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Unified Medical Language System (UMLS)

CCC (Clinical Care Classification) - Metathesaurus Representation





Skip to: Atoms, Attributes, Definitions, Relationships, Mappings

VSAB:   CCC2_5

Summary of Changes

CCC (Clinical Care Classification) was previously labeled "HHC" (Home Healthcare Classification) in the Metathesaurus. CCC2_5 is an update to HHC2003.

Changes from HHC2003 to CCC2_5:

Assigned "structural" termtypes (HT, PT) instead of "semantic" termtypes (CO, DX, IV):
  • Deleted TTYs: CO, DX, IV
  • New TTYs: PT, HT, MTH_HT
Separated diagnoses and interventions in hierarchy (required new TTY, MTH_HT for "placeholder" atoms)

Source Provided Files:

The CCC distribution includes the following files. This data, along with additional information can be accessed at http://www.sabacare.com/
CCC_Diagnoses_HL7_V2.5_21SEPT11.xlsx
CCC_Interventions_HL7_V2.5_Version-A_21Sept11.xlsx
CCC_Outcomes_HL7_V2.5_ 21Sept11.xlsx

These files were converted to text.  Metathesaurus source processing included some data and format clean up.

Additional files of components and modifiers were created for inclusion in the Metathesaurus. 

Identifiers:

Identifiers are assigned as follows:

CODE: 
  • Components:  Component Letter
  • Diagnoses:  Component Letter concatenated with Diagnosis Code
  • Interventions:  Component Letter concatenated with Intervention Code
  • Modifiers:  Modifier Number
SAUI:  Not applicable
SCUI:  Same as CODE
SDUI:  Not applicable

Atoms (MRCONSO):


Term Type Description
Origin
HT
Hierarchical Term (Component)

CODE:  Component Letter
STR:   Component Name
SCUI: Component Letter

MP
Modifier
CODE:  Modifier Number
STR: Modifier Name
SCUI: Modifier Number
MTH_HT
MTH Hierarchical Placeholder Term
Created to separate Intervention and Diagnoses sections of hierarchy
CODE:  MTHU#
STR:  "Interventions" or "Diagnoses"
SCUI:  MTHU#

The CODE and STR are created during Metathesaurus source processing
PT
Preferred Term (Diagnosis or Intervention)
CODE:  Component Letter, concatenated with Diagnosis or Intervention Code
STR:  Diagnosis or Intervention Name
SCUI:  Component Letter, concatenated with Diagnosis or Intervention Code

Attributes (MRSAT):


No attributes are included for CCC2_5



Definitions (MRDEF):

Definitions are created from data in the "Definition/Description" fields.


Relationships (MRREL):


REL RELA
inverse_RELA
Origin
AQ
QB
actual_outcome_of
has_actual_outcome
Connects modifiers to diagnoses to create "outcomes"
AQ
QB
expected_outcome_of
has_expectted_outcome
Connects modifiers to diagnoses to create "outcomes"
AQ
QB
modifies
modified_by
Connects modifiers to interventions


Mappings (MRMAP):

No relationships to other sources are processed for this version of CCC.