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Diagnosis-Related Group (DRG) Rates

This page serves as a central repository for rates within the TRICARE/CHAMPUS DRG-Based Payment System. Use the dropdowns below to view current and historical data related to DRG-Based Payments.

This calculator is used as an estimating tool only. The values given in this calculator are approximate, and may not reflect actual reimbursement. Actual reimbursement will vary by claim. Please consult the authoritative guidance found in the TRICARE Reimbursement manual to obtain specific information on TRICARE reimbursement. You may also contact the Managed Care Support Contractor in your region to obtain further information. In addition, there may be other policy or special program provisions (such as Demonstration programs listed in the TRICARE Policy Manual, TRICARE Operations Manual, the Extended Care Health Option (ECHO), etc.) that affect listed codes, coverage or reimbursement. View the TRICARE Manuals.


Based on the Final Rule [84 FR 4333] that published on February 15, 2019, the TRICARE DRG effective date will be delayed to January 1, for FY20 and beyond.  See 32 CFR 199.14, (a)(1)(i)(D) DRG system updates. The CHAMPUS DRG-based payment system is modeled on the Medicare Prospective Payment System (PPS) and uses annually updated items and numbers from the Medicare PPS as provided for in this part and in instructions issued by the Director, DHA. The effective date of these items and numbers shall not correspond to that under Medicare PPS but shall be delayed until January 1, to align with TRICARE’s program year reporting. This allows for an administrative simplicity that optimizes healthcare delivery by reducing existing administrative burden and costs.


TRICARE/CHAMPUS Adjusted Standardized Amounts (ASAs) & DRG Weights Summary

DRG Payment Calculator

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Wage Indexes and IDME Factors

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DRG Update Summaries

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Hospital-Acquired Conditions (HAC)

TRICARE has adopted the same Hospital-Acquired Conditions as CMS.

Other Information

DHA Address: 7700 Arlington Boulevard | Suite 5101 | Falls Church, VA | 22042-5101

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