FY 2019 ICD-10-CM Code Updates

on Tuesday, 19 June 2018. All News Items | Coding

Although the official start of summer is not until tomorrow at 5:07 AM Central Time, here in Alabama the oppressive humidity and heat activated thunderstorms have already begun. Additionally, and much to my delight, I am already seeing more lightening bugs in the night sky than in recent years. This brings to mind the oft made statement by Mark Twain, “the difference between the almost right word and the right word is really a large matter. ‘tis the difference between the lightening bug and the lightening.”

The same analogy can be made for documentation in a medical record. CMS posted the FY 2019 ICD-10-CM diagnosis code updates to the CMS website on June 11, 2018. Several of the updates revise or expand a code description. Professional Coders and Clinical Documentation Improvement Specialists should take on the challenge of a little summer reading to find out what is changing. In the meantime, here are a few highlights about what will change come October 1, 2018.

Code Changes by the Numbers:

The FY 2019 ICD-10-CM codes updates includes:

  • 279 New Codes
  • 143 Revised Titles
  • 51 Deleted Codes
  • 71,932 Total Codes for FY 2019. (Increase from 71,704 in FY 2018).

The following tables highlights some of the changes come October 1, 2018.

Code ChangeCodeCode Description
Add F1223 Cannabis dependence with withdrawal
Add F1293 Cannabis use, unspecified with withdrawal
Delete F53 Puerperal psychosis
Add F530 Postpartum depression
Add F531 Puerperal psychosis
Add T43641A Poisoning by ecstasy, accidental (unintentional), initial encounter
Add T43641D Poisoning by ecstasy, accidental (unintentional), subsequent encounter
Add T43641S Poisoning by ecstasy, accidental (unintentional), sequela
Add T43642A Poisoning by ecstasy, intentional self-harm, initial encounter
Add T43642D Poisoning by ecstasy, intentional self-harm, subsequent encounter
Add T43642S Poisoning by ecstasy, intentional self-harm, sequela
Add T43643A Poisoning by ecstasy, assault, initial encounter
Add T43643D Poisoning by ecstasy, assault, subsequent encounter
Add T43643S Poisoning by ecstasy, assault, sequela
Add T43644A Poisoning by ecstasy, undetermined, initial encounter
Add T43644D Poisoning by ecstasy, undetermined, subsequent encounter
Add T43644S Poisoning by ecstasy, undetermined, sequela
No Change A92.5 Zika Virus
Add P35.4 Congenital Zika virus disease
Add Z20821 Contact with and (suspected) exposure to Zika virus
Add Z2883 Immunization not carried out due to unavailability of vaccine
Add Z62813 Personal history of forced labor or sexual exploitation in childhood(*)

(*)Note, code Z62813 falls within the Z62 category “Problems Related to Upbringing.” This is one of the ICD-10-CM code categories that identifies patients with potential health hazards related to socioeconomic and psychosocial circumstances. Coding Clinic for ICD-10-CM/PCS, First Quarter 2018 advised that it would be acceptable to report these codes based on documentation from non-physician clinicians following the patient. You can read more about the Z55-Z65 code categories in a related MMP article about Social Determinants of Health.

Information about the FY 2019 ICD-10-CM code updates can also be found on the Centered for Disease Control and Prevention (CDC) website at: https://www.cdc.gov/nchs/icd/icd10cm.htm. Reminder, the code updates will be used for discharges occurring from October 1, 2018 through September 30, 2019.

Article by Beth Cobb

Beth Cobb, RN, BSN, ACM, CCDS, is the Manager of Clinical Services at Medical Management Plus, Inc.  Beth has over twenty-five years of experience in healthcare including eleven years in Case Management at a large multi-facility health system. 

In her current position, Beth is a principle writer for MMP’s Wednesday@One weekly e-newsletter, an active member of our HIPAA Compliance Committee, MMP’s Education Department Program Director and co-developer of MMP’s proprietary Compliance Risk Assessment (CRA) Tool. You may contact Beth at This email address is being protected from spambots. You need JavaScript enabled to view it..

This material was compiled to share information.  MMP, Inc. is not offering legal advice.  Every reasonable effort has been taken to ensure the information is accurate and useful.

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