What to Expect From 2018 ICD-10 Coding Updates

Coders all around the United States know October 1 means - coding updates. In 2016, we saw major code changes in ICD-10-CM and ICD-10-PCS, and 2017 updates will be more of the same. Here’s what to expect from this year’s updates.


The total number of 2017 code changes is 71,704 (360 additions, 142 deletions, and 226 revisions). Overall, these changes mostly include wording changes to allow for more specific codes. Inclusion notes will allow expansions on diagnoses which are included under each code. Roughly 30 Excludes I and II notes were recategorized, with 22 Excludes I notes were changed to Excludes II notes, and two Excludes II notes changed to Excludes I notes.  Finally, spelling, grammar, and punctuation were cleaned up based upon feedback and observations from the previous year.

With the addition of new codes, physicians are going to have to be further educated on appropriate documentation requirements.


ICD-10-PCS is looking at a total of 78,705 code changes resulting from 3,562 new codes, 1,821 revised titles, and 646 deleted codes. The updates will add more cardiovascular and pediatric procedures to the database. Additional updates allow greater specificity regarding body parts, approaches, devices, qualifiers and other information.

What’s next?

Coders are going to have to be prepared for the upcoming October changes and updates. In addition to these code changes that go into effect on October 1, the ICD-10-PCS guidelines were updated with three new guidelines that will require implementation in 2018. While ICD-10-CM 2018 guidelines have not been published, it is expected that there will be guideline changes here as well.


Worried about getting everything done? Send us a message and let’s see if we can help.

Meredith McCollum, MBA, RHIA, CCS, ICD-10 Trainer | Compliance Manager

O: 813.422.5738 | C: 972.603.8389 | mmccollum@hctec.com