Z86.17 – Personal history of Clostridioides difficile infection

ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Billable code New in 2027

ICD-10-CM code Z86.17
Code
Z86.17 (claims format: Z8617)
Description
Personal history of Clostridioides difficile infection
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
21. Factors influencing health status and contact with health services (Z00-Z99)
Block
Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status
Parent codes
Z86 › Z86.1

Notes for Z86.17

Applicable to:
  • Personal history of Clostridium difficile colitis (fulminant) (nonfulminant)
  • Personal history of foodborne intoxication by Clostridium difficile
  • Personal history of Pseudomembraneous colitis
Excludes1 (not coded here):
  • enterocolitis due to Clostridium difficile, recurrent (A04.71)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Z86 – Personal history of certain other diseases

Code first:
  • any follow-up examination after treatment (Z09)

Z86.1 – Personal history of infectious and parasitic diseases

Applicable to:
Excludes1 (not coded here):
  • personal history of infectious diseases specific to a body system
  • sequelae of infectious and parasitic diseases (B90-B94)

Block Z77-Z99

Code also:
  • any follow-up examination (Z08-Z09)

Index terms for Z86.17

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in Z86.1

Frequently asked questions

What is ICD-10 code Z86.17?

Z86.17 is the ICD-10-CM code for personal history of Clostridioides difficile infection, in the block Z77-Z99 (Persons with potential health hazards related to family and personal history and certain conditions influencing health status).

Is Z86.17 a billable code?

Yes. Z86.17 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Z86.17 belong to?

It belongs to category Z86 – Personal history of certain other diseases.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.