Modified Colorado Symptom Index (MCSI)

MCSI response scale codes for Ascent surveys

Field format: 9(2) — two-digit numeric string Valid values: 00-04, 97, 98

The MCSI is a 14-item self-report instrument. Each item uses the same response scale:

Code	Response
00	Not at all
01	Once during the month
02	Several times during the month
03	Several times a week
04	At least every day
97	No response / Don’t know
98	Declined to answer

Used in: ASCENT - MCSI Fields