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CID 7702 Projection and Thalamic Fibers
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## CID 7702 Projection and Thalamic Fibers

Type:

  Extensible

Version:

  20160314

Table CID 7702. Projection and Thalamic Fibers

Coding Scheme Designator | Code Value | Code Meaning | SNOMED-CT Concept ID | UMLS Concept Unique ID
--- | --- | --- | --- | ---
NEU | 1319 | corticobulbar tract |  | C1184617
NEU | 1320 | corticospinal tract |  | C0936236
SRT | T-A3700 | internal capsule | 85637007 | C0152341
SRT | T-A3800 | external capsule | 10517005 | C0228313
SRT | T-D0829 | auditory radiation | 410726006 | C1455736
SRT | T-A2880 | optic radiation | 70105001 | C0228277
NEU | 1466 | inferior optic radiation (Meyer's loop) |  | C3498430
NEU | 3473 | superior optic radiation (Baum's loop) |  | C4020527
NEU | 1726 | anterior thalamic radiation |  | C2338170
NEU | 2081 | superior thalamic radiation |  | C3498751
NEU | 2082 | inferior thalamic radiation |  | C2332665
NEU | 2083 | posterior thalamic radiation |  | C2336194

### Note

1. SNOMED has codes for the corticobulbar and corticospinal tracts and thalamic radiations in specific regions (e.g., internal capsule), but not generic codes independent of their regional location, so they are not used.

2. (T-D0829, SRT, "auditory radiation") is also known as the acoustic raditaion, or geniculotemporal tract.

3. (T-A2880, SRT, "optic radiation") is also known as the geniculo-calcarine tract, geniculostriate pathway or posterior thalamic radiation.

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