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This affects Illinois Medicaid - HFS on All Plans plans.

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Illinois Medicaid - HFSAll Plans · Billing Codes · Provider NoticeHigh impact

ICD-10 Implementation and Conversion Delay

Q: What do I need to do?

Immediately: Continue using ICD-9 diagnostic codes for all claims until further notice. Billing team should postpone any planned ICD-10 system updates and staff training originally scheduled for October 1, 2014. Monitor CMS website and provider notices for announcement of new ICD-10 implementation date.

Act

immediately

Effective date

Not stated in the notice

Identified

Jun 20, 2026

Summary

The federal implementation of ICD-10 coding conversion from ICD-9 has been delayed from the original October 1, 2014 date. Healthcare providers should continue using ICD-9 codes until further notice and will be informed when a new implementation date is announced.

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What to do

immediately · 3 steps

01Continue using ICD-9 diagnostic codes for all claims until further notice.

02Billing team should postpone any planned ICD-10 system updates and staff training originally scheduled for October 1, 2014.

03Monitor CMS website and provider notices for announcement of new ICD-10 implementation date.

Original notice

ICD-10 Implementation and Conversion Delay

hfs.illinois.gov · Always check the source before changing claims.

View original ↗

Related policy hubs

Illinois Medicaid - HFS policies

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