JKN casemix is moving from INA-CBG to iDRG. We explain what changes and how to prepare your system — honestly: as of 2026 there is no official national go-live, so we do not invent dates.
Background
iDRG (Indonesian Diagnosis-Related Groups) is being positioned as the successor to INA-CBG as the basis for JKN casemix tariffs. Trials of the new grouper have been running since around October 2025, but as of 2026 there is no official national go-live date; the transition may proceed in phases or as dual-running.
That is why this page does not sell schedule certainty. Its focus: what changes, and the preparation that is useful whatever the final date turns out to be.
What changes
The gist: tariffs depend increasingly on clinical accuracy and documentation completeness — no longer just on ward class.
INA-CBG uses 4 severity-level codes: "0" for outpatient care, then "I" (Mild), "II" (Moderate), "III" (Severe) for inpatient care. iDRG replaces them with a more granular Complexity Level scale — code 0 (No CC) through 4 (Catastrophic CC), plus merge code 9 — five numeric levels in total.
More detailed grouping — tariffs depend increasingly on the accuracy of diagnosis, procedure, and severity.
Requires complete, consistent recording of complications & comorbidities (CC) and major CC (MCC) in the medical record.
iDRG is designed to no longer separate tariffs by hospital class and ward class, but to base them on clinical factors & facility competency instead.
Adievia's role: an E-Klaim module with a grouper and a fault-tolerant outbox queue, built to adapt to a new grouper format once the rules are finalized. What we can guarantee now is the foundation — not a claim of "full iDRG readiness" before the provisions are issued.
FAQ
iDRG (Indonesian Diagnosis-Related Groups) is the successor to INA-CBG as the basis for JKN (national health insurance) casemix tariffs. As of 2026, iDRG is still in a phased transition and no official national go-live date has been announced. Trials of the new grouper have been running since around October 2025, heading toward a phased rollout. We do not invent dates.
The severity scheme changes: INA-CBG uses 4 severity-level codes ("0" for outpatient, then I/II/III for inpatient, determined by whether CC/MCC are present in the secondary diagnosis), while iDRG uses Complexity Level 0 (No CC) through 4 (Catastrophic CC) plus merge code 9 — five numeric levels in total. Other changes: grouping granularity is higher, documentation of complications and comorbidities (CC/MCC) becomes more detailed, and there is a move to remove tariff differentiation by hospital class and ward class toward clinical-based parity.
Because the exact date has not been set, the safest step is to fix what stays relevant in both schemes: clinical documentation quality (especially CC/MCC), ICD-10/ICD-9-CM coding discipline, and an internal claim-audit routine. This is an investment that is not wasted, whatever the timeline turns out to be.
Adievia's E-Klaim module is built with a grouper and a fault-tolerant outbox queue. This foundation — clean coding plus an architecture designed to adapt to a new grouper format — is what we can guarantee now, without promising "full iDRG" readiness before the rules are finalized.