2012AB MedDRA Japanese Source Information

Counts

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Term Type	Description	Count (MRCONSO.RRF)
LT	Lower Level Term	48705
LTJKN	Japanese Lower Level Term (kana)	48705
PT	Designated preferred name	19550
PTJKN	Japanese Designated preferred name (kana)	19550
OL	Non-current Lower Level Term	15077
OLJKN	Japanese Non-current Lower Level Term (kana)	15077
LTJKN1	Japanese Lower Level Term (kana1)	1894
HT	Hierarchical term	1713
HTJKN	Japanese Hierarchical term (kana)	1713
OLJKN1	Japanese Non-current Lower Level Term (kana1)	762
PTJKN1	Japanese Designated preferred name (kana1)	674
HG	High Level Group Term	335
HGJKN	Japanese High Level Group Term (kana)	335
SMQ	Standardised MedDRA Query	203
HTJKN1	Japanese Hierarchical term (kana1)	42
OS	System-organ class	26
OSJKN	Japanese System-organ class in the WHO Adverse Reaction Terminology (kana)	26
HGJKN1	Japanese High Level Group Term (kana1)	11
OSJKN1	Japanese System-organ class in the WHO Adverse Reaction Terminology (kana1)	1

Notes

• A term type indicates the role an atom plays in its source
• An atom is the smallest unit of naming in a source; that is, a specific string with specific code values and identifiers from a specific source.
• Every atom has a separate row in MRCONSO.RRF. Every atom is assigned a term type.
• Term types are assigned based on source documentation or NLM understanding of the source.
• Sample data are provided for every term type in the source (see below).
• See Metathesaurus Documentation for a list of all term type abbreviations and their full names.
• See Metathesaurus Documentation for a list of sources and their associated term types, listed in default order of precedence.
• See Section 2.3 of the UMLS Reference Manual for more information on terms and term types in the UMLS Metathesaurus.

Sample Data