The annual coding and payment update affects far more than the coding team. Revenue Cycle leaders should test the full path from scheduling through payment.
By Vanessa Couch-Laguana, Head of RCM, LunaBill
October 1 brings the annual reset hospital Revenue Cycle teams know well. For fiscal year 2027, CMS is updating inpatient payment rates, MS-DRG files, and ICD-10 code tables for discharges on or after October 1, 2026. CMS finalized a 2.3 percent increase in inpatient payment rates for hospitals that meet the applicable quality-reporting and electronic health record requirements, but the financial effect will vary by hospital and case mix.
The operational risk is not limited to whether a new code was loaded. A claim can still fail when the scheduled service, authorization, clinical documentation, code assignment, and billed service do not tell the same story. That is why October readiness belongs to the entire Revenue Cycle, not one department.
The transition follows the discharge date
For inpatient claims, the fiscal-year update applies based on the discharge date. An account admitted in September and discharged in October may cross into the new payment year. Teams should identify those cases before billing, confirm that the correct grouper and edits will apply, and review high-dollar or clinically complex stays instead of waiting for a denial or payment variance.
Revenue Integrity should take the lead in many organizations because the changes cross coding, charging, reimbursement, and claim accuracy. Another strong option is an operations-focused Revenue Cycle project manager who leads implementation across the full Revenue Cycle rather than representing one department. This is not an IT project lead. IT supports the system changes, while the operational lead coordinates Patient Access, Utilization Management, Clinical Documentation, Coding, Revenue Integrity, IT, and Billing.
Test the full path before October 1
The readiness plan should cover system updates, payer requirements, authorization workflows, chargemaster changes, claim edits, reporting changes, and test claims. Testing should use real scenarios, including services scheduled before October 1, admissions that span the transition, revised procedures, and authorization changes. The test should follow the account from registration through claim generation and expected payment.
The operational project lead should maintain one implementation plan, confirm that each department completed its work, and communicate changes to the teams that will use the new workflows. Testing should also confirm how teams will handle deleted or revised codes, new MS-DRG logic, documentation questions, and claims that group differently than expected. The goal is to catch the handoff failure before it reaches the payer.
Automation can surface mismatches earlier
Automation can identify cases that cross the October 1 date, compare the scheduled and authorized services with the information ultimately coded and billed, and flag missing or inconsistent data for review. It can also monitor payer portals and claim responses for emerging denial patterns, then organize the supporting account information before a staff member takes action.
The technology should support the decision, not make clinical or coding judgments. Any discrepancy involving medical necessity, a revised authorization, code selection, or a high-dollar payment should move to the appropriate human reviewer with the relevant evidence attached.
Monitor the first 30 days as a control period
The first month after implementation should have a defined monitoring plan. Leaders should review claim edits, authorization-related denials, coding holds, unexpected DRG movement, underpayments, and payer-specific trends at least weekly. If several accounts show the same issue, stop treating them as isolated corrections and move the problem to the team that owns the workflow or system configuration.
October 1 is a useful annual checkpoint. The strongest organizations use it to confirm that their data, workflows, and owners remain aligned from the first patient touch through final payment.
