Table 1. Extent of DRG Use, by Payer Type.

Payer Type	Use of DRGs (Percentage)
BCBSA Member Plans	37 of 55 plans (67)
Medicaid	21 of 51 programs (41)
CHAMPUS	1 of 1 plan (100)
Workers' Compensation	3 of 51 plans (6)
Health Maintenance Organizations	64 of 546 (12)
Commercial Indemnity Plans	Rarely
Self-Insured Employers	Rarely; Growing?

NOTES: DRGs are diagnosis-related groups. BCBSA is Blue Cross and Blue Shield Association. CHAMPUS is Civilian Health and Medical Program of the Uniformed Services.

SOURCE: Carter, G.M., Jacobson, P.D., Kominski, G.F., and Perry, M.J., RAND, 1994.