-a5b7e4cb6c012017-03-01true5991000124107601100012410615000311TRUEALWAYS R32R32447561005447637006
1eb060c9-3bd6-59b6-bb14-dfea10245af02017-03-01true5991000124107601100012410621600411TRUEALWAYS F22F22447561005447637006
edcc83b2-b9e8-5e66-824d-ffc0125a38432017-03-01true5991000124107601100012410633000711TRUEALWAYS R51R51447561005447637006
aecc0509-98cf-53f7-bd21-21196ddcb9a32017-03-01true5991000124107601100012410665100311TRUEALWAYS F99F99447561005447637006
4a2b9055-13bc-589f-b3f5-9254a1ef46242017-03-01true5991000124107601100012410696100711TRUEALWAYS L52L52447561005447637006
1554b89a-771a-54e4-a69d-635ac65941fd2017-03-01true59910001241076011000124106174200711TRUEALWAYS F66F66447561005447637006
32511bf1-7d5c-5987-ae0e-98cf020db30f2017-03-01true59910001241076011000124106213400311TRUEALWAYS R52R52447561005447637006
e5effdf8-4266-5792-a7e7-528ebf454c472017-03-01true59910001241076011000124106299400411TRUEALWAYS F99F99447561005447637006
ba292429-1505-5054-95ba-20d0a47e1a0a2017-03-01true59910001241076011000124106309500511TRUEALWAYS B54B54447561005447637006
a037d159-8b57-5d4b-9ad6-c352e1621b142017-03-01true59910001241076011000124106316800211TRUEALWAYS G08G08447561005447637006