OASIS · Section GG
GG0170C — Lying to Sitting on Side of Bed (GG Section — Mobility)
Response options, how to score it, and the error that most often sends the record back. Cited to Ch. 3, Item GG0170C.
Response options
| Value | Meaning |
|---|---|
| 06 | Independent |
| 05 | Setup or clean-up assistance |
| 04 | Supervision or touching assistance |
| 03 | Partial/moderate assistance |
| 02 | Substantial/maximal assistance |
| 01 | Dependent |
| 07 | Patient refused |
| 09 | Not applicable |
| 10 | Not attempted due to environmental limitations |
| 88 | Not attempted due to medical condition or safety concerns |
How to score it
Assess the patient's ability to move from lying on their back to sitting on the side of the bed, with no back support. It is NOT required that the patient's feet be flat on the floor for the activity to count as completed — that requirement was removed from this item in the OASIS-E instrument. Score the level of assistance typically required; setup (05) means the helper only adjusts pillows/blankets or positions the bed — the patient performs the movement themselves.
The common error
Confusing this with GG0170B (Sit to Lying), which assesses the reverse movement — moving FROM sitting TO lying down, not lying to sitting. Also: scoring 'setup' (05) when the helper is actually providing physical stabilization during the movement, which should be 'supervision or touching assistance' (04) at minimum.
CMS Q&As on this item
- Q500 How do we assess GG0170 - Mobility activities when the patient doesn’t have equipment? Such as a car transfer…
- Q500.1 If a patient is dependent for all GG0170 bed mobility activities, would it be acceptable to code the patient…
- Q500.2 CMS guidance for the GG0170 walking activities and wheelchair activities state: “The 90-degree turn should…
- Q508 GG0170I, GG0170J, GG0170K, & GG0170L. How would the following walking scenarios be coded: a. Patient…
- Q508.1 GG0170I, GG0170J, GG0170K, GG0170L. During the SOC, the PT initiates treatment by providing a new walker…
- Q514.500 GG0170N & GG0170O. Guidance for the GG step activities discusses how a patient is permitted to take a rest…
- Q517 GG0170Q, GG0170R, & GG0170S. On admission, my patient reported that they only use a wheelchair when they…
- Q5 For the GG0170 walking activities, if a patient does “walk” 10, 50 and/or 150 feet, but is unsafe while doing…
Source: OASIS-E2 Guidance Manual — Ch. 3, Item GG0170C. Verified 2026-04-26.
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