DICOM Terms and Abbreviations

VR is AS

Value Representation "Age String"
A string of characters with one of the following formats -- nnnD, nnnW, nnnM, nnnY; where nnn shall contain the number of days for D, weeks for W, months for M, or years for Y. Example: "018M" would represent an age of 18 months.
Character Set: "0"-"9", "D", "W", "M", "Y" of Default Character Repertoire
Size Restriction(s): 4 bytes fixed

A, B, C, D, E, F, G, H, I, J, L, M, N, O, P, Q, R, S, T, U, V, W, X

Parts of this document are taken (with permission) from
Herman Oosterwijk's "DICOM Expert" Cheat Sheet
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