The objective of using HRGs is to ensure that NHS organisations use a common standard to report activity. This is achieved by ensuring that all NHS organisations use the HRG Grouper issued by NHS Digital, or another grouper that can be shown to produce the same results.
HRGs are currently used as a means of determining fair and equitable reimbursement for care services delivered by providers. These consistent 'units of currency' support standardised healthcare commissioning across the service. In addition, HRGs offer organisations the ability to understand their own activity in terms of the types of patients they care for, and the treatments they undertake. In addition they allow external comparative and benchmarking activity to take place.