Moderate harm:
Harm that requires a moderate increase in treatment and significant, but not permanent, harm.

Severe harm:
A permanent lessening of bodily, sensory, motor, physiologic or intellectual functions, including removal of the wrong limb or organ or brain damage, that is related directly to the incident and not related to the natural course of the service user's illness or underlying condition.

Moderate increase in treatment:
An unplanned return to surgery, an unplanned re-admission, a prolonged episode of care, extra time in hospital or as an outpatient, cancelling of treatment, or transfer to another treatment area (such as intensive care)

Prolonged pain:
Pain which a service user has experienced, or is likely to experience, for a continuous period of at least 28 days.

Prolonged psychological harm:
Psychological harm which a service user has experienced, or is likely to experience, for a continuous period of at least 28 days.