Why are concept_name and codes null/empty in vocab file for certain records?
Standard vocabulary updates / change logs?
Inconsistent Vocabulary Options for Observation
Lacks a mapping to a standard concept_id
Standard Concepts Becoming Non-Standard Question
NDCs marked invalid with no standard concept mapping
Duplicate CONCEPT_ID's for different Condition Concept ID's
CTD (CAS) vocabulary
How we describe "drug_type_concept_id" in terms of discharging order
Is Vocabulary available for OMOP_CDM_v6?
How to map a country specific reimburesement codes to the CDM?
Device WG: Vocabulary questions around devices
Condition type for French discharge diagnosis codes
Gene and Biomarker ontologies in OHDSI
Vascular dialysis catheter sequela codes
Concept has descendants in ATHENA but not in my database
Concepts are forever?
How is delirium (without dementia) identified in ICD10CM?
Some ICD10CM codes are not mapped correctly
Visit concept_id ambiguity
NOMESCO procedure codes to SNOMED
Source Code - OMOP CDM Vocabs
What is the concept_id suitable for 'silver in situ hybridization'
Understanding SNOMED relations for rheumatoid arthritis
Mapping new code(ICNP) to ohdsi vocabularies
MedDRA is missing from Athena
KCD7 T39.1 relationship
ICD-10-CM M62.84 (Sarcopenia)
ATC for influenza vaccines only maps to few meningococcal vaccines
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