Selecting the correct box in Atlas for events and medical codes

By default, Atlas will include all registers to the search except the DEATH register. See instructions on how to restrict the search for specific registers. To search from the DEATH register the concept set can be added as another entry or inclusion criteria.

Finnish-specific non-standard codes are mapped to OMOP-CDM standard codes both of which are available in Atlas. Most of the Finnish codes are classified under conditions, procedures, or drug domains. The observation domain contains other clinical facts that cannot be represented by any other domains like conditions, procedures, or drug domains.

Sometimes it may be difficult to decide the boxes where to set the search criteria. The following table gives examples of how to select registers and medical code(s) for the entry, inclusion, and exit event criteria in Atlas. See instructions on how to define a cohort in Atlas. Note that all registries except the DEATH register are included by default if not filtered by clinical registers. Example figures are under the table.

Select in Atlas	Register	Concept set	Example (below)
A condition occurrence of 'Any Condition' + Condition Source concept is 'my concept set'	INPAT, OUTPAT, PRIM_OUT	ICD8, ICD9, ICD10 (non-standard)	Example 1.
A death occurrence from 'Any Death' + Death Source concept is 'my concept set'	DEATH	ICD9, ICD10 (non-standard)	Example 2.
Procedure Occurrence of 'Any Procedure' + Procedure Source concept is 'my concept set'	OPER_IN / OPER_OUT	NOMESCO (non-standard)	Example 3.
Procedure Occurrence is 'my concept set'	OPER_IN / OPER_OUT	SNOMED (standard)	Example 4.
Observation is 'my concept set'	INPAT, OUTPAT, PRIM_OUT	SNOMED (standard)	Example 5.
A condition occurrence of 'Any Condition' + Condition Source concept is 'my concept set'	CANC, INPAT, OUTPAT, PRIM_OUT	ICDO3, ICPC2 (non-standard)	Example 6.
A drug exposure of 'any drug' & Drug Source concept is 'my concept set'	PURCH	ATC (non-standard)	Example 7.
A drug exposure of 'any drug' & Drug Source concept is 'my concept set'	REIMB	ICD9, ICD10 (non-standard)	Example 7.

Example 1. Condition + non-standard code

Example 2. Death register + non-standard code

Example 3. Procedure + non-standard code

Example 4. Procedure + standard code

Example 5. Observation + standard code

Tip! You can check Domain and Standard Concept Caption from the Concept Sets page.

Example 6. Condition + non-standard ICPC2 and ICD10 codes

Click Concept Name to open the concept's Vocabulary view where you can check the Concept Class, Vocabulary, Domain, and whether the code is standard or non-standard.

Example 7. Drug exposure + non-standard code