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CID 12121 Vascular Indices and Ratios
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## CID 12121 Vascular Indices and Ratios

Type:

  Extensible

Version:

  20050110

Table CID 12121. Vascular Indices and Ratios

Coding Scheme Designator | Code Value | Code Meaning | SNOMED-CT Concept ID | UMLS Concept Unique ID
--- | --- | --- | --- | ---
LN | 20167-3 | Acceleration Index |  | C0802982
SRT | R-101BA | Lumen Area Stenosis | 408714007 | C1443264
SRT | R-101BB | Lumen Diameter Stenosis | 408715008 | C1443265
LN | 12008-9 | Pulsatility Index |  | C0552113
LN | 12023-8 | Resistivity Index |  | C0552128
LN | 12144-2 | Systolic to Diastolic Velocity Ratio |  | C0552246
LN | 33867-3 | Velocity ratio |  | C1316330

### Note

This Context Group formerly included SNOMED codes G-0371 and G-0372, which have been replaced by R-101BA and R-101BB, respectively. See Annex J.

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