This is a patient-reported outcome performance measure (PRO-PM) consisting of a patient-reported outcome measure (PROM) of risk-adjusted functional status (FS) change in balance confidence for patients aged 14+ with balance impairment. The change in FS is assessed using an item-response theory-based metric derived from the 16-item Activities-specific Balance Confidence (ABC) Scale, scored using the T-score metric (mean=50, SD=10), with higher scores representing higher balance confidence. In order to fairly measure performance between providers, the measure is risk-adjusted to patient characteristics known to be associated with FS outcomes and used as a performance measure (PM) at the patient and provider levels to assess quality.