OASIS · Section M

M1620 — Bowel Incontinence Frequency

Response options, how to score it, and the error that most often sends the record back. Cited to Ch. 3, Item M1620.

OASIS-E2 v1.00.0 · ingested 2026-04-26

Response options

ValueMeaning
0Very rarely or never has bowel incontinence
1Less than once weekly
2One to three times weekly
3Four to six times weekly
4On a daily basis
5More often than once daily
NAPatient has ostomy for bowel elimination
UKUnknown

How to score it

This item scores the frequency of the symptom (bowel incontinence), not its cause. 'On a daily basis' (code 4) means incontinence occurs once per day; more frequent episodes code 5. Code NA if the patient has an ostomy for bowel elimination. The UK (Unknown) option is omitted at Discharge. This item does not address treatment of incontinence or constipation (for example a bowel program) — only how often incontinence itself occurs. Dash is not a valid response for this item.

The common error

Coding based on whether the patient is on a bowel program or other incontinence treatment, rather than the actual observed/reported frequency of incontinence episodes — CMS is explicit that this item does not address treatment, only the symptom's frequency.

Source: OASIS-E2 Guidance ManualCh. 3, Item M1620. Verified 2026-04-26.

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