Use the most common representation found in literature for the fully specified name. Use the alternative representation as a synonym, if it is also represented in the literature. If neither representation is common, use the Arabic representation.
For example, in the AMA Manual of Style, cancer stages are expressed with the use of capital Roman numerals: stage I, stage II, stage III, stage IV. The term, "stage 0", usually indicates carcinoma in situ. Histologic grades are expressed with Arabic numerals, e.g., grade 2.
In general, content that depends on numeric ranges should not be used for precoordination.
Exception: acceptable numeric range
A standard definition with a fixed numeric range may be acceptable, i.e., the range is an explanation or definition of the score.